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Saturday, September 20, 2014
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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 21 - 30 of 42
Scientific News
Mass Spectrometry in Your Hand
Electrospray arrays can dramatically downsize systems and costs for onsite chemical analysis and many other applications.
What You Eat and Not Just the Number of Calories, is a Significant Factor in Diabetes Risk
New research in The FASEB Journal suggests that the postprandial levels of circulating metabolites in the blood of identical twins tends to be similar after a fast food meal, independent of weight difference.
Eating Habits, Body Fat Related to Brain Chemistry
NIH study ties eating in response to food cues to habit-forming region in obese adults.
Comparison of Caffeinated and Decaffeinated Coffee - Implications for Alzheimer's Disease
Researchers from the National University of Singapore successfully demonstrated the viability of GC-TOF-MS as an analytical platform for metabolomics analysis of coffee samples.
Lead and Cadmium Found in some Brazilian Chocolate
Commercial samples of chocolate purchased in Brazil have been found to contain varying levels of lead and cadmium.
Fighting Prostate Cancer with a Tomato-Rich Diet
New research suggests that men who eat over 10 portions of tomatoes a week have an 18% lower risk of developing prostate cancer.
Gut Bacteria that Protect Against Food Allergies Identified
Common gut bacteria prevent sensitization to allergens in a mouse model for peanut allergy, paving the way for probiotic therapies to treat food allergies.
How to Prevent Organic Food Fraud
A new test under development has the potential to authenticate organic tomatoes and other produce.
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.
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