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1

Yeh, Chih-Hsin, Chia-Yi Chou, Chin-Sheng Wu, Lee-Ping Chu, Wei-Juan Huang, and Hsin-Chun Chen. "Effects of Different Extraction Methods on Vanilla Aroma." Molecules 27, no. 14 (2022): 4593. http://dx.doi.org/10.3390/molecules27144593.

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To establish the analytic conditions for examining the aroma quality of vanilla pods, we compared different extraction methods and identified a suitable option. We utilized headspace solid-phase microextraction (HS-SPME), steam distillation (SD), simultaneous steam distillation (SDE) and alcoholic extraction combined with gas chromatography (GC) and gas chromatography–mass spectrometry (GC-MS) to identify volatile components of vanilla pods. A total of 84 volatile compounds were identified in this experiment, of which SDE could identify the most volatile compounds, with a total of 51 species,
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2

Schulz, Eray, Mark Woollam, Paul Grocki, Michael D. Davis, and Mangilal Agarwal. "Methods to Detect Volatile Organic Compounds for Breath Biopsy Using Solid-Phase Microextraction and Gas Chromatography–Mass Spectrometry." Molecules 28, no. 11 (2023): 4533. http://dx.doi.org/10.3390/molecules28114533.

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Volatile organic compounds (VOCs) are byproducts from metabolic pathways that can be detected in exhaled breath and have been reported as biomarkers for different diseases. The gold standard for analysis is gas chromatography–mass spectrometry (GC–MS), which can be coupled with various sampling methods. The current study aims to develop and compare different methods for sampling and preconcentrating VOCs using solid-phase microextraction (SPME). An in-house sampling method, direct-breath SPME (DB–SPME), was developed to directly extract VOCs from breath using a SPME fiber. The method was optim
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3

Santos, Nathalia Horrana, Julian Zapata, Juan David Dereix, et al. "The Active Aroma of “Cerrado” Cashew and Cagaita Fruits: Comparison between Two Extraction Methods." Applied Sciences 12, no. 7 (2022): 3330. http://dx.doi.org/10.3390/app12073330.

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The objective of the present work is to characterize the aroma of “Cerrado” cashew (Anacardium othonianum Rizz.) and cagaita (Eugenia dysenterica) pulps. For this, we used headspace (HS) and two extraction methods (solid-phase extraction, SPE and solid-phase microextraction, SPME), as well as gas chromatography-olfactometry (GC-O) and gas chromatography-mass spectrometry (GC-MS) for identification of aroma compounds. While SPME was more efficient and extracted 17 and 21 compounds for “Cerrado” cashew and cagaita pulps, respectively, the SPE method extracted 13 compounds for both pulps. SPME sh
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Segura-Borrego, M. Pilar, Rocío Ríos-Reina, Cristina Ubeda, Raquel M. Callejón, and M. Lourdes Morales. "Comparison of the Novel Thin Film-Solid Phase Microextraction and Sorptive Extraction Methods for Picual and Hojiblanca Olive Oil Volatile Fraction Analysis in Headspace." Foods 9, no. 6 (2020): 748. http://dx.doi.org/10.3390/foods9060748.

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For first time, the new device named thin film solid phase microextraction (TF-SPME) has been used to determine the volatile profile of the Picual and Hojiblanca varieties of extra virgin olive oils. To this end, different traditional sampling methods such as headspace sorptive extraction (HSSE) with polydimethylsiloxane (PDMS) and polyethyleneglycol-modified silicone (EG/Silicone) Twisters® have been compared with the TF-SPME devices coated with different extraction polymeric phases. PARADISe software was used as a non-targeting method to process all data. The best results were obtained by HS
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Trofin, Alina Elena, Lucia Carmen Trincă, Elena Ungureanu, and Adina Mirela Ariton. "CUPRAC Voltammetric Determination of Antioxidant Capacity in Tea Samples by Using Screen-Printed Microelectrodes." Journal of Analytical Methods in Chemistry 2019 (May 14, 2019): 1–10. http://dx.doi.org/10.1155/2019/8012758.

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Measurement of antioxidant capacity represents an analytical major challenge in terms of accuracy, efficiency, rapid response, or low cost of detection methods. Quantification of antioxidant capacity of food samples using disposable screen‐printed microelectrodes (SPMEs) was based on cyclic voltammetry versus open-circuit potential (CV vs OCP) and differential pulse voltammetry (DPV) as compared with spectrophotometric measurement of the CUPRAC reaction with 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (trolox). The SPMEs are organic‐resistant electrodes and thus compatible with food
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Lakhili, Ahmed, Mohemmed Fekhaoui, Abdelkbir Bellaouchou, Abdallah El Abidi, and Latifa Tahiri. "SPME Extraction Methods of Doped Organochlorine Pesticides in Moroccan Water Samples." Mediterranean Journal of Chemistry 7, no. 4 (2018): 294–302. http://dx.doi.org/10.13171/mjc74181122-lakhili.

