Trace Analysis of Isothiazolinones in Water Samples by Large-Volume Direct Injection Liquid Chromatography Tandem Mass Spectrometry
Poster Dec 07, 2010
P. Speksnijder, J. van Ravestijn, and P. de Voogt
The work outlined in this poster is, to the best of the authors knowledge, the first employing LC–MS/MS for the analysis of some of the isothiazolinones. Second, it shows that direct on-column injection of relatively large volumes (mL range) of non-pretreated aqueous samples can be applied when using HPLC stationary phases that are amenable to high water contents (up to 100%) of the sample introduced. The results of the analyses of environmental water samples confirm earlier findings that the levels of the isothiazolinones in the aquatic environment are such that, despite their large volumes of production, they probably do neither pose an environmental nor a human health risk. The analytical method described can be used for checking the presence of preservatives in membrane flushings and in produced water, in line with the European standard EN 12873-4.
Application of Solid Phase Micro Extraction (SPME) and On‐Fiber Derivatization to Detect Precursors of Biomolecules in the study of Proto‐metabolismPoster
In the studies of origins of life, plausible synthetic reaction pathways to form biological relevant molecules, or building blocks of proto‐bilayer lipids, protein, RNA, and DNA in the primitive environment have been investigated intensively.READ MORE
A New Tool for the Automated Sample Preparation of Whole Blood Samples by LC-MS using a Commercial AutosamplerPoster
Automated sample preparation reduces the costs per sample and minimizes sample handling errors. Usually expensive and highly specialized pipetting robots are used. However, most of these systems are not designed with a direct interface for LC-MS applications. In addition common pipetting systems are not optimized for smaller scale sample series. Here we present a new tool for liquid handling of whole blood samples and direct sample injection.
Multi-Residue Pesticide Analysis in Food Matrices Using Ultivo Triple Quad LC/MSPoster
Regulatory agencies have set maximum residue levels for hundreds of pesticides and their metabolites in foods.READ MORE
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10th Edition of International Conference on Structural Biology 2018
Mar 15 - Mar 17, 2018