Relevant bibliographies by topics / SPME methods

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'SPME methods'

Author: Grafiati
Published: 3 June 2025
Last updated: 1 August 2025

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Journal articles on the topic "SPME methods"

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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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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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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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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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Dissertations / Theses on the topic "SPME methods"

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Joshi-Kumar, Monica. "Headspace Analysis of Smokeless Powders: Development of Mass Calibration Methods using Microdrop Printing for Chromatographic and Ion Mobility Spectrometric Detection." FIU Digital Commons, 2010. http://digitalcommons.fiu.edu/etd/150.

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Smokeless powder additives are usually detected by their extraction from post-blast residues or unburned powder particles followed by analysis using chromatographic techniques. This work presents the first comprehensive study of the detection of the volatile and semi-volatile additives of smokeless powders using solid phase microextraction (SPME) as a sampling and pre-concentration technique. Seventy smokeless powders were studied using laboratory based chromatography techniques and a field deployable ion mobility spectrometer (IMS). The detection of diphenylamine, ethyl and methyl centralite,
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Kloskowski, Adam. "Improved methods for enrichment of organic ultra trace components for analysis by gas chromatography." Licentiate thesis, KTH, Chemistry, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1661.

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<p>This thesis describes some new methods for analysis oforganic trace components from air and water by gaschromatography. The work is particularly focused on thedevelopment of new technologies for analyte enrichment, usingsorbent-based concepts. Short lengths of open tubular columnswere examined for their potential use as denuders.Polydimethylsiloxane-based stationary phases as well as anadsorbent-based column were evaluated in an equilibrium mode oftrapping. For the analytes selected, detection levels in theppb range were obtained (Paper I).</p><p>A new, fully automated set-up for analysis o
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Jabali, Yasmine. "Development of analytical methods of the contamination of water by PAHs and pesticides along the Basin of "Abou Ali" River in North Lebanon." Thesis, Strasbourg, 2017. http://www.theses.fr/2017STRAF068/document.

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La pollution de l'eau est l'une des menaces écologiques les plus sérieuses au niveau des pays industrialisés et des pays en cours de développement. Les polluants sont rejetés directement ou indirectement dans les ressources en eau telles que les rivières, les lacs, les aquifères et les eaux côtières sans prétraitement approprié ; transformant ainsi nos systèmes aquatiques en un dépotoir fortement pollué par des contaminants toxiques et persistants tels que les contaminants organiques. Les hydrocarbures Aromatiques Polycycliques (HAPs) et les pesticides sont parmi les polluants organiques les p
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Tollbäck, Johanna. "New methods for determination of airborne pollutants : Focus on tetrabromobisphenol A, organophosphate triesters and polycyclic aromatic hydrocarbons." Doctoral thesis, Stockholms universitet, Institutionen för analytisk kemi, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-26700.

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The work presented in this thesis concerns the development and evaluation of new methods of sampling and analysis of organic pollutants in the indoor and outdoor environment. In Paper I, the development of a new method was reported for the determination of the brominated flame retardant tetrabromobisphenol A (TBBPA) in air using sampling with glass fiber filter and polyurethane foam (PUF), ultrasonic solvent extraction and liquid chromatography coupled to electrospray ionisation mass spectrometry (LC-ESI/MS). The MS fragmentation mechanism of TBBPA was thoroughly investigated and different acq
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Burman, Lina. "Chromatography and extraction techniques for new evaluation methods of polyolefins long-term performance." Doctoral thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-219.

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Zorn, Eva-Christina. "Methoden der spurenanalytischen Bestimmung von Estrogenen im Abwasser." Doctoral thesis, [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=969411871.

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Elemia, Freire Constancia Felise, Simon Edin, and Chang Ho Lee. "SPME Method for Chemical Analysis of Heavy Organic Trace Compounds in Synthesis Gas." Thesis, KTH, Skolan för kemi, bioteknologi och hälsa (CBH), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277054.

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There currently exists no commercialized method for rapid sampling and analysis of trace tar ingas streams. Solid phase microextraction (SPME) with a polydimethylsiloxane (PDMS) solidphase has been previously investigated as a possible candidate due to its solvent-free natureand reusability. This project set out to deliver a proof of concept study to test whether SPMEcan be sufficiently tuned to analyse trace tar content in syngas below the concentration of 0.1mg/Nm 3 . Due to complications that arose from the Covid-19 pandemic, it was unfeasible tocarry out the practical elements of the proje
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Sibali, LL, JO Okonkwo, and C. Zvinowanda. "Determination of DDT and Metabolites in Surface Water and Sediment Using LLE, SPE, ACE and SE." Springer Science, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001502.