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To investigate Organochlorine (OC) in Moroccan water samples, two different methods of extraction being the solid phase micro extraction (SPME) and the liquid-liquid extraction (LLE) are exploited. The gas chromatography with an electron capture detector (GC-ECD) and the gas chromatography coupled to a mass spectrum (GC-MS) are elaborated. In order to get the best extraction, different process parameters are cheeked and optimized. The relevant results are obtained using a time of unspecific binding properties of 30 minutes’ duration and mode of agitation for 30 min with agitation by a magnetic
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7

Xie, Zhisheng, Qundi Liu, Zhikun Liang, et al. "The GC/MS Analysis of Volatile Components Extracted by Different Methods fromExocarpium Citri Grandis." Journal of Analytical Methods in Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/918406.

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Volatile components fromExocarpium Citri Grandis(ECG) were, respectively, extracted by three methods, that is, steam distillation (SD), headspace solid-phase microextraction (HS-SPME), and solvent extraction (SE). A total of 81 compounds were identified by gas chromatography-mass spectrometry including 77 (SD), 56 (HS-SPME), and 48 (SE) compounds, respectively. Despite of the extraction method, terpenes (39.98~57.81%) were the main volatile components of ECG, mainly germacrene-D, limonene, 2,6,8,10,14-hexadecapentaene, 2,6,11,15-tetramethyl-, (E,E,E)-, andtrans-caryophyllene. Comparison was ma
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Le Roy, Sarah, Catherine Fillonneau, Benoist Schaal, Carole Prost, and Angélique Villière. "Comparative Investigation of Conventional and Innovative Headspace Extraction Methods to Explore the Volatile Content of Human Milk." Molecules 27, no. 16 (2022): 5299. http://dx.doi.org/10.3390/molecules27165299.

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The odor of human milk induces search-like movements and oral activation in newborns, which increases their chances of taking advantage of milk intake and benefits. However, the underlying volatile fraction of human milk remains understudied. This study aimed to devise a simple method to extract a wide range of volatile compounds from small-volume human milk samples. Headspace solid phase micro-extraction (HS-SPME) with a Car/PDMS fiber and dynamic headspace extraction (D-HS) with a Tenax or a trilayer sorbent were tested because of their selective affinity for volatiles. Then, innovative vari
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Indana, Nurul, Ali Mustofa, Mujamil Qomar, Abd Aziz, and Imam Junaris. "Government Policy in Strengthening Education Quality Assurance in Islamic Education Institutions." QALAMUNA: Jurnal Pendidikan, Sosial, dan Agama 16, no. 1 (2024): 393–406. http://dx.doi.org/10.37680/qalamuna.v16i1.3245.

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This article discusses government policies to strengthen education quality assurance in Islamic educational institutions. This is library research, with documentary data collection methods analysis using content or content analysis. The results showed that the education quality policy refers to eight SNP: Content Standards, Process Standards, Graduate Competency Standards, Educator and Education Personnel Standards, Management Standards, Facilities and Infrastructure Standards, Financing Standards, and Assessment Standards. Of the eight National Education Standards, each has its policy. To mea
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Liu, Dengyong, Cong Yang, Lu Bai, et al. "Analysis of Volatile Compounds in Jinhua ham Using Three Extraction Methods Combined with Gas Chromatography–Time-of-Flight Mass Spectrometry." Foods 11, no. 23 (2022): 3897. http://dx.doi.org/10.3390/foods11233897.

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The volatile compounds in Jinhua ham samples after different aging times were characterized using solvent-assisted flavor evaporation (SAFE), solid-phase microextraction (SPME), and needle trap (NT) extraction methods combined with gas chromatography–time-of-flight mass spectrometry (GC–TOF/MS). Hundreds of aroma compounds were identified, including aldehydes, alcohols, ketones, furans, esters, acids, pyrazines, and sulfides. The results showed that NT extracted the greatest number of volatile compounds, whereas the extraction efficiency of SPME headspace adsorption was highest among the three
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Torabbeigi, Marzieh, Parviz Abroomand Azar, Anousheh Sharifan, and Zahra Aghaei Meibodi. "Antibacterial Activity and Comparison of the Volatile Constituents Obtained by Several Extraction Methods from the Flowers, Stems and Leaves of Astrodaucus orientalis." Natural Product Communications 7, no. 2 (2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700236.

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The oils of the flowers, stems and leaves of Astrodaucus orientalis L. were separately extracted using hydrodistillation (HD), head-space solid-phase microextraction (HS-SPME) and microwave assisted head-space solid-phase microextraction (MA-HS-SPME). The volatile constituents were analyzed by GC and GC/MS. Temperature and time of extraction, microwave power and exposure time of extraction were optimized. Polydimethylsiloxane (PDMS) fiber was used as the solid phase for SPME methods. The main constituents of the flower, stem and leaf oils isolated by HD, HS-SPME and MA-HS-SPME are as follows,
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12

Farooq, Muhammad Shoaib, Uzma Omer, and Rabia Tahseen. "Software Project Management Education: A Systematic Review." VFAST Transactions on Software Engineering 9, no. 3 (2021): 102–19. http://dx.doi.org/10.21015/vtse.v9i3.702.

