Results 81 to 90 of about 1,649,552 (239)

Applications of Gas Chromatography-Mass Spectrometry to Organic Chemistry [PDF]

, 1971
The work described in this thesis was based on applications of the combined technique of gas chromatography-mass spectrometry (GC-MS) to a variety of topics in organic chemistry and biochemistry.
Middleditch, B. S
core  

AUTHENTICATION OF RATTUS NORVEGICUS FAT AND OTHER ANIMAL FATS USING GAS CHROMATOGRAPHY-MASS SPECTROMETRY (GC-MS) AND PRINCIPAL COMPONENT ANALYSIS (PCA) [PDF]

, 2023
Objective: The objective of this study was to analyze fatty acids using Gas Chromatography-Mass Spectrometry (GC-MS) in combination with chemometric Principal Component Analysis (PCA) for the authentication of Rattus norvegicus fat from other animal fats.
HAMIDI, DACHRIYANUS, LESTARI, DWI, ROHMAN, ABDUL, SYAMSUL, EKA SISWANTO, SYOFYAN, SYOFYAN, WIRNAWATI   +5 more
core   +1 more source

Simultaneous determination of rhamnose, xylitol, arabitol, fructose, glucose, inositol, sucrose, maltose in jujube (Zizyphus jujube Mill.) extract: comparison of HPLC–ELSD, LC–ESI–MS/MS and GC–MS

Chemistry Central Journal, 2016
BackgroundJujube extract is commonly used as a food additive and flavoring. The sensory properties of the extract, especially sweetness, are a critical factor determining the product quality and therefore affecting consumer acceptability. Small molecular
Shihao Sun, Hui Wang, Jianping Xie, Yue Su   +3 more
semanticscholar   +1 more source

Gelechiidae Moths Are Capable of Chemically Dissolving the Pollen of Their Host Plants [PDF]

, 2011
Background: Many insects feed on pollen surface lipids and contents accessible through the germination pores. Pollen walls, however, are not broken down because they consist of sporopollenin and are highly resistant to physical and enzymatic damage. Here
Chen, Shi, Li, Yongquan, Luo, Shixiao, Renner, Susanne S., Zhang, Dianxiang   +4 more
core   +1 more source

Evaluation of anti-bacterial activity and bioactive chemical analysis of Ocimum basilicum using Fourier transform infrared (FT-IR) and gas chromatography-mass spectrometry (GC-MS) techniques

, 2016
The objective of this research was to determine the chemical composition of aerial parts extract from methanol. The phytochemical compound screened by gas chromatography-mass spectrometry (GC-MS) method.
M. Kadhim, Azhar Abdulameer Sosa, I. Hameed   +2 more
semanticscholar   +1 more source

Chemical composition and antifungal effects of three species of Satureja (S. hortensis, S. spicigera, and S. khuzistanica) essential oils on the main pathogens of strawberry fruit [PDF]

, 2015
Due to an increasing risk of chemical contamination upon the application of synthetic fungicides to preserve fresh fruits and vegetables, essential oils are gaining increasing attentions.
Farzaneh, M., Hadian, J., Kiani, H., Reisi, M., Sharifi, R.   +4 more
core   +1 more source

Molecules and functions of rosewood: Dalbergia stevenson

Arabian Journal of Chemistry, 2018
In this paper, the organic solvent extract was analyzed by Fourier transform infrared spectroscopy (FT-IR) and gas chromatography–mass spectrometry (GC–MS), TG, Py–GC–MS and TD–GC–MS were used to analyze the Dalbergia stevenson.
Shuai Cheng Jiang, Sheng Bo Ge, Wanxi Peng   +2 more
doaj  

Detection and metabolic investigations of a novel designer steroid: 3-chloro-17α-methyl-5α-androstan-17β-ol

, 2015
In 2012, seized capsules containing white powder were analyzed to show the presence of unknown steroid-related compounds. Subsequent gas chromatography–mass spectrometry (GC-MS) and nuclear magnetic resonance (NMR) investigations identified a mixture of ...
Blakey, Karen, Boyd, Sue, Cawley, Adam T., Handelsman, David J., Heather, Alison, McGrath, Kristine C., McLeod, Malcolm D., Waller, Christopher C., Willis, Anthony C.   +8 more
core   +1 more source

Extraction of pure components from overlapped signals in gas chromatography-mass spectrometry (GC-MS) [PDF]

, 2009
Gas chromatography-mass spectrometry (GC-MS) is a widely used analytical technique for the identification and quantification of trace chemicals in complex mixtures.
A Barsch, A Ghosh, A Ghosh, A Luedemann, AR Fernie, B Bracewell, BE Blaisdell, BN Colby, C Denkert, CA Smith, CC Sweeley, D Oursel, D Rosenthal, DB Kell, E Heftmann, E Jellum, EC Horning, EJ Karjalainen, EJ Want, F Gan, F Gong, FC Sánchez, FJ Knorr, FJ Knorr, GL Ritter, H Kanani, H Lu, IHM van Stokkum, J Jiye, J Kopka, J Tian, JC Giddings, JE Biller, JE Davis, JH Gross, JI Castrillo, JM Davis, JM Halket, JM Halket, JR Chapman, KK Pasikanti, KK Pasikanti, KL Busch, KM Oksman-Caldentey, L Eldjarn, L Roach, M Katajamaa, M Meader, MA Sharaf, NR Herron, O Fiehn, P Comon, P Jonsson, P Jonsson, P Jonsson, PG Pedrioli, R Devantier, RAW Johnstone, RG Dromey, S Dagan, SA Wudy, SE Stein, SG Villas-Bôas, VB Di Marco, Vladimir A Likić, W Windig, WF Hargrove, WG Pool, WG Pool, X Shao, X Shao, XL Shu, XN Li, YY Mao   +73 more
core   +3 more sources

Metabolomics characterization of two saffron from Iran and China using GC–MS and LC–MS methods

Journal of Analytical Science and Technology
Saffron is a medicinally important species of the Iridaceae family. Saffron’s quality depends on the concentration of secondary metabolites. In this study, GC–MS and LC–MS were utilized to dissect the different metabolites profile of two saffron produced
Donglin Li, Wenhui Zuo, Shuo Ma, Renjie Li, Zhenfeng Ye   +4 more
doaj   +1 more source