Results 31 to 40 of about 403,538 (154)

Mobile Image Ratiometry: A New Method for Instantaneous Analysis of Rapid Test Strips [PDF]

open access: yes, 2012
Here we describe Mobile Image Ratiometry (MIR), a new method for the automated quantification of standardized rapid immunoassay strips using consumer-based mobile smartphone and tablet cameras.
Bryan Callahan   +3 more
core   +2 more sources

High-Throughput Quantitation of Cannabinoids by Liquid Chromatography Triple-Quadrupole Mass Spectrometry

open access: yesMolecules, 2022
The high-throughput quantitation of cannabinoids is important for the cannabis industry. As medicinal products increase, and research into compounds that have pharmacological benefits increase, and the need to quantitate more than just the main ...
Jonathan Tran   +3 more
doaj   +1 more source

Generic sample preparation combined with high-resolution liquid chromatography- time-of-flight mass spectrometry for unification of urine screening in doping-control laboratories [PDF]

open access: yes, 2010
A unification of doping-control screening procedures of prohibited small molecule substances—including stimulants, narcotics, steroids, ß2-agonists and diuretics—is highly urgent in order to free resources for new classes such as banned proteins ...
Georgakopoulos, C.G.   +4 more
core   +3 more sources

Progress in the analysis and detection of steroidal hormones in royal jelly

open access: yesShipin yu jixie, 2022
The rapid determination of steroidal hormones and their contents in royal jelly by molecular imprinting and high performance liquid chromatography-mass spectrometry (HPLC-MS) was reviewed.
LI Zheng   +4 more
doaj   +1 more source

A liquid chromatography tandem mass spectrometry method for simultaneous analysis of 46 atmospheric particulate-phase persistent organic pollutants and comparison with gas chromatography/mass spectrometry, [PDF]

open access: yes, 2017
A novel multi-analyte method for the simultaneous determination of 46 compounds of environmental concern, most of them belonging to the category of persistent organic pollutants, was developed using high-performance liquid chromatography and the results ...
Buiarelli, Francesca   +4 more
core   +1 more source

Liquid chromatography–mass spectrometry analysis of carvacrol in chicken tissues

open access: yesJournal of Veterinary Research, 2022
Carvacrol is an essential oil derived from oregano that is used as a natural additive to improve the efficiency of livestock nutrition. Residues of natural additives such as carvacrol should be monitored in food of animal origin to ensure consumer safety.
Śniegocki Tomasz
doaj   +1 more source

Current developments in LC-MS for pharmaceutical analysis [PDF]

open access: yes, 2002
The current developments in liquid chromatography-mass spectrometry (LC-MS) and its applications to the analysis of pharmaceuticals are reviewed. Various mass spectrometric techniques, including electrospray and nanospray ionization, atmospheric pressure
Lim, Chang-Kee, Lord, Gwyn A.
core   +1 more source

Screening and confirmation methods of the major urinary metabolite of finasteride–carboxy-finasteride by liquid chromatography–mass spectrometry and liquid chromatography–tandem mass spectrometry

open access: yesActa Pharmaceutica Sinica B, 2012
Screening and confirmation methods of the major urinary metabolite of finasteride–carboxy-finasteride for doping control purpose were developed. Liquid–liquid extraction was adopted for the sample preparation.
Jianli Zhang
doaj   +1 more source

Preventing false negatives with high-resolution mass spectrometry: the benzophenone case [PDF]

open access: yes, 2016
Benzophenone (BP) is one of the many contaminants reported as present in foodstuff due to its migration from food packaging materials. Liquid chromatography tandem mass spectrometry (LC-MS/MS) is acknowledged in the literature as the method of choice for
Galcerán Huguet, M. Teresa   +4 more
core   +1 more source

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