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Software project management (SPM) is a significant field, related to the discipline of software engineering, which has attracted a huge number of researchers and practitioners in recent years. The role of software project management education (SPME) is essential to instill appropriate competencies in SPM students so that they could be able to deliver effectively in the software industry as SPM professionals. As the demand of SPM professionals is continuously increasing, the responsibilities of academia have also been increased to ensure and provide the solid basis and quality education to SPM.
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13

Shen, Shun, Yunfei Sha, Chunhui Deng, Daxi Fu, Jiakuan Chen, and Xiangmin Zhang. "Comparison of Solid-Phase Microextraction, Supercritical Fluid Extraction, Steam Distillation, and Solvent Extraction Techniques for Analysis of Volatile Consituents in Fructus Amomi." Journal of AOAC INTERNATIONAL 88, no. 2 (2005): 418–23. http://dx.doi.org/10.1093/jaoac/88.2.418.

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Abstract Four sampling techniques, solid-phase microextraction (SPME), supercritical fluid extraction (SFE), steam distillation (SD), and solvent extraction (SE), were compared for the analysis of volatile constituents from a traditional Chinese medicine (TCM) of the dried ripe fruit of Fructus Amomi (Sha Ren). A total of 38 compounds were identified by gas chromatography/mass spectrometry. Different SFE and SPME parameters (modifier content, extraction pressure, and temperature for SFE and fibers, extraction temperature, and time for SPME) were studied. The results by SFE and SPME were compar
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14

Ajmal, Puthiyaveettilparambu Y., Rahul C. Bhangare, Mahesh Tiwari, and Sanjay K. Sahu. "Analysis of Nitroaromatics: A Comparison Between Gas Chromatography, Liquid Chromatography and their Hyphenation with Solid Phase Micro-Extraction." Current Chromatography 6, no. 1 (2019): 42–51. http://dx.doi.org/10.2174/2213240606666190423122358.

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Background: A major class of nitro-explosives being used in military and commercial purposes belongs to organic compounds containing nitro (NO2) groups like nitrobenzene, nitrotoluenes, and nitramines. Apart from being energetic materials, these substances are inherently toxic to human beings. These substances may find their way into different environmental matrices from the site of their military or commercial applications. They are present in nature at ultra-trace levels. Methods: Chromatographic techniques have been widely used for the detection and quantification of nitro-explosives from v
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15

Feng, Tao, Fangfang Liu, Xu Wang, et al. "Evaluation of Different Analysis Methods for the Encapsulation Efficiency of Amylose Inclusion Compound." International Journal of Polymer Science 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/645916.

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Recently amylose has drawn much attention as a potential vehicle for the nanoencapsulation of different flavor molecules, and the encapsulation efficiency of the complex is an important index for the evaluation of its embedding effect. In this study, three different methods for assessing encapsulation efficiency of amylose-flavor complexes were compared. We chose heptanol and menthone as the flavor molecules, as both of them exhibit a typical odor. The complexes were prepared by the melting method, and their structures were characterized by XRD. In addition, the encapsulation efficiency was de
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16

Emmons, Ronald V., Ramin Tajali, and Emanuela Gionfriddo. "Development, Optimization and Applications of Thin Film Solid Phase Microextraction (TF-SPME) Devices for Thermal Desorption: A Comprehensive Review." Separations 6, no. 3 (2019): 39. http://dx.doi.org/10.3390/separations6030039.

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Through the development of solid phase microextraction (SPME) technologies, thin film solid phase microextraction (TF-SPME) has been repeatedly validated as a novel sampling device well suited for various applications. These applications, encompassing a wide range of sampling methods such as onsite, in vivo and routine analysis, benefit greatly from the convenience and sensitivity TF-SPME offers. TF-SPME, having both an increased extraction phase volume and surface area to volume ratio compared to conventional microextraction techniques, allows high extraction rates and enhanced capacity, maki
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17

Dugheri, Stefano, Giovanni Cappelli, Niccolò Fanfani, et al. "A New Perspective on SPME and SPME Arrow: Formaldehyde Determination by On-Sample Derivatization Coupled with Multiple and Cooling-Assisted Extractions." Molecules 28, no. 14 (2023): 5441. http://dx.doi.org/10.3390/molecules28145441.

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Formaldehyde (FA) is a toxic compound and a human carcinogen. Regulating FA-releasing substances in commercial goods is a growing and interesting topic: worldwide production sectors, like food industries, textiles, wood manufacture, and cosmetics, are involved. Thus, there is a need for sensitive, economical, and specific FA monitoring tools. Solid-phase microextraction (SPME), with O-(2,3,4,5,6-pentafluorobenzyl)-hydroxylamine (PFBHA) on-sample derivatization and gas chromatography, is proposed for FA monitoring of real-life samples. This study reports the use of polydimethylsiloxane (PDMS) a
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18

Valdés, Cristian, Carlos M. Silva-Neto, Claudio Salas, María Teresa Muñoz-Quezada, Maribel Mamani, and Rodrigo O. Araujo. "What Can Insects Tell Us about the Use of Pesticides? The Detection and Quantification of Chlorpyrifos via QuEChERS and HEADSPACE-SPME Methods Using GC/MS/MS." Agronomy 14, no. 1 (2023): 21. http://dx.doi.org/10.3390/agronomy14010021.