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Abstract Surface water and sediment samples collected from Jukskei River in South Africa, were subjected to different extraction techniques, liquid–liquid (LLE), solidphase extraction (SPE), activated carbon extraction (ACE) and soxhlet extraction (SE) for sediment. The samples were extracted with dichloromethane, cleaned in a silica gel column and the extracts quantified using a Varian 3800 GC-ECD. The percentage recovery test for 2,40DDT, DDE and DDD and 4,40DDT, DDE and DDD in water ranged from 80%–96% and 76%–95% (LLE); 56%–76% and 56%–70% (SPE) and 75%–84% (ACE), respectively; while that
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Euterpio, Maria Anna. "Development of selective materials and methods for analytical techniques combined with mass spectrometry." Doctoral thesis, Universita degli studi di Salerno, 2015. http://hdl.handle.net/10556/1986.

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2011 - 2012<br>Mass spectrometry (MS) is a powerful detection technique that has become very important in several chemical disciplines for detection of both small molecules (environmental pollutants, small metabolites) and large biomolecules (proteins, peptides). The "heart" of the mass spectrometer is the analyzer, that uses electrical or magnetic fields, or combination of both, from the region where they are produced, to a detector, where they produce a signal which is amplified. This element separates the gas phase ions according to their m/z (mass to charge ratio) value. MS is mostly used
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Breitenmoser, Sabina. "Evaluation and implementation of neural brain activity detection methods for fMRI." Thesis, Linköping University, Department of Biomedical Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-3069.

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<p>Functional Magnetic Resonance Imaging (fMRI) is a neuroimaging technique used to study brain functionality to enhance our understanding of the brain. This technique is based on MRI, a painless, noninvasive image acquisition method without harmful radiation. Small local blood oxygenation changes which are reflected as small intensity changes in the MR images are utilized to locate the active brain areas. Radio frequency pulses and a strong static magnetic field are used to measure the correlation between the physical changes in the brain and the mental functioning during the performance of c
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Books on the topic "SPME methods"

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A, Macleod H., Langenbeck Peter, European Physical Society, et al., eds. In-process optical measurements and industrial methods: 14-15 March 1990, the Hague, the Netherlands : proceedings, ECO3, the congress of EPS--European Physical Society, Europtica--the European Federation for Applied Optics, SPIE--the International Society for Optical Engineering. SPIE, 1990.

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Multimodal Biomedical Imaging (Proceedings of Spie). Society of Photo Optical, 2006.

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Matrix Methods for Optical Layout (SPIE Tutorial Text Vol. TT77). SPIE Publications, 2007.

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Giles, Michael K. Advanced Wavefront Control: Methods, Devices, and Applications 4 (Proceedings of SPIE). Society of Photo Optical, 2006.

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Struijker Boudier. Moed of methode. Datawyse / Universitaire Pers Maastricht, 1999. http://dx.doi.org/10.26481/spe.19990910hsb.

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Harding, Kevin G. Two- and Three-dimensional Methods for Inspection and Metrology (SPIE Conference Proceedings). SPIE-International Society for Optical Engine, 2005.

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Piprek, Joachim. Optoelectronic Devices: Physics, Fabrication, Application II (SPIE Conference Proceedings). SPIE-International Society for Optical Engine, 2005.

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Photonics Asia 2004: Information Technologies (Proceedings of Spie on CD-ROM). SPIE-International Society for Optical Engine, 2005.

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Nanobiophotonics and Biomedical Applications III: Vol. 6095 (Proceedings of SPIE). Society of Photo Optical, 2006.

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Driggers, Ronald G., and Richard H. Vollmerhausen. Analysis of Sampled Imaging Systems (SPIE Tutorial Texts in Optical Engineering Vol. TT39). SPIE Publications, 2000.

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Book chapters on the topic "SPME methods"

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Zhang, Shucha, and Daniel Raftery. "Headspace SPME-GC-MS Metabolomics Analysis of Urinary Volatile Organic Compounds (VOCs)." In Methods in Molecular Biology. Springer New York, 2014. http://dx.doi.org/10.1007/978-1-4939-1258-2_17.

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Bondarenko, S., J. Gan, and F. Spurlock. "Solid-Phase Microextraction (SPME) Methods to Measure Bioavailable Concentrations in Sediment." In ACS Symposium Series. American Chemical Society, 2008. http://dx.doi.org/10.1021/bk-2008-0991.ch008.

