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Thursday, November 27, 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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Exploring The Benefits Of Automated Unattended Sample Derivatization Prior To Gas Chromatography Analysis
A. Caruso, M. Santoro, P. Magni, S. Pelagatti, R. Facchetti

Purpose: Exploring the possibility to perform the sample preparation steps necessary for the derivatization of analytes in a fully automated and reliable way by means of the same robotic sampler used for sample injection into the gas chromatograph.
Methods: As an example of application we screened dairy products for melamine and its derivates presence via GC-MS/MS.
Results: The outcome are good and precise results that show how it is possible to reliably automate sample preparation opera

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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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Automated, Rapid And Reliable Determination Of Dissolved Gases In Water By Static Headspace – Gas Chromatography
A. Caruso, M. Santoro, F. Bedini, P. Magni, S. Pelagatti

Purpose: Exploring the possibility to perform a quantitative determination of dissolved gases in water in a reliable and accurate way. Methods: The quantification of dissolved gases is performed by building a calibration curve spiking blank water samples with increasing quantities of saturated water followed by headspace sampling and GC/ FID analysis. Results: The results show good correlation factors and limit of quantification lower than 10ppb for the four gas analyzed.

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Characterization of Antibody-Drug Conjugates by SEC with Combined Light Scattering
Chris C. Broomell

Drug Antibody Ratio (DAR) is a critical factor to the effective design of antibody-drug conjugates (ADC). This poster presents a method for DAR determination based on SEC-MALS in conjunction with UV absorption and differential refractive index detection.

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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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Trace Level Analysis of Perchlorate and Bromate in Various Water Matrices using Suppressed Ion Chromatography
Dr. Jay Gandhi, DR. Stuart Procter

Bromate and Perchlorate are ubiquitous analytes in various water matrices and analysis in trace level is a challenge

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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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Employing Design of Experiments (DoE) to Evaluate the Robustness of an Automated Content Uniformity Method for the Triple Fixed Dose Combination Tablets
Irena Maksimovic, Dongsheng Bu, David Lloyd

The Design of Experiments study was employed to optimize the operating ranges of the critical sample extraction parameters for the content uniformity determination of three actives in Triple Fixed Dose Combination tablets using Tablet Processing Workstation bench-top robotic system.

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Showing Results 21 - 30 of 63
Scientific News
Proteomics for Systems Toxicology
MS-based proteomics is maturing into a robust technology for the measurement of proteome-wide exposure effects.
Photodynamic Therapy as a Novel Treatment for Halitosis in Adolescents
Researchers evaluated the use of photodynamic therapy for halitosis by analysing volatile sulfur compounds using gas chromatography.
Mass Spec Sample Prep Cut From Days to Minutes
The method, developed by Livermore scientists, accommodates liquid samples and bypasses the graphitization process, enabling sample preparation and analysis in minutes.
Device Could Detect Vapors In Room, Environment or a Person’s Breath
Researchers have received an NSF grant to build a handheld device to analyze a person’s breath and reveal whether certain dangerous gases are present that need more immediate medical attention.
Cracking the Mysteries of Walnut Research
Researchers with North Carolina State University’s Plants for Human Health Institute have developed a unique methodology for exploring walnut phytochemicals.
Single-Step Isolation of Extracellular Vesicles by SEC
Researchers from the University of Amsterdam have developed a single-step protocol to isolate vesicles from human body fluids.
Detecting Pharmaceutical and Personal Care Products in Water
A simple, more convenient method than conventional guidelines.
A Novel Method for Portable Detection of Potent Drugs Known as ‘Bath Salts’
Researchers developed a low-cost, disposable and rapid platform for detecting bath salts.
Study Aims to Develop Breath Test for COPD
A new clinical iniative, lead by NYU Langone Medical Center, aims to determine a breath test’s effectiveness to identify volatile organic compounds (VOCs) in human breath that are biomarkers of chronic obstructive pulmonary disease (COPD).
Salamander Skin Peptide Promotes Wound Healing in Mice
New research suggests that the peptide tylotoin exerts the promotion of wound healing with epidermal growth factor in a murine model of a full thickness dermal wound.
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