Analysis of Low Levels of Bisphenol A (BPA) in Canned Broths
Poster Oct 29, 2014
Ken G. Espenschied, Michael Ye, Olga I. Shimelis, and Christine Dumas
This work presents a method that can be used for detection of very low levels of BPA in canned broth. Careful testing of blank samples, mobile phase and LC system components are recommended to circumvent BPA laboratory background. The method uses molecularly imprinted polymer SPE to extract and pre-concentrate BPA. The background BPA levels in this study were found to be below 0.2 ng/mL in the final sample. Analysis was performed using LC with fluorescence detection. Recovery of BPA from chicken broth spiked to 60 ng/mL was 72.5%. Recovery of BPA from beef broth spiked at 5 ng/mL was 75%. Another unfortified sample of beef broth was analyzed and found to contain BPA at levels greater than 60 ng/mL.
Overcoming the Challenges of Analysing Ionic Polar Pesticides in FoodPoster
Here, the novel application of the Waters’ Torus DEA column is presented, showing the improved performance of a UPLC-MS/MS method for the underivatised
analysis of glyphosate and a selection of other anionic pesticides.
A New Tool for the Automated Sample Preparation of Whole Blood Samples by LC-MS using a Commercial AutosamplerPoster
Automated sample preparation reduces the costs per sample and minimizes sample handling errors. Usually expensive and highly specialized pipetting robots are used. However, most of these systems are not designed with a direct interface for LC-MS applications. In addition common pipetting systems are not optimized for smaller scale sample series. Here we present a new tool for liquid handling of whole blood samples and direct sample injection.READ MORE
Multi-Residue Pesticide Analysis in Food Matrices Using Ultivo Triple Quad LC/MSPoster
Regulatory agencies have set maximum residue levels for hundreds of pesticides and their metabolites in foods.READ MORE