Results 71 to 80 of about 911,645 (210)

Development and application of an UHPLC-MS/MS method for the simultaneous determination of 17 steroidal hormones in equine serum [PDF]

open access: yes, 2017
A new, fast and simple analytical method that is able to identify and quantify simultaneously 17 steroid hormones and metabolites (Pregnenolone, 17-OH-Pregnenolone, Progesterone, 17-OH Progesterone, Androsterone, Androstenedione, DHEA, DHEAS ...
Allis   +20 more
core   +1 more source

Mass Spectrometric Fingerprinting to Detect Fraud and Herbal Adulteration in Plant Food Supplements

open access: yesMolecules
Mass spectrometric (MS) fingerprinting coupled with chemometrics for the detection of plants in plant mixtures is sparsely researched. This paper aims to check its value for herbal adulteration concerning plants with slimming as an indication.
Surbhi Ranjan   +4 more
doaj   +1 more source

Atmospheric pressure gas chromatography-time-of-flight-mass spectrometry (APGC-ToF-MS) for the determination of regulated and emerging contaminants in aqueous samples after stir bar sorptive extraction (SBSE) [PDF]

open access: yes, 2014
This work presents the development, optimization and validation of a multi-residue method for the simultaneous determination of 102 contaminants, including fragrances, UV filters, repellents, endocrine disruptors, biocides, polycyclic aromatic ...
Arbulu   +38 more
core   +2 more sources

Analyses of pyrimidine and purine bases by a combination of paper chromatography and time of flight mass spectrometry [PDF]

open access: yes
Paper chromatography and mass spectrometry for analyses of pyrimidine and purine ...
Fuse, K., Hayatsu, R., Studier, M. H.
core   +1 more source

GLC analysis of base composition of RNA and DNA hydrolysates [PDF]

open access: yes
Various methods used for the analysis of the base composition of RNA and DNA hydrolysates are presented. The methods discussed are: (1) ion-exchange chromatography, (2) paper chromatography, (3) paper electrophoresis, (4) thin layer chromatography, (5 ...
Gehreke, C. W., Lakings, D. B.
core   +1 more source

Liquid Chromatography/Mass Spectrometry

open access: yes, 2012
In this article, selected examples of applications of liquid chromatography coupled to mass spectrometry are given. The examples include the analysis of i) impurities in manufactured, pharmaceutical or synthesis products, ii) polyphenols in natural products, and iii) phytohormones in plant extracts.
Jáuregui Pallarés, Olga   +2 more
openaire   +3 more sources

Glycoform-resolved FcɣRIIIa affinity chromatography–mass spectrometry

open access: yesmAbs, 2019
Determination of the impact of individual antibody glycoforms on FcɣRIIIa affinity, and consequently antibody-dependent cell-mediated cytotoxicity (ADCC) previously required high purity glycoengineering.
Steffen Lippold   +8 more
doaj   +1 more source

Liquid chromatographic strategies for separation of bioactive compounds in food matrices [PDF]

open access: yes, 2018
Nowadays, there is an increasing attention for nutraceuticals and, in general, bioactive compounds naturally present in food. Indeed, the possibility of preserving human health and preventing disease (e.g., cardiovascular diseases, cancer etc.) by the ...
Capriotti, Anna Laura   +5 more
core   +1 more source

Gas Chromatograph-quadrupole Mass Spectrometric Analysis of Organic Compounds [PDF]

open access: yes
Gas chromatography and mass spectrometry of acetonitrile, furan, pyrrole, paraffins, and other aromatic organic compounds of biological ...
Oro, J., Updegrove, W. S., Zlatkis, A.
core   +1 more source

Existing and emerging technologies for measuring stable isotope labelled retinol in biological samples: isotope dilution analysis of body retinol stores [PDF]

open access: yes, 2014
This paper discusses some of the recent improvements in instrumentation used for stable isotope tracer measurements in the context of measuring retinol stores, in vivo.
Preston, Tom
core   +1 more source

Home - About - Disclaimer - Privacy