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Friday, August 22, 2014
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MS Data Processing With Full Flexibility Of Universal Processing Software
Frans Schoutsen, Barbara van Cann, Vincent Jespers, Michal Godula

Liquid Chromatography (LC) in combination with triple quadrupole Mass Spectrometry (MS) is more and more a common analysis technique in routine laboratories. Especially when using MS/MS selected reaction monitoring (SRM) for a large number of components data handling can be a bottle neck. This poster will show MS data processing of pesticides in water samples using an already established chromatography data system which is now also capable of processing large quantities of MS data.

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Analysis of Dithiocarbamate Pesticides by GC-MS
Soma Dasgupta1,2, Sumaiyya Mujawar1, Kaushik Banerjee1, Hans-Joachim Huebschmann3, Paul Silcock4

Analysis of dithiocarbamate pesticides (DTCs) using an optimized GC-MS method is described. DTCs are not stable and cannot be extracted or analyzed directly. The purpose of this work was develop a reliable method for identification and quantification of residues.

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Analysis of Multiresidue Pesticides Present in Ayurvedic Churna by GC-MS/MS
Manoj Surwade, Sunil T Kumar, Aarti Karkhanis, Manish Kumar, Soma Dasgupta, Hans-Joachim Huebschmann, Paul Silcock, Thermo Fisher Scientific

Analysis of Herbal powders or ‘churnas’ using an optimized GC-MS/MS method is described. As they have high amount of matrix co-extractives, they pose critical analytical problems. The purpose of this work was overcome the effect of the matrix and develop a reliable method.

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Automated Solid-Phase Extraction of Oraganochlorine Pesticides from Drinking Water
Frans Schoustsen and Pranathi R Perati

A new method was developed to automate the capture and elution of Organochlorine pesticides from drinking water. The concentrated analytes were then analyzed by GC with Electron Capture Detection (ECD).

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GC-MS/MS Analysis of Pesticide Residue in Green Tea Extracted by QuEChERS with Acetonitrile as Final Solvent
Cojocariu C., Morgan P., Silcock P., Godula M

QuEChERS involves an initial step when a few grams of the sample are extracted with acetonitrile followed by a clean-up step (with dispersive-SPE) used to remove, to a certain extent, unwanted matrix compound (such as pigments, sugars, organic acids). With QuEChERS, the final extract ends up with the pesticides in acetonitrile, which, being polar solvent, can be
problematic in GC-MS.

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Increasing Extraction Efficiency of Pesticides and Dioxins from Wet Samples Using a Novel Polymer During Accelerated Solvent Extraction
Katerina Bousova, Pranathi Perati, Rahmat Ullah, Kannan Srinivasan

Thermo Scientific™ Dionex™ ASE™ Prep MAP is a proprietary polymer designed to remove moisture and increase extraction efficiencies from wet samples including soils, tissues and food products. This unique formulation allows moisture removal under a variety of ionic strength conditions and accelerated solvent extraction conditions.

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Automatic Characterization of Lipids Using Charge Remote Fragmentation Ions and Peaks Characteristic of Fatty Acid Fragmentation From MALDI MS/MS Data
Ningombam Sanjib Meitei*(1); Arun Apte(2); Dietmar Waidelich(3); Fadi Abdi(4); Matthias Glueckmann(3)

Automated identification of lipids using CRF ions and high energy MS/MS fragment ions and novel software.

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Automatic Characterization of Lipids Using Charge Remote Fragmentation Ions and Peaks Characteristic of Fatty Acid Fragmentation From MALDI MS/MS Data
Ningombam Sanjib Meitei*(1); Arun Apte(2); Dietmar Waidelich(3); Fadi Abdi(4); Matthias Glueckmann(3)

Automated identification of lipids using CRF ions and high energy MS/MS fragment ions and novel software.

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Intact Protein LC-MS: How to Overcome the Challenges?
Robert van Ling, Evert-Jan Sneekes, Sebastiaan Dolman, Laurent Rieux, Mauro DePra, Christian Ravnsborg, Dafydd Milton, Remco Swart

Purpose: Facilitate intact protein LC-MS without compromising performance.
Methods: Construct prototypes of integrated column and sprayer dedicated for intact protein separations and compare performance.
Results: Three prototypes have been directly compared and all showed good protein separations, each with their unique area of strength.

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Instant Connect Gas Sampling Valve Module Introducing a New Flexibility in Gas Sampling for GC and GCMS
Stefano Pelagatti, Paolo Magni, Fausto Pigozzo

Purpose: We present a newly developed gas sampling valve module for the Thermo Scientific™ TRACE™ 1300 Series Gas Chromatograph (GC).

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Scientific News
Making Cashews Safer for Those with Allergies
Scientists now develop a method to process cashews to make them safer to eat.
Immunochromatographic Assay for Rapid Salmonella Detection
The test strip described in the study would be beneficial for poultry farms and other veterinary production for the monitoring of S. Typhimurium and/or S. Enteritidis contamination.
Ingested Nanoparticles May Damage Liver
Although nanoparticles in food, sunscreen and other everyday products have many benefits, researchers from Cornell are finding that at certain doses, the particles might cause human organ damage.
Diet Affects Men’s and Women’s Gut Microbes Differently
Therapies designed to improve human health and treat diseases through nutrition might need to be tailored for each sex.
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.
Foodborne Pathogen Detection Speeds Up Dramatically
Next-generation sequencing techniques allow rapidly identification of strains of salmonella, quickening responses to potential outbreaks.
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.
Salmonella Relies on Single Food Source to Stay Potent
Study suggests genes needed for nutrient could be attractive drug target to fight infection.
Boron Tolerance Discovery for Higher Wheat Yields
Adelaide scientists have identified the genes in wheat that control tolerance to a significant yield-limiting soil condition found around the globe - boron toxicity.
First Direct Evidence of Plants in Neanderthal Diet
Although heavy on meat our prehistoric cousin's diet also included plant tissues, such as tubers and nuts.
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