Relevant bibliographies by topics / Indole GC-MS Analysis

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Academic literature on the topic 'Indole GC-MS Analysis'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Indole GC-MS Analysis"

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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Kalyan Kumar Sethi, and Snehasis Jana. "Isotopic Abundance Ratio Analysis of Biofield Energy Treated Indole Using Gas Chromatography-Mass Spectrometry." Science Journal of Chemistry 4, no. 4 (2016): 41–48. https://doi.org/10.11648/j.sjc.20160404.11.

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The objective of the current experiment was to evaluate the effect of biofield energy treatment on the isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 15N/14N) in indole using the gas chromatography-mass spectrometry (GC-MS). The sample of organic compound indole was divided into two parts - one part was designated as a control sample (untreated), and another part was considered as biofield energy treated sample, which was subjected to Mr. Trivedi’s biofield energy treatment (The Trivedi Effect®). The biofield energy treated indole sample was analyzed at different time inter
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Trivedi, Mahendra Kumar, Alice Branton, Dahryn Trivedi, Gopal Nayak, Kalyan Kumar Sethi, and Snehasis Jana. "Isotopic Abundance Ratio Analysis of Biofield Energy Treated Indole Using Gas Chromatography-Mass Spectrometry." Science Journal of Chemistry 4, no. 4 (2016): 41–48. https://doi.org/10.5281/zenodo.196928.

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The objective of the current experiment was to evaluate the effect of biofield energy treatment on the isotopic abundance ratio of PM+1/PM (2H/1H or 13C/12C or 15N/14N) in indole using the gas chromatography-mass spectrometry (GC-MS). The sample of organic compound indole was divided into two parts - one part was designated as a control sample (untreated), and another part was considered as biofield energy treated sample, which was subjected to Mr. Trivedi’s biofield energy treatment (The Trivedi Effect®). The biofield energy treated indole sample was analyzed at different time inter
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Gutierrez, Casandra K., George Y. Matsui, David E. Lincoln, and Charles R. Lovell. "Production of the Phytohormone Indole-3-Acetic Acid by Estuarine Species of the Genus Vibrio." Applied and Environmental Microbiology 75, no. 8 (2009): 2253–58. http://dx.doi.org/10.1128/aem.02072-08.

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ABSTRACT Strains of Vibrio spp. isolated from roots of the estuarine grasses Spartina alterniflora and Juncus roemerianus produce the phytohormone indole-3-acetic acid (IAA). The colorimetric Salkowski assay was used for initial screening of IAA production. Gas chromatography-mass spectroscopy (GC-MS) was then employed to confirm and quantify IAA production. The accuracy of IAA quantification by the Salkowski assay was examined by comparison to GC-MS assay values. Indole-3-acetamide, an intermediate in IAA biosynthesis by the indole-3-acetamide pathway, was also identified by GC-MS. Multilocus
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Hou, Zhiwei, Ziyue Chen, Le Li, et al. "Comparison of Volatile Compounds in Jingshan Green Tea Scented with Different Flowers Using GC-IMS and GC-MS Analyses." Foods 13, no. 17 (2024): 2653. http://dx.doi.org/10.3390/foods13172653.

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Scented green tea (Camellia sinensis) is a type of reprocessed green tea produced by scenting with flowers. To investigate the differences in the volatiles of scented green tea processed with four different flowers (Jasminum sambac, Osmanthus fragrans, Michelia alba, and Rosa rugosa), gas chromatography–ion mobility spectrometry (GC–IMS) and gas chromatography–mass spectrometry (GC–MS) were employed to detect and identify the volatile compounds in the four types of scented teas. GC–IMS and GC–MS identified 108 and 101 volatile compounds, respectively. The key characteristic volatile compounds,
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Báez, Disnelys, Diego Morales, and Jorge A. Pino. "Volatiles from Michelia champaca Flower: Comparative analysis by Simultaneous Distillation-Extraction and Solid Phase Microextraction." Natural Product Communications 7, no. 5 (2012): 1934578X1200700. http://dx.doi.org/10.1177/1934578x1200700529.

