Sentences with phrase «liquid chromatography»
"Liquid chromatography" refers to a technique used to separate and analyze different components of a liquid mixture. It involves passing the mixture through a special material called a "column" that separates each component based on their properties. This method helps scientists identify and quantify substances present in the liquid, which can be useful in various fields like medicine, chemistry, and environmental sciences. Full definition
Editor's Note: Brian Ruddell, a New Zealander studying in Australia, was kind enough to write us about High Performance Liquid Chromatography tests that he performed on a number of chiles that he grew in his garden, as well as a famous hot sauce.
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The method uses liquid chromatography coupled with tandem mass spectrometry (LC - MS / MS) to analyse a range of food products (both raw and baked goods) by detecting several unique signature peptides that are specific to each allergen.
Simultaneous quantitative determination of 5 - aza - 2 ′ - deoxycytidine genomic incorporation and DNA demethylation by liquid chromatography tandem mass spectrometry as exposure - response measures of nucleoside analog DNA methyltransferase inhibitors.
Main Outcomes and Measures Total urinary As and the sum of As species measured using inductively coupled mass spectrometry and high - performance liquid chromatography with inductively coupled mass spectrometry.
If Eppendorf suddenly started making high pressure liquid chromatography machines, the consumer would likely reject them — after all, what does a plastic tube maker know about HPLC?
Metabolite analyses were done using liquid chromatography coupled with mass spectrometry.
by Brian Ruddell Editor's Note: Brian Ruddell, a New Zealander studying in Australia, was kind enough to write us about High Performance Liquid Chromatography tests that he performed on a number of chiles that he grew in his garden, as well as a famous hot sauce.
They modified a high - performance liquid chromatography system to screen a wide variety of solvent, ligand, and base combinations to optimize carbon - carbon bond formation.
Methods: The researchers used capillary liquid chromatography - mass spectrometry to extensively characterize proteins present in the Salmonella wild - type and mutant strains.
They analyzed those samples using a chemical detection technique known as liquid chromatography mass spectrometry that singles out the presence of targeted chemicals.
German's colleague Carlito Lebrilla decided to attempt the job with the university's new nanoflow liquid chromatography time - of - flight machine, which identifies molecules by measuring the time it takes them to ping around a tube that looks like a stovepipe.
Stereoselective High - Performance Liquid Chromatography Tandem Mass Spectrometry Method for Determination of R - and S - Acenocoumarol in Human Plasma and Its Application in a Pharmacokinetics Study
The researchers combined protein purification techniques including fast protein liquid chromatography, with modern metagenomics, metaproteomic and associated bioinformatics analyses.
Average plant height is 29.5 inches and plant width is 25.0 inches, which is similar to that of» New Mexico 6 - 4 ′ and «NuMex R Naky» High performance liquid chromatography analysis revealed that capsaicinoid levels are less than 10 ppm, which is below the level that humans can taste.
After years of growing out strains of «Bhut Jolokia», tests with High Performance Liquid Chromatography revealed the heat level to be in excess of one million Scoville Heat Units.
Big companies invest in high performance liquid chromatography equipment to monitor the heat levels of their products.
Do you like liquid chromatography coupled to a mass spectrometer?
To see if this is true for humans as well, the researchers measured 8 - oxoGsn in urine samples from 1,228 Chinese residents aged 2 - 90 years old, using a rapid analysis technique called ultra-high-performance liquid chromatography.
The process involving liquid chromatography - electrospray ionization - tandem mass spectrometry relies on a vital step called «charge derivatization» or using a permanently charged reagent to selectively trap the estrogens and isolate them from the lipids and proteins that could interfere with estrogen detection, Schug said.
This system was validated by exploring a diverse range of reaction variables in a Suzuki - Miyaura coupling on nanomole scale at elevated temperatures, generating liquid chromatography — mass spectrometry data points for 5760 reactions at a rate of > 1500 reactions per 24 hours.
