Screening and quantification of the residues of agrochemicals are important to ensure compliance of agricultual commodities to stringent food safety regulations. Efforts are always made to develop efficient, cost-effective analytical workflows to cover as much chemistry of pesticides, plant growth regulators, antibiotics, etc. as possible in a single method to provide rapid turn-around time, and improve precision and accuracy in analysis. In GC-MS, utilization of selective reaction monitoring transitions with increased mass resolution with the support of retention-time-locking, product ion library, backflush technology, etc. allow targeted screening of residues in addition to possibilities of non-target screening by GC(xGC)-ToFMS and GC-QToFMS with high sensitivity and reproducibility. In LC-MS, product ion based library allows simultaneous targeted screening and quantification, whereas, applications of LC-HRMS provide accurate mass based screening solutions, combining both qualitative and quantitative work?ows with interactive task-based workflow-driven chemometric data analysis software for comprehensive data management, review, information sharing and decision making.

Targeted and non-target screening and quantification of contaminant residues in agricultural commodities: Taking advantage of advanced analytical tools

248th National Meeting (2014)

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