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The global use of pesticides, exceeding 4 million tons annually, poses substantial threats to public health and the environment. Numerous studies emphasize the correlation between pesticide exposure, genotoxicity, and neurobehavioral effects, which particularly impact children and agricultural workers. Recent research underscores the health risks associated with moderately toxic pesticides like chlorpyrifos. Chlorpyrifos contamination in crops, a result of extensive pesticide use since the 1960s, raises significant concerns regarding human health and the environment. Given its potential atmosp
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Lv, Shidong, Yuanshuang Wu, Jifu Wei, et al. "Application of gas chromatography-mass spectrometry and chemometrics methods for assessing volatile profiles of Pu-erh tea with different processing methods and ageing years." RSC Advances 5, no. 107 (2015): 87806–17. http://dx.doi.org/10.1039/c5ra15381f.

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A method was developed based on head-space solid phase microextraction/gas chromatography-mass spectrometry (HS-SPME/GC-MS) combined with multivariate statistical methods to assess volatile profiles in different types of Pu-erh teas.
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Djurovic, Rada. "Solid phase microextraction (SPME) in determination of pesticide residues in soil samples." Pesticidi i fitomedicina 26, no. 3 (2011): 177–84. http://dx.doi.org/10.2298/pif1103177d.

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The basic principles and application possibilities of the methods based on solid phase microextraction (SPME) in the analysis of pesticide residues in soil samples are presented in the paper. The most important experimental parameters which affect SPME efficacy in pesticide determination (type and thickness of microextraction fiber, duration of microextraction, temperature at which it is conducted, effect of addition of salts (the effect of efflorescence), temperature and time of desorption, the choice of optimal solvent for pesticide exctraction from the soil and the optimal number of extract
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Chen, Yujun, Tao Gong, Cilong Yu, Xiang Qian, and Xiaohao Wang. "Microfluidic Flow-through SPME Chip for Online Separation and MS Detection of Multiple Analyses in Complex Matrix." Micromachines 11, no. 2 (2020): 120. http://dx.doi.org/10.3390/mi11020120.

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Simplifying tedious sample preparation procedures to improve analysis efficiency is a major challenge in contemporary analytical chemistry. Solid phase microextraction (SPME), a technology developed for rapid sample pretreatment, has flexibility in design, geometry, and calibration strategies, which makes it a useful tool in a variety of fields, especially environmental and life sciences. Therefore, it is important to study the coupling between the microfluidic electrospray ionization (ESI) chip integrated with the solid phase microextraction (SPME) module and the electrospray mass spectromete
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22

Díaz, A., M. T. Galceran, and F. Ventura. "Determination of estrogenic short ethoxy chain nonylphenols and metabolites in river and treated water by SPE (solid phase extraction) and SPME (solid phase microextraction)." Water Supply 3, no. 1-2 (2003): 329–34. http://dx.doi.org/10.2166/ws.2003.0121.

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Two solid-phase microextraction (SPME) procedures have been developed to determine short ethoxy chain nonylphenols and metabolites in water. A direct-SPME method has been used for the determination of short ethoxy chain nonylphenols and their brominated derivatives, whereas the in-sample derivatization headspace-SPME method has proved to be suitable for the simultaneous determination of short ethoxy nonylphenols and their acidic metabolites. Several parameters affecting both SPME procedures, such as extraction mode, fiber selection, extraction time, effect of organic modifiers, derivatization
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23

Górecki, Tadeusz, Anna Boyd-Boland, Zhouyao Zhang, and Janusz Pawliszyn. "1995 McBryde Medal Award Lecture Solid phase microextraction – a unique tool for chemical measurements." Canadian Journal of Chemistry 74, no. 7 (1996): 1297–308. http://dx.doi.org/10.1139/v96-145.

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The paper presents recent advances in solid phase microextraction (SPME). The method utilizes a small fused silica fibre coated with a suitable polymeric stationary phase for analyte extraction from various matrices. The fibre is mounted in a syringe-like holder for protection. SPME has been used for the characterization of polymeric coating properties. Infinite-dilution weight-fraction activity coefficients have been determined for five solutes in two different stationary phases. Their values correlate well with the structure of the analytes and the coating. Other SPME uses include simultaneo
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Yang, Jyisy, and Fang-Pei Tsai. "Comparison of SPME/Transmission IR and SPME/ATR-IR Spectroscopic Methods in Detection of Chloroanilines in Aqueous Solutions." Applied Spectroscopy 55, no. 7 (2001): 919–26. http://dx.doi.org/10.1366/0003702011952730.

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Hendi, Roghayeh, Marzieh Piriyaei, Marzieh Babashpour Asl, and Mir Mahdi Abolghasemi. "Nanoporous Silica-Polypyrrole/SBA-15 as Fiber Coated in the Solid-Phase Microextraction for Determination of Salvia hydrangea DC. Essential Oil." Pharmaceutical Sciences 24, no. 3 (2018): 235–39. http://dx.doi.org/10.15171/ps.2018.34.

