Science Archive
Aug. 05, 2011Pesticide residue control in food and feed remains a challenge for analysts despite the enormous progress in the development of new analytical techniques, procedures and analytical equipment. To ensure food and feed safety and protect consumers from exposure to unacceptable levels of pesticides residues maximum residual levels (MRLs) allowed in a commodity are set by European Comission and reviewed as needed. The number of compounds which should be monitored is immense. The number of types and kinds of food commodities is a lso tremendous.
moreJul. 24, 2011Nitration of proteins on tyrosine residues occur upon exposure to ozone and nitrogen oxides in polluted air. This posttranslational modification of proteins can trigger immune reactions and provides a molecular rationale for the promotion of allergies by traffic-related air pollution [1].
moreJul. 19, 2011The Clinical and Laboratory Standards Institute (CLSI) recently published Quality Management System: A Model for Laboratory Services; Approved Guideline-Fourth Edition (GP26-A4). This document provides a practical model for medical laboratories that will assist with implementation and maintenance of an effective quality management system (QMS).
moreJul. 18, 2011The last decade has seen a year on year increase in the production and testing of new biologically active compounds against a rapidly growing portfolio of potential therapeutic targets. This elevated research and development activity has arisen as a direct result of the completion of the human genome-sequencing project accompanied with advances in chemical synthesis and drug design.
moreJul. 10, 2011Chiral ionic liquids (CILs) are attractive for their potential applications in chiral analysis. The recent increase in ILs derived from amino acids that are chiral, ‘green', biocompatible and less toxic has also created interest in CILs. The synthesis and analysis of CILs derived from both enantiomeric forms of alanine and leucine ester chlorides and lithium bis- (pentafluoroethylsulfonyl)imide is described. The resultant CILs were liquids and thermally stable up to 288°C.
moreJul. 04, 2011Chemistry and its proceedings are often seen in a close relationship with poisoning, environmental pollution and damage. People often overlook the benefits chemistry brings to our daily life.
moreJun. 29, 2011The book "Production of Membrane Proteins" is designed as a research-level guide to current strategies and methods of membrane protein production on the small to intermediate scale.
moreMay. 29, 2011In the poster 'Amino Acid Based Chiral Ionic Liquids as Potential GC Stationary Phases' Irene Kimaru et al. present the synthesis and characterization of both enantiomeric forms of amino acid based chiral ionic liquids (CILs).
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