Milk and urine samples were analyzed for glyphosate and glyphosate metabolites using high sensitivity liquid chromatography - mass spectrometry methods specifically optimized for the task.
These include: acid hydrolysis and monosaccharide composition using gas - liquid chromatography [3], microscopic observation of xylem stem sections [4, 5], seedling growth on medium containing cell wall hydrolyzing enzymes [6] and Fourier - Transform Infrared (FT - IR) microspectroscopy [7, 8].
Kehr, J.; Hu, X.J.; Yoshitake, T.; Scheller, D. Determination of the dopamine agonist rotigotine in microdialysates from the rat brain by microbore column liquid chromatography with electrochemical detection.
Magno Junqueira (Shevchenko, MPG)-- «Systematic characterization of mammalian protein complexes by shotgun liquid chromatography tandem mass spectrometry» (2009)
In MudPIT, a complex mixture of proteins and peptides are separated using 2 - D liquid chromatography, and then the separate proteins are digested (chopped into smaller «peptide» pieces with enzymes) and subjected to the sensitive technique of mass spectrometry (which identifies the components based on their masses).
Two - dimensional liquid chromatography - tandem mass spectrometry coupled with isobaric tags for relative and absolute quantification (iTRAQ) labeling approach revealed first proteome profiles of pulmonary alveolar macrophages infected with porcine reproductive and respiratory syndrome virus.
The researchers used an innovative open - access bioinformatics pipeline developed by the group to process and annotate liquid chromatography / mass spectrometry data.
Humphries - Bickley, T, Castillo - Pichardo, L, Corujo - Carro, F, Duconge, J, Hernandez - O'Farrill, E, Vlaar, C, Rodriguez - Orengo, J, Cubano, L, and Dharmawardhane, S. Pharmacokinetics of Rac Inhibitor EHop - 016 in Mice by Ultra-Performance Liquid Chromatography Tandem Mass Spectrometry.
Brains that have been voxelated into ~ 700 cubes will be prepared using automated microscale sample processing and analyzed using high - throughput reversed - phase liquid chromatography coupled online with high - resolution mass spectrometry to obtain both the spatial localization and relative abundance of brain proteins.
These ultra-high-pressure liquid chromatography systems coupled with multiple switch valves and UV data acquisition makes it the system of choice for fully automated high - throughput approaches in the fields of metabolomics, proteomics, and food and environmental safety.
The CEPA Proteomics Core Facility is equipped with 1D and 2D gel electrophoresis units, ultra-high resolution image scanners, Progenesis 2D gel analysis software, thermomixers, nano - flow 2D liquid chromatography, biological and chemical hoods, and speedvac for mass spectrometry sample preparation.
* Experience with sample preparation, titrations, micro-scale distillations, chemical synthesis and chemical analysis using instruments AA, ICP, UV - Vis, GC and GC - MS, and different liquid chromatography techniques.
High - pressure liquid chromatography with ultraviolet - visible spectral analysis of toluene extracts of samples from two Cretaceous - Tertiary (K - T) boundary sites in New Zealand has revealed the presence of C60 at concentrations of 0.1 to 0.2 parts per million of the associated soot.
Methods: The scientists used capillary liquid chromatography (LC) coupled with Fourier transform ion cyclotron resonance (FTICR) mass spectrometry (MS) and the accurate mass and time (AMT) tag approach developed at PNNL to identify and quantify lipids present in healthy and diabetic individuals.
Performed all preventative maintenance and troubleshooting repairs on Liquid Chromatography and Mass Spectrometers (LC / MS).
The researchers used liquid chromatography - mass spectrometry to analyse the collected samples, as well as investigating the impact of different breathing patterns.
This step, known as liquid chromatography, isolates the exact compounds of interest, which are then sent to a mass spectrometer that confirms their chemical identity.
The Xevo G2 - XS QToF can be integrated with Waters» chromatographic tools, such as ultra-performance liquid chromatography, for high throughput.