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Background: In the current study, simultaneous extraction and concentration of the analytes from the headspace on the solid phase microextraction (SPME) fiber were followed by transferring the essential oil components of Salvia hydrangea DC to the headspace with the help of a heating source. Methods: The essential oil components of the plant were extracted and concentrated in a single step. A one-at-the-time optimization procedure was applied to the microextraction conditions by using the nanocomposite fiber of polypyrrole/SBA-15. Results: The results of the essential oil extraction of Salvia
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Narváez, Esteban, Esteban Zapata, Juan David Dereix, Carlos Lopez, Sandra Torijano-Gutiérrez, and Julián Zapata. "A Comparative Analysis of Cold Brew Coffee Aroma Using the Gas Chromatography–Olfactometry–Mass Spectrometry Technique: Headspace–Solid-Phase Extraction and Headspace Solid-Phase Microextraction Methods for the Extraction of Sensory-Active Compounds." Molecules 29, no. 16 (2024): 3791. http://dx.doi.org/10.3390/molecules29163791.

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Coffee, one of the most widely consumed commodities globally, embodies a sensory experience deeply rooted in social, cultural, and hedonic contexts. The cold brew (CB) method, characterized by cold extraction, is a refreshing and unique alternative to traditional coffee. Despite its growing popularity, CB lacks defined preparation parameters and comprehensive analysis of its aromatic composition. In this study, we aimed to obtain a representative extract of the volatile matrix of CB and characterize the aroma of sensory-active compounds using advanced techniques such as headspace–solid-phase M
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Harwood, Amanda D., Peter F. Landrum, and Michael J. Lydy. "A comparison of exposure methods for SPME-based bioavailability estimates." Chemosphere 86, no. 5 (2012): 506–11. http://dx.doi.org/10.1016/j.chemosphere.2011.10.015.

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Azar, Parviz Abroomand, Marzieh Torabbeigi, and Mohammad Saber Tehrani. "The Investigation of Essential Oil ofVitex pseudo-negundWith Different Analytical Methods: Hydrodistillation, SFME, HS-SPME and MA-HS-SPME." Journal of Essential Oil Bearing Plants 14, no. 6 (2011): 755–60. http://dx.doi.org/10.1080/0972060x.2011.10644000.

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Sha, Yun F., Shun Shen, and Geng L. Duan. "Analysis of Rhioxma Curcumae Aeruginosae Volatiles by Solid-phase Microextraction with Gas Chromatography-Mass Spectrometry." Zeitschrift für Naturforschung C 59, no. 7-8 (2004): 533–37. http://dx.doi.org/10.1515/znc-2004-7-815.

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AbstractIn this paper, a headspace solid-phase microextraction (HS-SPME) method was applied to analyse the volatile compounds in a traditional Chinese medicine (TCM), Rhioxma Curcumae Aeruginosae. SPME parameters such as fibers, extraction temperature, extraction time and desorption time were investigated. Thirty-five volatile compounds were separated and identified. Relative standard deviations (RSDs) were less than 8.4%, showing that the method has a good reproducibility. The volatile constituents were also analyzed by steam distillation (SD) and thirty-seven compounds were identified. The s
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Yu, Zonghao, Ruipeng Yu, Shengfang Wu, Weijie Yu, and Qijun Song. "Preparation of a Novel Solid Phase Microextraction Fiber for Headspace GC-MS Analysis of Hazardous Odorants in Landfill Leachate." Processes 10, no. 6 (2022): 1045. http://dx.doi.org/10.3390/pr10061045.

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The practice of odorant analysis can often be very challenging because odorants are usually composed of a host of volatile organic compounds (VOCs) at low concentrations. Preconcentration with solid phase microextraction (SPME) is a conventional technique for the enrichment of these volatile compounds before analysis by headspace gas chromatography-mass spectrometry (GC-MS). However, commercially available SPME products usually bear the defects of weak mechanical strength and high cost. In this work, novel SPME fibers were prepared by a one-pot synthesis procedure from divinylbenzene (DVB), po
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Hu, Die, Junrui Guo, Ting Li, et al. "Comparison and Identification of the Aroma-Active Compounds in the Root of Angelica dahurica." Molecules 24, no. 23 (2019): 4352. http://dx.doi.org/10.3390/molecules24234352.

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Solid-phase microextraction (SPME), purge and trap (P&T), stir bar sportive extraction (SBSE), and dynamic headspace sampling (DHS) were applied to extract, separate and analyze the volatile compounds in the roots of Hangbaizhi, Qibaizhi, and Bobaizhi and the GC-O-MS/MS (AEDA) was utilized for the quantification of key aroma compounds. Totals of 52, 54, and 43 aroma-active compounds extracted from the three samples by the four extraction methods were identified. Among these methods, the SPME effectively extracted the aroma compounds from the A. dahurica. Thus, using the SPME methods for qu
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Hou, Wenfu, Qianhui Han, Heng Gong, et al. "Analysis of volatile compounds in fresh sturgeon with different preservation methods using electronic nose and gas chromatography/mass spectrometry." RSC Advances 9, no. 67 (2019): 39090–99. http://dx.doi.org/10.1039/c9ra06287d.

