[PDF] Top 20 Compounds by Gas Chromatography-Mass Spectrometry
Has 10000 "Compounds by Gas Chromatography-Mass Spectrometry" found on our website. Below are the top 20 most common "Compounds by Gas Chromatography-Mass Spectrometry".
Compounds by Gas Chromatography-Mass Spectrometry
... analyzed by GC-MS. Different profiles were found between the extracts as much by the difference between the solvents (hexane and ethanol) as by the difference of the matrix (leaves and ...polar ... See full document
8
J. Braz. Chem. Soc. vol.20 número3
... followed by gas-liquid chromatography with a FID detector and a DB- Wax capillary ...identified by comparing their retention times with those of authentic samples, using n-heptadecane or ... See full document
5
An improved, automated whole air sampler and gas chromatography mass spectrometry analysis system for volatile organic compounds in the atmosphere
... The mass spectrometer (Agilent model 5975C) is usu- ally operated in selected ion monitoring mode, scanning up to 11 masses per window, 28 windows per chromatogram with dwell times between 10 and 20 ms per ... See full document
23
A method for analysis of vanillic acid in polar ice cores
... ganic compounds that are transported via aerosols to the po- lar ice ...liquid chromatography (HPLC) and detected using electrospray ionization–triple quadrupole mass spectrometry ...trillion ... See full document
6
Rev. bras. farmacogn. vol.25 número2
... Microwave Assisted Extraction and a modified CEN-QuEChERS methodology were evaluated as extrac- tion and clean up procedures for the simultaneous analysis of 42 organophosphate pesticides in yerba mate (Ilex ... See full document
7
J. Braz. Chem. Soc. vol.14 número3
... resolution gas chromatography-olfactometry-mass spectrometry and aroma extract dilution analysis identified the most potent substances in its aroma as ethyl butanoate (fruity, sweet), ethyl ... See full document
4
The role of miniaturized systems in analytical toxicology: new psychoactive substances
... using gas chromatography (GC) coupled to either mass spectrom- etry (MS) [2,18,24,30,31], tandem mass spectrometry (MS/MS) [11,12]or flame ionization detector (FID) [32]; or liquid ... See full document
157
Determination of plasticizers in drinking water using gas chromatography and mass spectrometry.
... DETERMINATION OF PLASTICIZERS IN DRINKING WATER USING GAS CHROMATOGRAPHY AND MASS SPECTROMETRY. This study investigated the levels of plasticizer endocrine disruptors (diethyl phthalate, ... See full document
8
J. Braz. Chem. Soc. vol.12 número4
... disruptor compounds, such as 4-nonylphenol isomers and bisphenol A was determined in surface water samples from ...sample by solid phase extraction (SPE) using a OASIS (Waters) cartridge, followed by ... See full document
6
Homogenity of oil and sugar components of flour amaranth investigated by GC-MS
... Gas chromatography with mass spectrometry (GC-MS) was used for per- forming a qualitative analysis of liposoluble and hydrosoluble flour extracts of three genotypes of Amaranthus ... See full document
6
J. Braz. Chem. Soc. vol.24 número5
... of gas chromatography-mass spectrometry and solid-phase microextraction for quantification of thymol and carvacrol in plasma and milk of dairy ... See full document
10
J. Braz. Chem. Soc. vol.22 número8
... with gas chromatography coupled to mass spectrometry (GC-MS) for determination of ametryn, tetraconazole, lumetralin, tebuconazole, pyrimethanil, dichloluanid and kresoxim-methyl in dehydrated ... See full document
6
Estimation of D-Arabinose by Gas Chromatography/Mass Spectrometry as Surrogate for Mycobacterial Lipoarabinomannan in Human Urine.
... LAM by acid hydrolysis, will be a specific surro- gate for LAM, unlike D-mannose which is abundant in the ...D-arabinose by GC/MS released from LAM by acid hydro- lysis was developed using the ... See full document
17
J. Braz. Chem. Soc. vol.27 número3
... determined by 1D and 2D nuclear magnetic resonance (NMR) spectrometry, Fourier transform infrared (FTIR) spectroscopy and high resolution atmospheric pressure chemical ionization mass ... See full document
5
J. Braz. Chem. Soc. vol.21 número6
... using gas chromatography coupled with mass spectrometry (GC-MS), operating in the negative chemical ionization mode (NCI) was developed and ... See full document
6
Detection of SPM-1-Producing Pseudomonas aeruginosa and Class D beta-Lactamase-Producing Acinetobacter baumannii Isolates by Use of Liquid Chromatography-Mass Spectrometry and Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry
... observed by Burckhardt and colleagues, who tested an ertapenem MALDI- TOF MS assay to detect carbapenemase activity of NDM-1, VIM-1, VIM-2, and KPC-2 enzymes in ...noticed by Queenan ... See full document
4
Characterization of the volatile fraction emitted by phloems of four pinus species by solid-phase microextraction and gas chromatography–mass spectrometry
... We identified 11 monoterpenes (Figs. 1 and 2; Tables 2 and 3), that have been previously reported to play a role in the pro- cess of host tree selection by conifers phytophagous insects [1,2,4–11,15,17–20]. Traces ... See full document
8
Exploring the capabilities of gas chromatography and liquid chromatography single and tandem mass spectrometry for discriminating and characterizing marine oils by using chemometric tools
... multiple compounds and determine the characteristic pattern of samples 163, 164 .... By combining fingerprinting methods with multivariate techniques, such as PCA, similarity analysis or other chemometric ... See full document
97
Quím. Nova vol.30 número8
... analyzed by gas chromatography/mass spectrometry for the presence of ...CP3800 gas chromatograph (Varian, California, USA) coupled to a Saturn 2000 mass selective detector ... See full document
2
Determination of amphetamines-type stimulants in urine samples using microextraction by packed sorbent and gas chromatography-mass spectrometry
... Comparing with the literature available of microextraction techniques to determine amphetamines in urine samples, the present work seems to give adequate recoveries. Chung et al. (2008) (34) obtained recoveries for AMP ... See full document
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