Polar pesticides in chia seeds

Non-homogenised chia seeds (100 g) are offered as test material of P2211-RT.

The chia seeds are spiked with

• chlorate and perchlorate,
• glyphosate,
• phosphonic acid,
• nicotine,
• diquat and paraquat,
• morpholine, diethanolamine, triethanolamine,
• a selection of quaternary ammonium compounds (BAC C-8 to C-18 and DDAC C-8 to C-12).

The aim of the ring test is

• the identification of the spiked quaternary ammonium compounds,
• the correct quantification with respect to the
  comparability criterion (z-score ≤ |2|), and
• the correct quantification with respect to the
  trueness criterion (70-120 % recovery of the spiked level).

Laboratories are free to choose the basic module only or combined with one or more of the additional modules. 

Reporting limits of 0.01 mg/kg are required for all parameters.