Quantify With Confidence and Screen for the Unexpected – New Tools and Workflows for Your Pesticide Analysis
On-Demand Until: December 6, 2013
Speaker: Dr. Thomas Glauner, EMA LC/MS Food Segment Scientist, Agilent Technologies
CAccurate mass LCMS analyzers become increasingly interesting for pesticide screening in food due to the significantly improved detection sensitivity. Modern LC-QTOF-MS instruments allow the analysis of most LCMS amenable pesticides much below the MRLs required by EU legislation. In addition qualitative screening with TOF analyzers does not always require to have expensive standards for each pesticide on hand.
Determination of Chlorinated Paraffins in Milk and Food Samples: Using an Optimized Extraction, Clean-up Regime and the Agilent 7000 Series Tandem Quadrupole GC-MS/MS System
On-Demand until: October 23, 2013
Chlorinated paraffins (CPs) are complex mixtures of polychlorinated n-alkanes. They are divided according to their carbon chain length into short chain CPs (C10 - C13, SCCPs), medium chain CPs (C14 - C17, MCCPs) and long chain CPs (C>17, LCCPs).
Profiling Trace Metals in Food
On-Demand until: October 9 2013
Speaker: Jack Cappozzo, Director of Chemistry, Institute for Food Safety & Health at ITT
In recent years, food safety has become a major focus for the general public, food industry and government agencies. The US government has taken steps to increase food safety by implementing HACCP (Hazard Analysis and Critical Control Points) a few years back and recently passing the Food Safety Modernization Act (FSMA).
Serovar Identification of Foodborne Pathogens
On-Demand until: September 25, 2013
Lenore Kelly, Sr. Application Chemist- Food Safety, Agilent Technologies Chemical Analysis Group
Dr. Bart Weimer Co-Director of BGI UC Davis School of Veterinary Medicine
Contamination of food with pathogenic or toxin producing bacteria or fungi are a major concern in food safety. It is estimated the annual costs associated with such contamination are $75 billion or more. To effectively recall contaminated food requires an organism such as Salmonella to be identified to the serovar level.
Evaluation of different multi residue extraction processes for extraction of pesticides from green tea, red tea, black tea and chamomile and analysis by GC MS/MS and LC MS/MS
On-Demand until: September 11, 2013
Three different and “well known” (QuECHERS, Ethyl Acetate and mini Luke) multi-residue methods were evaluated on tea samples fortified with 86 pesticides (insecticides, fungicides and herbicides). Due to matrix complexity some modifications in the extraction methods were considered. Analyses were performed by GC MS/MS and LC MS/MS.
An Automated System for the Analysis of Fatty Acid Methyl Esters (FAME) in Edible Oils
On-Demand until: June 12, 2013
Analytical laboratories moved from less sophisticated saturated distribution content analysis to more sophisticated separations of all fatty acid constituents, including separation of the isomers of cis and trans. AOAC and the AOCS have validated methods, 996.06 and Ce 1f-96, respectively, for sample preparation and analysis by gas chromatography with flame ionization detection (GC-FID). Traditionally the preparation of fatty acid methyl esters for GC has been a manual procedure requiring numerous hours of labor. This presentation will focus on the preparation of fatty acid methyl ester using and automated processing using an Agilent 7696 Work Bench and analysis by GC with MS and FID.p>