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GC-MS/MS Analysis of Pesticide Residues in Green Tea Extracted by QuEChERS with Acetonitrile as Final Solvent
Cojocariu C., Morgan P., Silcock P., Pelagatti S., Magni P. and Pigozzo F.

This poster describes the analysis of several challenging pesticides from green tea samples using GC-MS/MS and acetonitrile as final extraction solvent. The compounds analysed are representatives of various classes of pesticides, such as carboxamids, OC, OP, pyrethriods, aromatic, phenylamides.

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Determination of Veterinary Drug Residues in Milk by GC/MS and GC/ECD
Yu Chongtian, Lv Jianxia

Purpose: Develop a rapid, sensitive method for determining amitraz and its metabolites in milk.
Methods: Samples were hydrolyzed in acidic condition and extracted with hexane. After derivativation, the samples were analyzed by GC-ECD or directly by GC-MS.
Results: The results show that GC-MS determination of amitraz and its metabolites is rapid and sensitive.

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GC-MS Comparison of Lavindin Grosso Oil Obtained by Steam Distillation and SFE
Claudia Worley, Lisa Zona, Susan Sonchik Marine

Oil was extracted from Lavindin Grosso using steam distillation and using supercritical fluid extraction (SFE). Multiple analyses of the same extract demonstrated repeatability of the analytical method. The variability between batches of distillate bracketed the composition obtained by SFE. The differences among the oils could be attributed more to where the lavender was grown than to the extraction method.

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Purification of Synthetic Oligodeoxynucleotides via Catching by Polymerization
Suntara Fueangfung, Shiyue Fang

This poster describes new simple methods for oligodeoxynucleotide purification without chromotography.

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Chemometrical optimization and fast determination of debittering of table olives by means of capillary electrophoresis
Albillos SM, Busto MC, Ortega N, Pilar-Izquierdo MC, Ramos-Gómez S, Pérez-Mateos M

Table olives require a thorough process of debittering in order to achieve the organoleptic quality of olives before consumption. Capillary electrophoresis offers several advantages to the determination of the bitter responsible compound oleuropein in table olives, such as speed, reduced amount of solvents and reagents, small amount of sample, high efficiency and lower costs.

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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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Discrimination of Meat Species Using Raman Spectroscopy and PCA
Reyhan Selin Uysala, Tümay Temiza, Ismail Hakki Boyacia,b, Hasan Murat Veliogluc, Ugur Tamerd

Discrimination of meat species and meat products was performed with using Raman spectroscopy and principal component analysis (PCA).

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A Mass Spectrometer for Elemental Analysis based on Fieldable Technologies
Hilary Brown, Jennifer Speer, John Gerling, and Kenyon Evans-Nguyen

Laser ablation and a Microwave Plasma Torch (MPT) were coupled in order to obtain elemental information from solid samples. The MPT was incorporated as a less costly and more portable alternative to the ICP. MPT was also added to help improve the signal from just the laser ablation alone.

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Rapid Identification of Microorganisms by Touch Spray and Paper Spray Ambient Ionization
Ahmed M. Hamid, Alan K. Jarmusch, Valentina Pirro and R. Graham Cooks

The rapid and accurate identification of microorganisms is necessary in order to improve public health. Molecular-based identification allows for rapid patient treatment and provides more accurate diagnoses, two crucial aspects for successful treatment, yet a great challenge. In this work PS-MS, an existing ambient method, and TS-MS, a newly developed technique, are being utilized in the rapid discrimination of microorganisms (<2 min).

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Showing Results 11 - 20 of 90
Scientific News
Embalming Study ‘Rewrites’ Key Chapter in Egyptian History
New evidence to suggest that the origins of mummification started in ancient Egypt 1,500 years earlier than previously thought.
Identification of Psoriatic Arthritis Mediators in Synovial Fluid
This study represents the most comprehensive proteomic analysis of psoriatic arthritis synovial fluid, to date.
Mass Spec-Based Metabolomics Workflows to Evaluate Plant Immunity
This article reviews metabolomics studies used to evaluate plant immunity with an emphasis on mass spectrometry in its many forms.
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.
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.
Mass Spec Predicts Improved Response to Anti-HER2 Therapy in Breast Cancer
Immunohistochemistry is the standard technique for detecting HER2 protein expression, it does not provide absolute quantification of this receptor and is prone to false-positives.
Mass Spectrometry Tool Helps Guide Brain Cancer Surgery
A tool to help brain surgeons test and more precisely remove cancerous tissue was successfully used during surgery, according to a Purdue University and Brigham and Women's Hospital study.
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.
Simultaneous Determination of Free Urinary Steroids
Researchers have described an LC–MS/MS method that accurate, precise and is in accordance with FDA guidelines.
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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