Results 41 to 50 of about 5,352,584 (256)

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

Quantification of sirolimus by liquid chromatography-tandem mass spectrometry using on-line solid-phase extraction [PDF]

, 2002
Quantification of the new immunosuppressant sirolimus (syn. rapamycin; Rapamune((R))) in whole blood by chromatography is essential for its clinical use since no immunoassay is available although monitoring is mandatory.
Fleischer, Claudia, Groetzner, Jan, Spöhrer, Ute, Meiser, Bruno, Seidel, Dietrich, Vogeser, Michael   +5 more
core   +1 more source

Gas chromatography–mass spectrometry molecular structural analysis of

Results in Chemistry
Conventional high-throughput metabolomics tools often struggle with the unambiguous annotation of complex plant metabolites and structural isomers.
Jing Feng, Ekaterina Gins, Bojidarka Ivanova, Svetlana Motyleva, Valentina Gins, Murat Gins, Huafeng Zhang   +6 more
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

Quantification of voriconazole in plasma by liquid chromatography-tandem mass spectrometry [PDF]

, 2005
A convenient liquid chromatography-tandem mass spectrometry method for the quantification of the triazole antifungal agent voriconazole in plasma samples is described. Fenbuconazole is used as an internal standard.
Spöhrer, Ute, Schiel, Xaver, Vogeser, Michael   +2 more
core   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

Innovative solutions for enhanced illicit drugs profiling using comprehensive two-dimensional gas chromatography and mass spectrometry technologies [PDF]

, 2014
This project aimed to determine whether comprehensive two-dimensional gas chromatography is suitable for routine use in a forensic laboratory for profiling illicit substances.
Philip Marriot, Blagoj Mitrevski
core  

Detection of Mycobacterium tuberculosis in sputum by gas chromatography-mass spectrometry of methyl mycocerosates released by thermochemolysis. [PDF]

, 2012
Tuberculosis requires rapid diagnosis to prevent further transmission and allow prompt administration of treatment. Current methods for diagnosing pulmonary tuberculosis lack sensitivity are expensive or are extremely slow.
Minnikin, David E, Geraint H Morgan, Mutetwa, Reggie, Mutetwa Reggie, O'Sullivan, Denise M, David E Minnikin, McNerney, Ruth, Morgan Geraint H., Simona C Nicoara, Bardwell Max W., Lee, Oona Y-C., Corbett, Elizabeth L., Lee, Oona Y-C, Nicoara, Simona C., O'Sullivan Denise M., Minnikin David E., Elizabeth L Corbett, Oona Y-C Lee, Lee Oona Y-C., Bardwell, Max W, Mungofa Stanley, O'Sullivan, Denise M., Denise M O'Sullivan, Bardwell, Max W., Max W Bardwell, Nicoara Simona C., McNerney Ruth, Reggie Mutetwa, Minnikin, David E., Corbett, Elizabeth L, Ruth McNerney, Morgan, Geraint H, Stanley Mungofa, Corbett Elizabeth L., Morgan, Geraint H., Mungofa, Stanley, Nicoara, Simona C   +36 more
core   +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

Chiral separation of chloroalkanes with the chromatographic column onboard Martian rovers

FEBS Letters, EarlyView.
Computer image of the Rosalind Franklin Rover of ESA's ExoMars mission. ExoMars is scheduled to land on planet Mars in Oxia Planum in 2029. This area represents an interesting spot to look for biosignatures. Investigations of ExoMars include measurement on molecular chirality. We show that chiral chloroalkanes, that have been identified on Mars, can be
Asma Merzougui, Agnes Banreti, Armelle L. Ernst, Guillaume Leseigneur, Uwe J. Meierhenrich   +4 more
wiley   +1 more source