Here is our checklist style protocol based on the AOAC 2007.01 QuEChERS method.

The document describes producing spiked samples at 10 ppb and no spiked samples that are used to determine incurred pesticides. Commodity samples that are not spiked as also used to product matrix-matched standards.

During method development we usually test more than one dSPE formulation. One is the Universal tube  which is a good general use cleanup tube. The second dSPE formulation is chosen based on the food type and considerations for pesticides. There are guidelines on choosing a cleanup tube in the QuEChERS: A Primer article. Our AOAC QuEChERS method instruction sheet is useful too.

Find the EN and Original Unbuffered protocol here.

Tags: AOAC 2007.01, pesticide residues, pesticides, QuEChERS, sample clean-up, sample prep

This entry was posted on Tuesday, May 20th, 2014 at 6:13 pm and is filed under Food, Pesticides, QuEChERS, Sample Cleanup, Tips & Tricks. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.