Comparison of Direct Injection and Online SPE for Quantification by LC/MS of Trace-Level Herbicides in Water
5 Jul 2013

This Application Note demonstrates the use of the Agilent 1200 Infinity Series Online-SPE solution combined with triple quadrupole mass spectrometric detection for the analysis of herbicides at trace levels down to 1 part per trillion (ppt) in surface and drinking water. The analysis of a sequence of samples including calibration, quality controls and recovery control samples will be demonstrated. To perform the control of the trapping process, a valve solution for direct on-column injection and subsequent online SPE is described.

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