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Contamination of microorganisms caused rapidly quality deterioration of fresh sturgeon meat. During the chilling storage, the sensory analysis and volatile compounds evaluation were well performed by electronic nose and SPME-GC/MS.
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Beraich, Abdessamad, Burak Dikici, Hammadi El Farissi, et al. "The Moroccan Meska Horra: A Natural Candidate for Food and Therapeutic Applications." Foods 14, no. 7 (2025): 1158. https://doi.org/10.3390/foods14071158.

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Mastic gum (Pistacia lentiscus L. resin), traditionally known as Meska Horra in Morocco, is valued for its bioactive properties, although its composition varies depending on its geographical origin. The essential oil profile is also influenced by the extraction method used. This study evaluates the chemical composition, bioactivity, and extraction efficiency of Meska Horra essential oil from eastern Morocco. Specifically, it explores its potential as a natural preservative and functional food ingredient by comparing various extraction methods and their impact on the profiles of volatile compou
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Gu, Yuchen, Tao Feng, Shiqing Song, et al. "GC-O-MS Analysis of Aroma-Active Compounds of Chinese Almonds Obtained by Different Pretreatment Methods." Journal of Food Biochemistry 2023 (April 19, 2023): 1–10. http://dx.doi.org/10.1155/2023/9950778.

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Almonds (Prunus dulcis) are an ancient and commercially valuable crop from Asia. In this experiment, solid-phase microextraction (SPME), solvent-assisted flavor evaporation (SAFE), and simultaneous distillation extraction (SDE) were used to pretreat the almonds from China. The almond extract was then analyzed by aroma extract dilution analysis (AEDA) with gas chromatography-olfactory-mass spectrometer (GC-O-MS). SPME and SAFE were identified as the better extraction methods, and 52 aroma-active compounds of almonds, such as 1-nonanal, eugenol, and linalool, were identified based on odor activi
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Fäldt, Jenny, Mikael Eriksson, Irena Valterová, and Anna-Karin Borg-Karlson. "Comparison of Headspace Techniques for Sampling Volatile Natural Products in a Dynamic System." Zeitschrift für Naturforschung C 55, no. 3-4 (2000): 180–88. http://dx.doi.org/10.1515/znc-2000-3-408.

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Abstract Commonly used dynamic sorption techniques for collecting biologically active volatile compounds have been compared. Solid phase microextraction (SPME) using two types of fibers (polydimethylsiloxane, PDMS, 100 μm, and carbowax/divinylbenzene, CW/DVB, 65 μm) was compared to purge and trap methods (Porapak Q, Tenax TA and charcoal) and a technique based on absorption in methanol in a cooling bath. Sampling was done in a stream of purified air (20 ml/min) in a closed and temperature-regulated (27 °C) glass tube, passing over a capillary tube containing a hexane solution of tridecane, hep
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Kung, Chen, Chao, Wu, Lin, and Chen. "Analysis of Volatile Constituents in Platostoma palustre (Blume) Using Headspace Solid-Phase Microextraction and Simultaneous Distillation-Extraction." Foods 8, no. 9 (2019): 415. http://dx.doi.org/10.3390/foods8090415.

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Hsian-tsao (Platostoma palustre Blume) is a traditional Taiwanese food. It is admired by many consumers, especially in summer, because of its aroma and taste. This study reports the analysis of the volatile components present in eight varieties of Hsian-tsao using headspace solid-phase microextraction (HS-SPME) and simultaneous distillation-extraction (SDE) coupled with gas chromatography (GC) and gas chromatography-mass spectrometry (GC/MS). HS-SPME is a non-heating method, and the results show relatively true values of the samples during flavor isolation. However, it is a kind of headspace a
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Rodriguez-Lafuente, Angel, Hamed Piri-Moghadam, Heather L. Lord, Terry Obal, and Janusz Pawliszyn. "Inter-laboratory validation of automated SPME-GC/MS for determination of pesticides in surface and ground water samples: sensitive and green alternative to liquid–liquid extraction." Water Quality Research Journal 51, no. 4 (2016): 331–43. http://dx.doi.org/10.2166/wqrjc.2016.011.

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An automated solid-phase microextraction gas chromatography/mass spectometry (SPME-GC/MS) method was developed for the determination of semi-volatile pesticides from several classes with a wide range of polarities in an environmental matrix, and validated according to the rigorous standards of a large commercial laboratory reporting data requiring regulatory acceptance with the purpose of being used as a standard test protocol. The target analytes showed a detection limit of 0.05–1 μg L−1, good calibration linearity (R2 > 0.99) with a wide linear range of 0.05–20 μg L−1, and accuracy in
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Andraščíková, Mária, and Svetlana Hrouzková. "Recent achievements and applications of solid – phase microextraction in pesticide residues analysis in food." Acta Chimica Slovaca 8, no. 2 (2015): 178–90. http://dx.doi.org/10.1515/acs-2015-0030.

