Results 61 to 70 of about 5,352,584 (256)

The Analysis of Recreational Drugs in Biological Specimens Using Liquid Chromatography Mass Spectrometry [PDF]

open access: yes, 2008
In the last few years, the prevalence of legal party pills in New Zealand has risen dramatically. These pills contain new piperazine designer drugs, two of the more common being 1-benzylpiperazine (BZP) and m-trifluoromethylphenylpiperazine (TFMPP). This
Lucas, Natasha
core  

De novo synthesis of short‐chain aldehydes and hydrocarbons secreted by the brown marmorated stink bug Halyomorpha halys

open access: yesFEBS Open Bio, EarlyView.
The brown marmorated stink bug, Halyomorpha halys, mainly secretes 4‐oxo‐(E)‐2‐hexenal, (E)‐2‐decenal, dodecane and tridecane, a mixture representative of that released by many heteropterans. We demonstrated that H. halys can synthesise these secretory components de novo using dietary glucose.
Haruna Fujimori, Koji Noge
wiley   +1 more source

An application of data mining to fruit and vegetable sample identification using Gas Chromatography-Mass Spectrometry [PDF]

open access: yes, 2012
One of the uses of Gas Chromatography-Mass Spectrometry (GC-MS) is in the detection of pesticide residues in fruit and vegetables. In a high throughput laboratory there is the potential for sample swaps or mislabelling, as once a sample has been pre ...
Holmes, Geoffrey   +2 more
core   +1 more source

An on-line solid phase extraction procedure for the routine quantification of urinary methylmalonic acid by liquid chromatography-tandem mass spectrometry [PDF]

open access: yes, 2010
Background: The goal of this study was to develop and to validate an improved isotope-dilution-liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of methylmalonic acid (MMA) in urine.
Michael Vogeser   +5 more
core   +1 more source

Data on the optimization of a GC–MS procedure for the determination of total plasma myo-inositol

open access: yesData in Brief, 2016
Myo-inositol (MI) is one of the stereoisomers of hexahydroxycyclohexane, which plays an important role in intracellular signal pathway. Derivatization is an indispensable step in both external and internal standard method during the chromatography-mass ...
Jin Guo   +7 more
doaj   +1 more source

Conformational Switching of Proteins on Material Surfaces Enabled by Peptide‐Oriented Adsorption

open access: yesAdvanced Functional Materials, EarlyView.
Responsive biointerfaces could be achieved using conformationally responsive proteins; however, their interconversion can be lost upon surface adsorption. Herein, we demonstrate that the incorporation a Au binding peptide into calmodulin allows for binding control on Au wherein the protein retains conformational switching. This capability was confirmed
Sakthirupini Ramamurthy   +7 more
wiley   +1 more source

Volatile compound fingerprinting of mixed-culture fermentations. [PDF]

open access: yes, 2011
Item does not contain fulltextWith the advent of the -omics era, classical technology platforms, such as hyphenated mass spectrometry, are currently undergoing a transformation toward high-throughput application.
Hylckama, J., van   +24 more
core   +2 more sources

Separation of Light Rare-Earth Elements Using Gas-Pressurized Extraction Chromatography

open access: yes, 2021
A new method for chemical separation of light rare-earth elements (LREEs) using gas-pressurized extraction chromatography (GPEC) is described. GPEC is a microscale column chromatography system that features a constant flow of solvents, which is created ...
Um, W., Kim, J., Kim, N., Park, J.I.
core   +1 more source

Programming Nanoscale Reaction Environments via Peptide Localization for Gold Nanoparticle Growth in Liposomal Nanoreactors

open access: yesAdvanced Functional Materials, EarlyView.
The liposome nanoreactor method enables uniform metal nanoparticle synthesis using the interior as a reaction environment. We demonstrate that peptide sequences and lipid compositions act as a functional molecular switch to control reaction environments in liposome nanoreactors.
Yuya Abe   +6 more
wiley   +1 more source

Optimising an Airborne Gas Chromatograph/Mass Spectrometer to Measure Tropospheric Volatile Organic Compounds [PDF]

open access: yes, 2012
Work to optimise the temperature program of an airborne gas chromatography mass spectrometer was carried out in order to increase the number of analyses that can be carried out per flight.
Minaeian, Jamie K
core   +5 more sources

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