Diagnosis of Methyl Malonicaciduria from 2013 to 2018 by Alina Concepción Álvarez, Ivette Camayd Viera, Norma Elena de León Ojeda, Alina García García, Laritza Martínez Rey, Daniel Quintana Hernández

“…The identification of methylmalonic acid was performed by gas chromatography / mass spectrometry, while the homocysteine quantification by high performance liquid chromatography. …”
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Characteristics and microscopic mechanisms of smoke emissions of OMMT/SBS-modified asphalt by Wanhong Yang, Zhenghao Zhang, Xiaolong Yang, Xiaofan Jia, Yixin Jiang

“…The smoke suppression performance of asphalt can be substantially improved using organic nano-montmorillonite (OMMT)/styrene–butadiene–styrene (SBS) block modifiers. Pyrolysis gas chromatography–mass spectrometry (PY-GC–MS), fluorescence microscopy (FM), thermogravimetric analysis (TG), and gel permeation chromatography (GPC) were used to explore the characteristics and microscopic mechanisms of flue gas emissions. …”
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Field Dissipation and Storage Stability of Glufosinate Ammonium and Its Metabolites in Soil by Yun Zhang, Kai Wang, Junxue Wu, Hongyan Zhang

“…The derivatives were quantified by gas chromatography (GC) using a flame photometric detector (FPD). …”
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Mechanism of Action of Lacticaseibacillus paracasei HNU502 and Fecal Microbiota Transplantation in Alleviating Antibiotic Side Effects by CHEN Lin, LI Ao, LI Jiahe, ZHANG Zeng, ZHANG Jiachao

“…In this study, the mechanism of action of FMT and the probiotic Lacticaseibacillus paracasei HNU502 in alleviating the side effects of cefotaxime, a common antibiotic, using combination of metagenomics, pathological analysis and gas chromatography. The findings suggested that FMT alleviated antibiotic side effects by restoring the disturbed gut microbiota, while HNU502 worked by reestablishing the balance of the gut microbiota. …”
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Correlation of Volatile Compounds and Sensory Attributes of Chinese Traditional Sweet Fermented Flour Pastes Using Hierarchical Cluster Analysis and Partial Least Squares-Discrimin... by Meigui Huang, Yulin Li, Ping Zhan, Ping Liu, Honglei Tian, Jie Fan

“…Ninety-six volatile compounds were detected using solid-phase microextraction gas chromatography mass spectrometry. Hierarchical cluster analysis grouped SFFPs into three clusters according to their concentrations and compositions of volatile components. …”
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The Pyrolytic Profile of Lyophilized and Deep-Frozen Compact Part of the Human Bone by Jolanta Lodowska, Daniel Wolny, Sławomir Kurkiewicz, Ludmiła Węglarz

“…Samples of preserved bone tissue were subjected to thermolysis and tetrahydroammonium-hydroxide- (TMAH-) associated thermochemolysis coupled with gas chromatography and mass spectrometry (Py-GC/MS). Results. …”
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Amphetamine Positive Urine Toxicology Screen Secondary to Atomoxetine by Joshua L. Fenderson, Amy N. Stratton, Jennifer S. Domingo, Gerald O. Matthews, Christopher D. Tan

“…Results were positive for amphetamines; however, the presence of these substances could not be confirmed with urine gas chromatography-mass spectrometry (GC-MS). She denied any illicit drug use, herbal medications, or supplements, and her other prescription medications have not been previously known to cause a false-positive result for amphetamines. …”
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Methods of forensic examination of Nalbuphine by I. О. Besedina

“…The article analyses the peculiarities of sampling and sample preparation, the main stages of chemical research of this potentially dangerous opioid using thin-layer chromatography, infrared spectroscopy, gas chromatography with a mass-selective detector. It is emphasised that the experimental data presented in the article will help in choosing the most appropriate methods and conditions for the study of nalbuphine, and will allow an objective assessment of the results of expert research.…”
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Antioxidant and Antibacterial Activities of the Essential Oil of Moroccan Tetraclinis articulata (Vahl) Masters by Halima Rabib, Chaimaa Elagdi, Mohammed Hsaine, Hassan Fougrach, Tayeb Koussa, Wadi Badri

“…The analysis of the major compounds of essential oil was performed by gas chromatography and mass spectrometry, and this oil is dominated by bornyl acetate (35.05%), camphor (11.17%), and α-pinene (10.84%). …”
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Colorimetric, chemical, and genetic characterization of purple garlic in two producing regions in Brazil by Dalvan Carlos Beise, Ana Kelly de Sousa Silva, Suelen Martinez Guterres, Caroline Bedin Zanatta, Ketlin Schneider, Amanda Venturi Corrêa de Almeida, Volni Mazzuco, Cristian Soldi, Leocir José Welter, Valdir Marcos Stefenon