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Abstract The current trend in sample preparation methods is devoted to minimizing or eliminating the volume of extractive solvent. In this review, the focus on solid phase microextraction (SPME) as a solvent free sample preparation method for the isolation of pesticides residues in different food matrices is given. To achieve satisfactory extraction efficiency, selection of the fiber coating is an important step in the method development. Here, recent trends in new supporting materials and new fiber coatings development are discussed. Finally, applicability of SPME for the pesticide residues a
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Yang, Jyisy, and Yuh-Shenq Huang. "IR Chemical Sensor for Detection of Aromatic Compounds in Aqueous Solutions Using Alkylated Polystyrene-Coated ATR Waveguides." Applied Spectroscopy 54, no. 2 (2000): 202–8. http://dx.doi.org/10.1366/0003702001949401.

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The combination of solid-phase micro-extraction (SPME) with infrared (IR) attenuated total reflection (ATR) spectroscopic methods provides a fast and convenient way to detect organic compounds in aqueous solutions. In an effort to overcome the limitation of commercially available polymers, polystyrene (PS) was derivatized with different alkyl groups chain lengths to increase the performance of SPME-IR/ATR in detection of various aromatic compounds in aqueous solutions. The alkylated PS provides higher extraction efficiency and speed of diffusion in analysis of aromatic compounds than the commo
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Kerry, Gemma L., Kirstin E. Ross, Jackie L. Wright, and G. Stewart Walker. "A Review of Methods Used to Detect Methamphetamine from Indoor Air and Textiles in Confined Spaces." Toxics 10, no. 11 (2022): 710. http://dx.doi.org/10.3390/toxics10110710.

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Methamphetamine manufacture, use, and the resulting contamination is a significant issue that affects public health, the environment, and the economy. Third-hand exposure to methamphetamine can result in adverse health risks for individuals and first responders. Such exposures can result from the inhalation of airborne residues or from contact with contaminated objects. This review was conducted to determine the current methods used for methamphetamine extraction from indoor air and porous fabric materials. Dynamic solid phase microextraction (SPME) and sorbent sampling tubes have been applied
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Fitzgerald, Neil, and John C. Edwards. "Investigation of Solid Phase Microextraction Gas Chromatography–Mass Spectrometry, Fourier Transform Infrared Spectroscopy and 1H qNMR Spectroscopy as Potential Methods for the Authentication of Baijiu Spirits." Beverages 9, no. 1 (2023): 25. http://dx.doi.org/10.3390/beverages9010025.

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The baijiu spirit is often the focus of fraudulent activity due to the widely varying prices of the products. In this work, Solid Phase Microextraction Gas Chromatography (SPME GCMS), Fourier Transform Infrared (FTIR) Spectroscopy and 1H qNMR spectroscopy were evaluated as potential methods to authenticate baijiu samples. Data were collected for 30 baijiu samples produced by seven different distilleries. The data from the SPME GCMS and FTIR methods were treated by a Principal Component Analysis to identify clusters that would suggest chemical differences in the products from different distille
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Mohebat, Razieh, and Mina Zare Bidoki. "Comparative chemical analysis of volatile compounds of Echinops ilicifolius using hydrodistillation and headspace solid-phase microextraction and the antibacterial activities of its essential oil." Royal Society Open Science 5, no. 2 (2018): 171424. http://dx.doi.org/10.1098/rsos.171424.

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The volatile compounds from various parts of Echinops ilicifolius (Compositae) such as flowers, leaves and roots obtained by hydrodistillation (HD) and headspace solid-phase microextraction (HS-SPME) methods were subsequently analysed by GC and GC/MS and compared. Thirty-seven and 20 components of the flower of E. ilicifolius were characterized, representing 99.7% and 100.0% of the total compositions using the HD and HS-SPME methods, respectively. The major constituents of the hydrodistilled oil were identified as linalool (58.6%), geraniol (17.4%), n -dodecane (10.9%) and nerol (5.4%), wherea
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Pasquini, Dalila, Antonella Gori, Francesco Ferrini, and Cecilia Brunetti. "An Improvement of SPME-Based Sampling Technique to Collect Volatile Organic Compounds from Quercus ilex at the Environmental Level." Metabolites 11, no. 6 (2021): 388. http://dx.doi.org/10.3390/metabo11060388.

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Biogenic Volatile Organic Compounds (BVOCs) include many chemical compounds emitted by plants into the atmosphere. These compounds have a great effect on biosphere–atmosphere interactions and may affect the concentration of atmospheric pollutants, with further consequences on human health and forest ecosystems. Novel methods to measure and determine BVOCs in the atmosphere are of compelling importance considering the ongoing climate changes. In this study, we developed a fast and easy-to-handle analytical methodology to sample these compounds in field experiments using solid-phase microextract
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Williams, Cody, and Astrid Buica. "Comparison of an Offline SPE–GC–MS and Online HS–SPME–GC–MS Method for the Analysis of Volatile Terpenoids in Wine." Molecules 25, no. 3 (2020): 657. http://dx.doi.org/10.3390/molecules25030657.

