Multiresidue Pesticide Analysis – Improving Peak Shape Consistency

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Multiresidue pesticide analysis has become the prevalent method for analysis of food products because it allows the simultaneous determination of multiple pesticides, the number of which is continuously increasing. QuEChERS is the preferred method for sample preparation. It reduces the matrix load, but does not produce a clean sample. Despite sample cleanup, pesticide analysis can suffer from reduced response and increasingly asymmetric peaks over time. Reducing batch size or increasing the frequency of inlet or column/retention gap maintenance can be a reasonable solution for conventional gas chromatograph systems.

The Agilent Intuvo 9000 Gas Chromatograph addresses these issues, and offers the
additional advantage of an innovative inert flow path.

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