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Hunter, Wesley, Weichun Yang, Frank Spurlock, and Jay Gan. "Solid-Phase Microextraction (SPME) Methods to Measure Bioavailable Concentrations in Surface Waters." In ACS Symposium Series. American Chemical Society, 2008. http://dx.doi.org/10.1021/bk-2008-0991.ch007.

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Gupta, Prateek, Ajayakumar Jaya Dhanya, Rameshwar Sharma, and Yellamaraju Sreelakshmi. "Identification of Volatiles in Tomato Fruit Using Headspace Solid-Phase-Micro-Extraction (HS-SPME) Coupled with Gas Chromatography-Mass Spectrometry (GC-MS)." In Methods in Molecular Biology. Springer US, 2024. http://dx.doi.org/10.1007/978-1-0716-3782-1_3.

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Li, Frederick, and Brian Musselman. "High-Throughput Extraction and Detection of Drugs in Urine: Parallel Sampling with Solid-Phase Microextraction (SPME) Fibers Coupled with Direct Analysis in Real Time-Mass Spectrometry (DART-MS) Detection." In Methods in Molecular Biology. Springer New York, 2018. http://dx.doi.org/10.1007/978-1-4939-8579-1_9.

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Alcaraz, Armando, and Brian D. Andresen. "Rapid Screening Methods to Isolate Proliferation Related Compounds from Suspect Samples Utilizing Solid Phase Microextraction (SPME) Technology." In Environmental Aspects of Converting CW Facilities to Peaceful Purposes. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0508-1_9.

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Radamson, Henry H., and Ilja Sychugov. "Scanning Probe Microscopies (SPMs)." In Analytical Methods and Instruments for Micro- and Nanomaterials. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-26434-4_8.

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Xie, Biwei, Zhen Jia, and Yungang Bao. "Benchmarking SpMV Methods on Many-Core Platforms." In Benchmarking, Measuring, and Optimizing. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-32813-9_19.

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Frommer, Jane E. "Imaging Chemical Bonds by SPM." In Forces in Scanning Probe Methods. Springer Netherlands, 1995. http://dx.doi.org/10.1007/978-94-011-0049-6_53.

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Dziomba, T., L. Koenders, and G. Wilkening. "Towards a Guideline for SPM Calibration." In Nanoscale Calibration Standards and Methods. Wiley-VCH Verlag GmbH & Co. KGaA, 2006. http://dx.doi.org/10.1002/3527606661.ch13.

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Conference papers on the topic "SPME methods"

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Yan, Chen, Boyu Diao, Hangda Liu, Zhulin An, and Yongjun Xu. "A Nonlinear Hash-Based Optimization Method for SpMV on GPUs." In 2025 IEEE 25th International Symposium on Cluster, Cloud and Internet Computing (CCGrid). IEEE, 2025. https://doi.org/10.1109/ccgrid64434.2025.00053.

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Liang, Hao, Qiang Li, Jiahao Wang, and Ruocheng Zeng. "SPM Propagation Model Calibration Method and Applicability Analysis." In 2024 4th International Conference on Electronic Information Engineering and Computer Communication (EIECC). IEEE, 2024. https://doi.org/10.1109/eiecc64539.2024.10929250.

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Alghamdi, Talal M. "On-Site Sampling and Determination of Aliphatic Amines in Industrial Waste Water Using Solid Phase Microextraction (SPME)." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3935.

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Abstract Amine-based corrosion inhibitors are added to the crude oil streams to protect the pipelines from corrosive attacks by oxygen. Amine residuals should be monitored in the system and this is classically done by liquid-liquid extraction (LLE) of amines followed by colorimetric determination using spectrophotometry. Solid phase microextraction (SPME), a novel extraction technique, was used as a sample preparation technique to isolate the amines from the complex sample matrix and gas chromatography (GC) system was used for separation and quantification of amines. A flow-through system was
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Miswar, Hidayat, Ave Suhendra Suhaili, Abdul Rahim Risal, Nurul Husna Othman, and Nik Nor Azrizam Nik Norizam. "Investigation of Single Point Mooring Anchor Chain Corrosion Rate for Different Rate of Salinity in Malaysia Waters." In CONFERENCE 2025. AMPP, 2025. https://doi.org/10.5006/c2025-00453.