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The aroma profile is an important marker for wine quality. Various classes of compounds are responsible for the aroma of wine, and one such class is terpenoids. In the context of this work, a validated gas chromatography–mass spectrometry (GC–MS) method for the quantitation of terpenoids in red and white wine using headspace solid-phase microextraction (HS–SPME) and solid-phase extraction (SPE) was established. Calibrations were performed in the respective base wine using both sample preparation methods. The linearity, precision and accuracy evaluated for the respective matrices were excellent
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Kraševec, Ida, Nataša Nemeček, Maja Lozar Štamcar, Irena Kralj Cigić, and Helena Prosen. "Non-Destructive Detection of Pentachlorophenol Residues in Historical Wooden Objects." Polymers 13, no. 7 (2021): 1052. http://dx.doi.org/10.3390/polym13071052.

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Wood is a natural polymeric material that is an important constituent of many heritage collections. Because of its susceptibility to biodegradation, it is often chemically treated with substances that can be harmful to human health. One of the most widely used wood preservatives was pentachlorophenol (PCP), which is still present in museum objects today, although its use has been restricted for about forty years. The development of non-destructive methods for its determination, suitable for the analysis of valuable objects, is therefore of great importance. In this work, two non-destructive so
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Tsai, Jia-Jen, Yu-Ting Lai, and Yu-Chie Chen. "Using Solid-Phase Microextraction Coupled with Reactive Carbon Fiber Ionization-Mass Spectrometry for the Detection of Aflatoxin B1 from Complex Samples." Separations 9, no. 8 (2022): 199. http://dx.doi.org/10.3390/separations9080199.

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Aflatoxin B1 (AFB1) is a common mycotoxin present in agricultural and food products. Therefore, rapid screening methods must be developed for AFB1 detection with high sensitivity and good selectivity. In this study, we developed an analytical method based on the combination of solid-phase microextraction (SPME) with carbon fiber ionization (CFI)-mass spectrometry (MS) to detect the presence of trace AFB1 from complex samples. A pencil lead (type 2B, length: ~2.5 cm) with a sharp end (diameter: ~150 μm) was used as the SPME fiber and the ionization emitter in CFI-MS analysis. Owing to the graph
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Adam, Martin, Petr Dobiáš, Petra Pavlíková, and Karel Ventura. "Comparison of solid-phase and single-drop microextractions for headspace analysis of herbal essential oils." Open Chemistry 7, no. 3 (2009): 303–11. http://dx.doi.org/10.2478/s11532-009-0048-5.

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AbstractThe analytical microextraction methods of gas chromatography coupled with flame ionisation detector (GC-FID) for determination of selected essential oils in herbs were proposed. Two microextraction methods for the isolation of essential oils from plants such as Lavandula spica L., Melissa officinalis L., Mentha piperita L. and Salvia officinalis L. were used. The methods of solid-phase and single-drop microextractions, were optimised and compared. The obtained LOD values for all studied essential oils were found to be within 2.5–20.5 μg for SDME and 57.0–139.8 μg for SPME method per 10
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Svoboda, Zdenek, Renata Mikulíková, Sylvie Běláková, Karolína Benešová, Ivana Márová, and Zdenek Nesvadba. "Optimization of Modern Analytical SPME and SPDE Methods for Determination of Trans-2-nonenal in Barley, Malt and Beer." Chromatographia 73, S1 (2011): 157–61. http://dx.doi.org/10.1007/s10337-011-1958-x.

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Jin, Xinyu, Shimin Wu, Wenjuan Yu, et al. "Wine Authentication Using Integration Assay of MIR, NIR, E-tongue, HS-SPME-GC-MS, and Multivariate Analyses: A Case Study for a Typical Cabernet Sauvignon Wine." Journal of AOAC INTERNATIONAL 102, no. 4 (2019): 1174–80. http://dx.doi.org/10.5740/jaoacint.18-0327.

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Abstract Background: Cabernet Sauvignon wine enjoys large market in China, and its adulteration has become a well-known problem and challenge. Objective: This study aims to evaluate the capabilities of multiple techniques, including headspace–solid-phase microextraction–GC-MS (HS-SPME-GC-MS), electronic tongue (E-tongue) spectroscopy, mid-infrared (MIR) spectroscopy, and near-infrared (NIR) spectroscopy, to differentiate this popular imported wine in China. Methods: MIR spectroscopy, NIR spectroscopy, E-tongue spectroscopy, and HS-SPME-GC-MS were used. Multivariate analysis techniques were app
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Hanková, Mariana, and Helena Čížková. "Sensory active substances causing off-odour in liquid whey during storage." Potravinarstvo Slovak Journal of Food Sciences 14 (September 28, 2020): 729–34. http://dx.doi.org/10.5219/1324.

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Liquid whey is a nutritious product with high water activity and neutral pH. Therefore, it is very susceptible to microbiological spoilage that results in undesirable off-odors. Additionally, minimally processed foods are the recent trend so setting an appropriate shelf life is essential. The commonly used microbiological methods are lengthy and time-demanding, so a quick and early identification of microbial degradation would be a significant benefit. Here we tested a solid-phase microextraction, gas chromatography with mass spectrometry coupled with olfactometry analysis (SPME-GC-MS/O) on sa
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