“…The color of the bulbils was determined through colorimetric analysis, the volatile compounds were characterized by solid phase micro-extraction and gas chromatography, and the genetic diversity was analyzed using microsatellite markers. …”
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Comparison of Three Solid Phase Materials for the Extraction of Carboxylic Acids from River Water Followed by 2D GC × GC-TOFMS Determination by G. O. Bosire, J. C. Ngila, H. Parshotam

“…Three solid phase extraction (SPE) sorbents were used and their extraction efficiencies evaluated after chromatographic determinations (using gas chromatography with a time of flight mass spectrometer (GC × GC-TOFMS) and liquid chromatography with organic carbon detector (LC-OCD)). …”
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Classification and determination of the tobacco raw materials authenticity during the forensic examination by S. A. Trofimets

“…Modern methods of analysis are presented, in particular, instrumental methods used to establish quality and safety indicators (visual inspection, microscopic analysis, chemical analysis, physicochemical methods, gas chromatography and mass spectrometry, spectral analysis). …”
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Assessing the Ecological Risk of Polycyclic Aromatic Hydrocarbons in Sediments at Langkawi Island, Malaysia by Essam Nasher, Lee Yook Heng, Zuriati Zakaria, Salmijah Surif

“…Ten samples were collected from jetties and fish farms around the island in December 2010. A gas chromatography/flame ionization detector (GC/FID) was used to analyse the 18 PAHs. …”
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Characteristic of volatile flavor compounds in ‘Fengtangli’ plum (Prunus salicina Lindl.) were explored based on GC×GC-TOF MS by Xianfeng Hu, Deyan Li, Yi Ding, Yubo Zhang, Chunguang Ren

“…The purpose of this study was to explore the characteristics of volatile flavor compounds in ‘Fengtangli’ plum.MethodsThe flavor compounds of both ‘Fengtangli’ and ‘Siyueli’ plums were analyzed using comprehensive two-dimensional gas chromatography time-of-flight mass spectrometry (GC×GC-TOF MS).ResultsThe results revealed the presence of 495 volatile flavor compounds in ‘Fengtangli’ plum and 466 in ‘Siyueli’ plum. …”
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Potential for biogas production from the anaerobic digestion of chicken droppings in Morocco by Ouahid Elasri, Mohamed El Amin Afilal

“…The biogas production is measured by manometer, and the composition of this biogas is analyzed by gas chromatography. Results The chicken droppings without pretreatment generated a small amount of biogas (11.24 and 20 m3 for one ton of waste fresh) in the laboratory and in the prototype digester. …”
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Diversity of 4-Chloro-2-nitrophenol-Degrading Bacteria in a Waste Water Sample by Pankaj Kumar Arora, Alok Srivastava, Vijay Pal Singh

“…Furthermore, one bacterium, Bacillus aryabhattai strain PC-7, was able to decolorize 4C2NP up to a concentration of 2.0 mM. Gas chromatography-mass spectrometry analysis identified 5-chloro-2-methylbenzoxazole as the final product of 4C2NP decolorization in strain PC-7.…”
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Antiplasmodial Properties and Bioassay-Guided Fractionation of Ethyl Acetate Extracts from Carica papaya Leaves by Paula Melariri, William Campbell, Paschal Etusim, Peter Smith

“…Carica papaya ethyl acetate extract was subjected to bioassay-guided fractionation to ascertain the most active fraction, which was purified and identified using high-pressure liquid chromatography (HPLC) and GC-MS (Gas chromatography-Mass spectrometry) methods. Linoleic and linolenic acids identified from the ethyl acetate fraction showed IC50 of 6.88 μg/ml and 3.58 μg/ml, respectively. …”
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Chemical profiling, antioxidant, and antimicrobial activities of the essential oil of Matricaria recutita (Chamomile) by Ram Prasad Baral, Rameshwar Adhikari, Achyut Adhikari

“…This research focuses on extracting essential oil through hydro-distillation, followed by Gas Chromatography-Mass Spectroscopy (GC-MS) to identify its chemical constituents and antioxidant and antimicrobial activities against bacteria and fungi responsible for common skin infections. …”
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Geographical origin discrimination of Chenpi using machine learning and enhanced mid-level data fusion by Xin Kang Li, Li Jun Tang, Ze Ying Li, Dian Qiu, Zhuo Ling Yang, Xiao Yi Zhang, Xiang-Zhi Zhang, Jing Jing Guo, Bao Qiong Li

“…Thirty-nine samples from eight regions in Xinhui district (Guangdong, China) are analyzed by gas chromatography (GC) and mid-infrared (MIR) technique. …”
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Salivary Metabolomics Fingerprint of Chronic Apical Abscess with Sinus Tract: A Pilot Study by Noemi Montis, Elisabetta Cotti, Antonio Noto, Claudia Fattuoni, Luigi Barberini

“…Metabolomic profiles were obtained using a gas chromatography/mass spectrometry instrument. Subsequently, in order to compare the two groups, a multivariate statistical model was built that resulted to be statistically significant. …”
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