Results 61 to 70 of about 1,649,552 (239)
Pyrolysis-GC×GC-TOFMS to characterize carbonaceous chondrites [PDF]
Using pyrolysis-GCxGC-TOFMS to analyze organic carbon in carbonaceous chondrites gives a massive increase in both sensitivity and structural information from samples when compared to traditional Py-GC ...
Gilmour, I.+6 more
core
Determination of Glyphosate Levels in Breast Milk Samples from Germany by LC-MS/MS and GC-MS/MS.
This study describes the validation and application of two independent analytical methods for the determination of glyphosate in breast milk. They are based on liquid chromatography-tandem mass spectrometry (LC-MS/MS) and gas chromatography-tandem mass ...
A. Steinborn+8 more
semanticscholar +1 more source
Liquid chromatography-tandem mass spectrometry (LC-MS-MS) offers specific advantages over gas chromatography-mass spectrometry (GC-MS) such as the ability to identify and measure a broader range of compounds with minimal sample preparation.
E. Perez+5 more
semanticscholar +1 more source
COMPARISON OF VOLATILE COMPOSITION OF SUPERCRITICAL CARBON DIOXIDE EXTRACT FROM RHIZOMES OF KOREAN MEDICINAL PLANT 'CHUN-KUNG' (CNIDIUM OFFICINALE MAKINO) BY DIRECT-AND SPME-GC/MS [PDF]
Objective: The main purpose of this study was to evaluate the volatile composition of supercritical fluid extract (SFE) obtained from Cnidium officinale Makino rhizomes.
Jhoo, Jin-woo+4 more
core
Determination of flurbiprofen in pharmaceutical preparations by GC–MS
This article describes a gas chromatography–mass spectrometry (GC–MS) method for the determination of flurbiprofen in pharmaceutical preparations.
Bilal Yilmaz, Emrah Alkan
doaj
The detection of drugs of abuse in biological matrices using enzyme-linked immunosorbent assay and liquid chromatography-tandem mass spectrometry [PDF]
The aim of this study was to investigate the potential use of ELISA and LC-MS-MS in combination and as individual techniques, for the detection of drugs of abuse in biological matrices.
Miller, Eleanor Isabel
core +1 more source
Context: Despite some studies related to Juniperus phoenicea L. (Cupressaceae), phytochemical and biological investigations of this plant remain unexplored.
H. Keskes+6 more
semanticscholar +1 more source
Metabolomics : a tool for studying plant biology [PDF]
In recent years new technologies have allowed gene expression, protein and metabolite profiles in different tissues and developmental stages to be monitored.
Gullberg, Jonas
core
Guayule (Parthenium argentatum), a shrub native to the arid region of the U.S. southwest and Mexico belonging to the Asteraceae family, is a source of high quality, hypoallergenic natural rubber with applications in pharmaceutical, tire, and food ...
Mostafa Dehghanizadeh+4 more
doaj
Ageing of resin from Pinus species assessed by infrared spectroscopy [PDF]
Resins obtained from Pinus genus species have been widely used in very different fields throughout history. As soon as the resins are secreted, molecular changes start altering their chemical, mechanical and optical properties.
Beltran Sanchidrian, Victòria+3 more
core +2 more sources