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Saturday, August 02, 2014
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Identification and classification of antifouling compounds secreted by anti MIC microorganisms. A metabolomic analysis.
Albillos SM; Balaña-Fouce R; Montero O; Barreiro-Mendez C; Blas-Galindo E; Barros-García R; Guedella-Bustamante E; Ullán RV

BIOCORIN project, aims to develop a green alternative to the coatings and solutions used up to date for MIC corrosion control. Some of the results of this project are presented here, with the identification of several relevant antifouling compounds secreted by environmentally isolated anti-MIC strains of microorganisms via a metabolomic approach.

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Employing Design of Experiments (DoE) to Evaluate the Robustness of an Automated Content Uniformity Method for the Triple Fixed Dose Combination Tablets
Irena Maksimovic, Dongsheng Bu, David Lloyd

The Design of Experiments study was employed to optimize the operating ranges of the critical sample extraction parameters for the content uniformity determination of three actives in Triple Fixed Dose Combination tablets using Tablet Processing Workstation bench-top robotic system.

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Employing Design of Experiments (DoE) to Evaluate the Robustness of an Automated Content Uniformity Method for the Triple Fixed Dose Combination Tablets
Irena Maksimovic, Dongsheng Bu, David Lloyd

The Design of Experiments study was employed to optimize the operating ranges of the critical sample extraction parameters for the content uniformity determination of three actives in Triple Fixed Dose Combination tablets using Tablet Processing Workstation bench-top robotic system.

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Investigation of Chemical Contaminants in Soils Following Superstorm Sandy
Amy C Mandigo*, Dana J DiScenza*, Alison R Keimowitz†, and Neil Fitzgerald*

Investigation of Chemical Contaminants in Soils Following Superstorm Sandy

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Determination of Metabolically Unstable Drugs in Blood by Heat-Stabilized DBS and LC-MS/MS

The aims of this work were to investigate drug stability prior to, during and after blood spot sampling, using procaine, prulofloxacine, esmolol, and acetylsalisylic acid as examples of drug compounds with limited stability and to compare conventional DBS sampling procedure with DBS sampling including heat stabilization.

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Determination of Metabolically Unstable Drugs in Blood by Heat-Stabilized DBS and LC-MS/MS
Charlotta Göransson; Karl Sköld; David Zeeberg; Gunnar Hägglund; Eskil Hermansson; Peter Abrahamsson and Martin Ahnoff

The aims of this work were to investigate drug stability prior to, during and after blood spot sampling, using procaine, prulofloxacine, esmolol, and acetylsalisylic acid as examples of drug compounds with limited stability and to compare conventional DBS sampling procedure with DBS sampling including heat stabilization.

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LC/MS/MS Quantitation of Eicosapentaenoic Acid in Rat Plasma
Rachel Sun, Jordan Nally, Tim Shoaf

Eicosapentaenoic acid (EPA) is an omega-3 fatty acid, which has been documented to be important in biochemical and physiological processes including inflammatory response, blood clotting and the immune system. Eicosapentaenoic acid (EPA) appears in different forms in the blood including triglyceride, ethyl ester, or free acid. In this work we presented an LC/MS/MS method to quantitate the total eicosapentaenoic acid in rat plasma with a 96-well plate format.

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Ion Chromatography ICP-Q-MS for the Detection of Arsenic Species in Apple Juice
Daniel Kutscher, Shona McSheehy-Ducos, Julian Wills and Detlef Jensen

Interest in the determination of Arsenic species in fruit juices has been triggered by recent media reports in the United States claiming that some apple juices may contain high amounts of Arsenic. Inorganic forms of Arsenic (As3+ and As5+) are highly toxic, whereas the organic forms (e.g. arsenobetaine) are not considered toxic. A robust IC-ICP-MS system was developed and shown to be a highly selective and sensitive technique for determination of trace element species.

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Streamlined QbD HPLC Method Development with Automated Data Processing
Gang Xue1, Jeff Harwood1, Charles Cheng1, David Fortin1, Jian Wang1, George Reid1, Mike McBrien2, and Andrey Vazhentsev2

Quality by Design (QbD) has been widely applied to pharmaceutical manufacturing to enhance process robustness, and improve product quality and manufacturing productivity. Recently, there arose tremendous interests from both the pharmaceutical industry and regulatory agents to expand it to analytical methodology.

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Showing Results 11 - 20 of 46
Scientific News
Simultaneous Determination of Six Flame Retardants in Water
The work aimed to develop an analytical procedure for the extraction and simultaneous determination of selected flame retardants.
Using LC-MS to Analyse Sulfonamides in Food Grade Honey
Sulfonamides are one of a number of groups of chemicals whose presence in honey is limited by international regulations.
Assessing Anticancer Drugs Efficacy by Amino Acid Metabolomics
Researchers aimed to develop a method that determines the therapeutic efficacy of anticancer drugs based on the changes in amino acid metabolism at the cellular level.
Reimagining UHPLC
To learn more about the new Vanquish UHPLC system from Thermo Fisher Scientific we spoke to Wulff Niedner, Director of HPLC Product Marketing.
UHPLC: The Greening Face of Liquid Chromatography
Greening pathways for liquid chromatography is especially significant for drug analysis in the pharmaceutical matrix.
Evaluating Acute Hydrogen Sulfide Poisoning in Rats through Serum Metabolomics
Through the use of GC/MS-based metabolomics, researchers have evaluated the effect of acute hydrogen sulfide poisoning on the metabolic profiles of rats.
Separation of mAbs Molecular Variants by Analytical HIC-HPLC
HIC-HPLC is a less widely used analytical technique compared with standard methods for separating variants based on size, charge or electrophoretic mobility.
Simultaneous Determination of Free Urinary Steroids
Researchers have described an LC–MS/MS method that accurate, precise and is in accordance with FDA guidelines.
Moment Analysis of Chromatographic Behavior of Separation Media for Fast HPLC
Chromatographic behavior in RPLC using the C18-silica monolith and C18-core-shell particles was analyzed by the two equations from the kinetic points of view.
Human Proteome Project Uncovers 193 Proteins Not Known to Exist
The team of international researchers reports the identification of 193 novel proteins that came from regions of the genome not predicted to code for proteins.
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