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Abstract This research study investigates the corrosion of Single Point Mooring (SPM) anchor chains in various Malaysian saline waters, aiming to understand its impact on marine structures. Corrosion in these environments accelerates the degradation of materials, threatening structural integrity and safety, and leading to higher maintenance costs and potential operational failures. The research employed both gravimetric and electrochemical methods to measure corrosion rates. In the gravimetric method, anchor chain samples were immersed in saline water from Sabah, Sarawak, and Peninsular Malays
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Gao, Zhenyu, Donghuan Xie, Qingjie Lang, Ruoxi Wang, Li Shen, and Junsheng Chang. "A General Optimization Method for SpMV Based on Graph Partitioning and Matrix Reordering." In 2025 4th International Symposium on Computer Applications and Information Technology (ISCAIT). IEEE, 2025. https://doi.org/10.1109/iscait64916.2025.11010635.

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"Direct SPME GC-MS determination of volatile congeners in wines without sample pre-treatment." In Short communications - Oenology, methods of analysis. International Viticulture and Enology Society, 2024. https://doi.org/10.58233/ljfegjca.

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Linderborg, Kaisa, Annelie Damerau, and Eija Ahonen. "Stability of omega-3 fatty acids in different lipid forms analyzed by SPME-GC-MS, NMR and loss of antioxidants." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/gqky3982.

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The dietary intake of marine foods is globally inadequate, and thus supplements with long-chain omega-3 fatty acids are widely used. Both the source and processing choices affect the lipid class (most typically triacylglycerols (TAGs), ethyl esters (EEs), or phospholipids (PLs)) in which docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) are present, and thus consumed.Here we present investigation of the effect of lipid type on oxidation by the analysis of oxidation products of commercial supplements including EPA and DHA in different lipid forms, as well as results of an oxidation tri
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Mohaghegh, Fazlolah, and H. S. Udaykumar. "Efficiency of Diffuse and Sharp Interface Strongly Coupled Fluid Structure Interaction Methods in Fixed and Moving Boundaries." In ASME 2016 Fluids Engineering Division Summer Meeting collocated with the ASME 2016 Heat Transfer Summer Conference and the ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fedsm2016-7668.

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Efficiency of different types of immersed boundary methods in the fluid structure interaction (FSI) analysis is studied for different cases. Two different formulations of smoothed profile method (SPM) [1, 2] as diffuse interface approaches are compared with the ghost fluid method (GFM) [3, 4] as sharp interface method (SIM) [5]. First, the original SPM which has two pressure Poisson equations (SPM2P) is modified to a novel formulation for SPM with only one pressure Poisson equation (SPM1P) and then validated. The efficiency study is performed for SPM1P, SPM2P and SIM. The results show that whe
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Mascrez, Steve, and Giorgia Purcaro. "Enhance HS-SPME Extraction Kinetics by Vacuum-assisted Headspace and Multi-cumulative Trapping SPME and the Combination of Them for Olive Oil Volatile Profiling." In 2022 AOCS Annual Meeting & Expo. American Oil Chemists' Society (AOCS), 2022. http://dx.doi.org/10.21748/zgek9601.

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Headspace solid-phase microextraction (HS-SPME) is a solvent-free sample preparation method widely applied in many fields of applications. This extraction technique is based on the equilibrium between a three-phase system, i.e., sample-headspace-fiber. The required time to reach the equilibrium is not compatible with a large number of samples. Therefore, a compromise between sensitivity and extraction time is usually needed. Two different approaches have been recently proposed to improve the extraction kinetics, namely vacuum-assisted HS-SPME (Vac-HS-SPME) and multi-cumulative trapping SPME (M
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Li, Yiyuan, Tong Che, Yezhen Wang, Zhengbao Jiang, Caiming Xiong, and Snigdha Chaturvedi. "SPE: Symmetrical Prompt Enhancement for Fact Probing." In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing. Association for Computational Linguistics, 2022. http://dx.doi.org/10.18653/v1/2022.emnlp-main.803.

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Reports on the topic "SPME methods"

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Crouch, Rebecca, Jared Smith, Bobbi Stromer, et al. Preparative, extraction, and analytical methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil or sediment, and tissue matrices. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41480.

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No standard method exists for determining levels of insensitive munition (IM) compounds in environmental matrices. This project resulted in new methods of extraction, analytical separation and quantitation of 17 legacy and 7 IM compounds, daughter products of IM, and other munition compounds absent from USEPA Method 8330B. Extraction methods were developed for aqueous (direct-injection and solid-phase extraction [SPE]), soil, sediment, and tissue samples using laboratory-spiked samples. Aqueous methods were tested on 5 water sources, with 23 of 24 compounds recovered within DoD QSM Ver5.2 limi
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Gong, Mengyan, and Dustin Poppendieck. Measurement of SVOC emission parameters for building materials using solid-phase microextraction (SPME)-based method. National Institute of Standards and Technology, 2019. http://dx.doi.org/10.6028/nist.tn.2040.