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The chemical composition of the volatile compounds isolated by simultaneous distillation-extraction (SDE) and headspace-solid phase microextraction (SPME) from flowers of Michelia champaca growing in Cuba was investigated by GC/FID and GC/MS. Sixty-seven and thirty-four components were identified by SDE and SPME, respectively, with 1,8-cineole (22.8%) as the main constituent in the volatile oil isolated by SDE, and methyl benzoate (30.3%), indole (16.6%) and β-elemene (10.4%) the major components detected by SPME.
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Bachliński, Robert, and Agnieszka Mroczek. "Identification of a synthetic cannabinoid 5F-NPB-22 (indazole analog 5F-PB-22) by gas chromatography/mass spectrometry (GC/MS) method." Issues of Forensic Science 293 (2016): 56–67. http://dx.doi.org/10.34836/pk.2016.293.1.

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This article presents the problem of transesterification of a synthetic cannabinoid 5F-NPB-22 and other structurally related indazole and indole-based compounds, such as NPB-22, 5F-PB-22, BB-22 and PB-22, caused by methanol – a solvent commonly applied in gas chromatography/mass spectrometry (GC/MS) analysis. The above process can result in drawing incorrect conclusions about the composition of analyzed product, due to the formation of ester compounds, which mainly affects the reliability of results. In the present study, in addition to the mixture of methanol and toluene, as well toluene alon
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Zhou, Xian Yan, Zhong Feng Zhang, Wan Xi Peng, and Qing Ding Wu. "DT-GC-MS Analysis on Environmental Risk of Poplar Engineering Biocomposites." Advanced Materials Research 129-131 (August 2010): 780–83. http://dx.doi.org/10.4028/www.scientific.net/amr.129-131.780.

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Poplar engineering biocomposites is a new engineering materials. In order to evaluate its potential environmental risk to human, the volatile organic compounds of poplar engineering biocomposites were adsorbed and determined by TD-GC-MS. The result were: (1) The main constituents of volatiles at 40°С were bicyclo[2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)-(31.55%), 1,2-benzenedicarboxylic acid, mono(2-ethylhexyl) ester(14.94%), 2,6,10,14,18,22- tetracosahexaene, 2,6,10,15,19,23-hexamethyl-(7.34%), [1,1':3',1''-terphenyl]-2'-ol(5.97%), cedrol (5.29%), caryophyllene(5.26%), 3-[(1z)-1,3-butadien
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DeRuiter, Jack, Forrest Smith, Younis Abiedalla, Logan Neel, and C. Randall Clark. "GC-MS and GC-IR analysis of regioisomeric cannabinoids related to 1-(5-fluoropentyl)-3-(1-naphthoyl)-indole." Forensic Chemistry 10 (August 2018): 48–57. http://dx.doi.org/10.1016/j.forc.2018.07.005.

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Gould, Oliver, Ben de Lacy Costello, Amy Smart, et al. "Gas Chromatography Mass Spectrometry (GC-MS) Quantification of Metabolites in Stool Using 13C Labelled Compounds." Metabolites 8, no. 4 (2018): 75. http://dx.doi.org/10.3390/metabo8040075.

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It has become increasingly important to qualitatively and quantitatively assess the volatile metabolites in a range of bodily fluids for use in monitoring health. There has been relatively little work on the quantitative analysis of compounds, particularly with respect to the effects of ethnicity or geographic location. A novel method for the quantification of compounds in stool using 13C labelled compounds as internal standards is presented. Using thermal desorption gas chromatography mass spectrometry, stool samples from 38 healthy volunteers were analysed. The 13C labelled compounds, aceton
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Zeng, Lin, Yanqing Fu, Jinshui Huang, et al. "Comparative Analysis of Volatile Compounds in Tieguanyin with Different Types Based on HS–SPME–GC–MS." Foods 11, no. 11 (2022): 1530. http://dx.doi.org/10.3390/foods11111530.

