Results 21 to 30 of about 176,180 (101)

Recent progress on the detection of animal-derived food stimulants using mass spectrometry-based techniques

Frontiers in Nutrition, 2023
BackgroundThe misuse of animal-derived stimulants in food is becoming increasingly common, and mass spectrometry (MS) is used extensively for their detection and analysis.
Qiang Zhang, Hongying Du, Yingjian Zhang
doaj   +1 more source

Duvatrienediols in cuticular wax of Burley tobacco leaves

Journal of Lipid Research, 1976
4, 8, 13-Duvatriene-1, 3-diol diastereoisomers have been identified in the cuticular wax of fresh Burley tobacco leaves. Their structures were determined by gas-liquid chromatography, mass spectrometry, and infrared and ultraviolet spectroscopy ...
S Y Chang, C Grunwald
doaj   +1 more source

Pots and lipids: molecular and isotope evidence of the food processing at Maharski prekop

Documenta Praehistorica, 2012
The pottery assemblage from the Maharski prekop site was analysed to obtain insights into vessel use and husbandry practices. Total lipid extracts of pottery samples were subjected to gas chromatography (GC), gas chromatography–mass spectrometry (GC–MS),
Nives Ogrinc, Marinka Gams Petrišič, Dušan Žigon, Andreja Žibrat Gašparič, Mihael Budja   +4 more
doaj   +1 more source

Ammonia gas: an improved reagent for chemical ionization mass spectrometry of bile acid methyl ester acetates

Journal of Lipid Research, 1981
The ammonia chemical ionization mass spectra of 28 methyl ester acetate derivatives of bile acids and related compounds have been determined by gas-liquid chromatography-mass spectrometry.
B R DeMark, P D Klein
doaj   +1 more source

MOESM1 of Optimized method for determination of 16 FDA polycyclic aromatic hydrocarbons (PAHs) in mainstream cigarette smoke by gas chromatographyâ mass spectrometry

, 2018
Additional file 1. Details of the chemical standards used for the analysis; MS acquisition parameters for all three GC/MS systems, PAH levels in blank samples together with their respective Limits of Detection (LODs) and Limits of Quantification (LOQs) as well as repeatability and accuracy of fortified Quality Control (QC) samples.
Jeffery, Jana, Carradus, Maria, Songin, Karolina, Pettit, Michael, Pettit, Karl, Wright, Christopher   +5 more
openaire   +1 more source

MOESM1 of Steam distillation/drop-by-drop extraction with gas chromatographyâ mass spectrometry for fast determination of volatile components in jujube (Ziziphus jujuba Mill.) extract

, 2017
Additional file 1. Data about the performance of the SDE method.
Shi-Hao Sun, Guo-Bi Chai, Li, Peng, Xie, Jian-Ping, Su, Yue   +4 more
openaire   +1 more source

Mechanistic Insights into Alzheimer’s Disease Unveiled through the Investigation of Disturbances in Central Metabolites and Metabolic Pathways

Biomedicines, 2021
Hydrophilic metabolites are closely involved in multiple primary metabolic pathways and, consequently, play an essential role in the onset and progression of multifactorial human disorders, such as Alzheimer’s disease.
Raúl González-Domínguez, Álvaro González-Domínguez, Ana Sayago, Juan Diego González-Sanz, Alfonso María Lechuga-Sancho, Ángeles Fernández-Recamales   +5 more
doaj   +1 more source

Lipids, pots and food processing at Hočevarica, Ljubljansko barje, Slovenia

Documenta Praehistorica, 2014
 The paper presents the results of lipid analyses of pottery samples from Ho≠evarica (Ljub- ljansko barje, Slovenia). Total lipid extracts were subjected to high temperature gas chromatography (HT-GC), gas chromatography-mass spectrometry (GC-MS) and ...
Nives Ogrinc, Mihael Budja, Doris Potočnik, Andreja Žibrat Gašparič, Dimitrij Mlekuž   +4 more
doaj   +1 more source

Data on the optimization of a GC–MS procedure for the determination of total plasma myo-inositol

Data in Brief, 2016
Myo-inositol (MI) is one of the stereoisomers of hexahydroxycyclohexane, which plays an important role in intracellular signal pathway. Derivatization is an indispensable step in both external and internal standard method during the chromatography-mass ...
Jin Guo, Yingfei Shi, Chengbao Xu, Rugang Zhong, Feng Zhang, Bo Niu, Jianhua Wang, Ting Zhang   +7 more
doaj   +1 more source

Analysis of Volatile Flavor Compounds of Corn Under Different Treatments by GC-MS and GC-IMS

Frontiers in Chemistry, 2022
To establish a rapid and accurate method for detecting volatile components of corn, which will guide the production of corn products beloved by consumers.
Kangyi Zhang, Lingling Gao, Can Zhang, Tao Feng, Haining Zhuang   +4 more
doaj   +1 more source