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Lehotay, Steven J., and Aviv Amirav. Fast, practical, and effective approach for the analysis of hazardous chemicals in the food supply. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7695587.bard.

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Background to the topic: For food safety and security reasons, hundreds of pesticides, veterinary drugs, and environmental pollutants should be monitored in the food supply, but current methods are too time-consuming, laborious, and expensive. As a result, only a tiny fraction of the food is tested for a limited number of contaminants. Original proposal objectives: Our main original goal was to develop fast, practical, and effective new approaches for the analysis of hazardous chemicals in the food supply. We proposed to extend the QuEChERS approach to more pesticides, veterinary drugs and pol
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Conrady, Morgan, Markus Bauer, Kyoo Jo, Donald Cropek, and Ryan Busby. Solid-phase microextraction (SPME) for determination of geosmin and 2-methylisoborneol in volatile emissions from soil disturbance. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42289.

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A method is described here for the concentration and determination of geosmin and 2-methylisoborneol (2-MIB) from the gaseous phase, with translation to field collection and quantification from soil disturbances in situ. The method is based on the use of solid-phase microextraction (SPME) fibers for adsorption of volatile chemicals from the vapor phase, followed by desorption into a gas chromatograph-mass spectrometer (GC-MS) for analysis. The use of a SPME fiber allows simple introduction to the GC-MS without further sample preparation. Several fiber sorbent types were studied and the 50/30 μ
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Schultz-Fellenz, Emily S. Surface Signature Characterization at SPE through Ground-Proximal Methods: Methodology Change and Technical Justification. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1214620.

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Crouch, Rebecca, Jared Smith, Bobbi Stromer, et al. Methods for simultaneous determination of legacy and insensitive munition (IM) constituents in aqueous, soil/sediment, and tissue matrices. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41720.

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Currently, no standard method exists for analyzing insensitive munition (IM) compounds in environmental matrices, with or without concurrent legacy munition compounds, resulting in potentially inaccurate determinations. The primary objective of this work was to develop new methods of extraction, pre-concentration, and analytical separation/quantitation of 17 legacy munition compounds along with several additional IM compounds, IM breakdown products, and other munition compounds that are not currently included in U.S. Environmental Protection Agency (EPA) Method 8330B. Analytical methods were d
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Larmat, Carene, and Howard John Patton. Study of Rg wave amplitude for SPE series using zero-mean stacking method. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1487344.

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Darling, Arthur H., Diego J. Rodríguez, Clifford S. Russell, and William J. Vaughan. Willingness to Pay: Referendum Contingent Valuation and Uncertain Project Benefits. Inter-American Development Bank, 1999. http://dx.doi.org/10.18235/0008879.

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This study uses contingent valuation (CV) methods to estimate the benefit of an environmental water quality project of the Tietê River and its tributaries that flow through the São Paulo, Brazil, Metropolitan Area (SPMA). This paper demonstrates the range alternative central tendency measures for WTP produced under alternative parametric and nonparametric approaches using data gathered from a recent referendum CV survey that was conducted in Brazil to analyze a large, multi-phase water quality improvement project. It explains why one of the most commonly used measures, the unrestricted mean of
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Wright, Daniel. Testing and Characterizing a Novel Sampling Method for Aerosols: Application of SPE for Oxidized Gas-Phase Compounds. Portland State University Library, 2015. http://dx.doi.org/10.15760/honors.170.

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Wu, Bin, Lixia Guo, Kaikai Zhen, and Chao Sun. Diagnostic and prognostic value of miRNAs in hepatoblastoma: A systematic review with meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2021. http://dx.doi.org/10.37766/inplasy2021.11.0045.

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Review question / Objective: Background and aim: Increasing evidence has revealed the valuable diagnostic and prognostic applications of dysregulated microRNAs (miRNAs) in hepatoblastoma (HB), the most common hepatic malignancy during childhood. However, these results are inconsistent and remain to be elucidated. In the present study, we aimed to systematically compile up-to-date information regarding the clinical value of miRNAs in HB. Methods: Articles concerning the diagnostic and prognostic value of single miRNAs for HB were searched from databases. The sensitivity (SEN), specificity (SPE)
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