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Tieguanyin (TGY) is one kind of oolong tea that is widely appreciated for its aroma and taste. To study the difference of volatile compounds among different types of TGY and other oolong teas, solid-phase microextraction–gas chromatography–mass spectrometry and chemometrics analysis were conducted in this experiment. Based on variable importance in projection > 1 and aroma character impact > 1, the contents of heptanal (1.60–2.79 μg/L), (E,E)-2,4-heptadienal (34.15–70.68 μg/L), (E)-2-octenal (1.57–2.94 μg/L), indole (48.44–122.21 μg/L), and (E)-nerolidol (32.64–96.63 μg/L) in TGY were hi
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Dissertations / Theses on the topic "Indole GC-MS Analysis"

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Bergh, Caroline. "Organophosphates and phthalates in air and dust from indoor environments : Method development and applied measurements." Doctoral thesis, Stockholms universitet, Institutionen för analytisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-56677.

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Organophosphate and phthalate esters are polymer additives that are frequently found in air and dust in indoor environments. This thesis describes the development and application of air sampling and selective mass spectrometric (MS) determination of these two compound groups. It also describes the sampling and screening of these compounds in indoor air and dust from different environments and the development and evaluation of a method for the extraction and determination of these compounds in indoor dust. An air sampling method previously used for air sampling of only organophosphate esters, i
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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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Raeppel, Caroline. "Evaluation de la contamination des atmosphères intérieures et extérieures induite par les usages non agricoles de pesticides." Phd thesis, Université de Strasbourg, 2012. http://tel.archives-ouvertes.fr/tel-00869960.

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Dans le but d'évaluer la contamination des atmosphères intérieures et extérieures induite par les usages non agricoles de pesticides, deux approches complémentaires ont été mises en oeuvre : l'utilisation de capteurs passifs de type Tenax TA pour réaliser des prélèvements d'air, et l'utilisation de cheveux employés comme biomarqueurs d'exposition. Des campagnes de mesures ont été menées sur plusieurs sites à la suite de traitements de désherbage ou de désinsectisation ainsi quedans des logements. Les échantillons d'air et de cheveux ont été extraits respectivement par thermodésorption et par e
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Lee, Wan-Chen, and 李婉甄. "Analysis of Indoor Microbial Volatile Organic Compounds by Solid-Phase Microextraction with GC/MS under Nonequilibrium Situation." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/99333002681942536652.

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碩士<br>國立臺灣大學<br>環境衛生研究所<br>96<br>More emphasis has been placed on mold in recent years because exposure to indoor mold can cause adverse health effects in human. Microbial Volatile Organic Compounds (MVOCs) are chemicals generated by molds during their life cycle and can be used as markers for mold growth indoors because they can diffuse through building materials which can not be penetrated by mold spores. And positive associations have also been found between the exposures of MVOCs and asthma or allergy. Therefore, the objective of this research was to develop a dynamic sampling method which
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Lee, Wan-Chen. "Analysis of Indoor Microbial Volatile Organic Compounds by Solid-Phase Microextraction with GC/MS under Nonequilibrium Situation." 2008. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2807200815293000.

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Reports on the topic "Indole GC-MS Analysis"

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Beckley, Lila, Thomas McHugh, Kyle Gorder, Erik Dettenmaier, and Ignacio Rivera-Duarte. Use of On-Site GC/MS Analysis to Distinguish Between Vapor Intrusion and Indoor Sources of VOCs. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada606283.

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McHugh, Tom. Use of On-Site GC/MS Analysis to Distinguish between Vapor Intrusion and Indoor Sources of VOC. Defense Technical Information Center, 2013. http://dx.doi.org/10.21236/ada606411.

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