Results 91 to 100 of about 890,238 (270)

The Applications and Features of Liquid Chromatography-Mass Spectrometry in the Analysis of Traditional Chinese Medicine

open access: yesEvidence-Based Complementary and Alternative Medicine, 2016
With increasingly improved separation of complex samples and detection of unknown material capabilities, liquid chromatography coupled with mass spectrometry (LC-MS) has been widely used in traditional Chinese medicine (TCM) research.
Bing-yao Pang   +4 more
semanticscholar   +1 more source

Identification of Trenbolone Metabolites Using Hydrogen Isotope Ratio Mass Spectrometry and Liquid Chromatography/High Accuracy/High Resolution Mass Spectrometry for Doping Control Analysis

open access: yesFrontiers in Chemistry, 2020
Trenbolone is a synthetic anabolic-androgenic steroid, which has been misused for performance enhancement in sports. The detection of trenbolone doping in routine sports drug testing programs is complex as methods utilizing gas chromatography/mass ...
Marlen Putz, Thomas Piper, Mario Thevis
doaj   +1 more source

A case of acute intoxication due to combined use of fentanyl and 3,4-dichloro-N-[2-(dimethylamino)cyclohexyl]-N-methylbenzamide (U-47700) [PDF]

open access: yes, 2016
<p>A 30-year old man was found dead in his home after inhaling fumes of a powder burned on aluminum foil. Blood and urine were taken by the medical examiner during the external body examination and submitted to the laboratory for a comprehensive ...
Blanckaert, Peter   +4 more
core   +2 more sources

Top-Down Mass Spectrometry Imaging of Intact Proteins by LAESI FT-ICR MS [PDF]

open access: yesarXiv, 2013
Laser Ablation Electrospray Ionization is a recent development in mass spectrometry imaging. It has been shown that lipids and small metabolites can be imaged in various samples such as plant material, tissue sections or bacterial colonies without anysample pre-treatment.
arxiv  

Separation of Oligosaccharides from Lotus Seeds via Medium-pressure Liquid Chromatography Coupled with ELSD and DAD [PDF]

open access: yes, 2017
peer-reviewedLotus seeds were identified by the Ministry of Public Health of China as both food and medicine. One general function of lotus seeds is to improve intestinal health.
AD Orozco-Cortes   +39 more
core   +1 more source

Comprehensive chemical profiling and quantification of Shexiang Xintongning tablets by integrating liquid chromatography-mass spectrometry and gas chromatography-mass spectrometry

open access: yesArabian Journal of Chemistry, 2023
Shexiang Xintongning tablet (SXXTN) is a traditional Chinese medicine (TCM) preparation for the treatment of coronary heart disease (CHD) angina pectoris.
Meng Ding   +6 more
doaj  

Quantification of 2-Hydroxyglutarate Enantiomers by Liquid Chromatography-mass Spectrometry

open access: yesBio-Protocol, 2016
Two enantiomers of 2-hydroxyglutarate (2HG), L (L2HG) and D (D2HG), are metabolites of unknown function in mammalian cells that were initially associated with separate and rare inborn errors of metabolism resulting in increased urinary excretion of 2HG ...
William Oldham, Joseph Loscalzo
doaj   +1 more source

ISOCRATIC LC-UV, LC-MS AND MS/MS STUDIES ON FENOXAZOLINE AND ITS DEGRADATION PRODUCTS [PDF]

open access: yes, 2015
Objective: To develop and validate a selective stability indicating high performance liquid chromatographic method for fenoxazoline hydrochloride, to carry out its forced degradation and to identify the degradation products using hyphenated techniques ...
Deshpande, Krishna   +2 more
core  

A New Liquid Chromatography-Tandem Mass Spectrometry Method for Determination of Bisoprolol in Human Plasma Samples [PDF]

open access: yes, 2009
Liquid chromatography (LC) coupled with mass spectrometry (MS) detection is one of the most powerful analytical tools for organic compound analysis. The advantages of using LC/MS methods over HPLC methods include: selectivity, chromatographic integrity ...
Apostu, Mihai   +4 more
core   +4 more sources

The Impact of the Malolactic Fermentation in the Volatile Composition of Trincadeira Wine Variety [PDF]

open access: yes, 2011
Use of commercial starters for malolactic fermentation (MLF) is a common practice, and outcomes of this procedure are very relevant for wine producers because aroma attributes might change according to the strain used.
Cabrita, M.J.   +4 more
core   +1 more source

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