Polar pesticides in sesame seeds

Whole, non-milled seeds are provided as test material and blank material. The homogenisation (milling) of the sesame seeds is part of the ring test.

The basic module (chlorate, perchlorate, ethephon, glyphosate, nicotine) is included in the price of the ring test. The participants are free to choose the additional modules related to diquat and paraquat (module 1) and/or ethylene oxide (module 2).

The analytical data are assessed with respect to

the comparability (z-score), and
the trueness (70 to 120% of the spiked level, as far as applicable).

Parameters

Basic module

chlorate, perchlorate, ethephon, glyphosate, nicotine

Module 1

diquat, paraquat

Module 2

ethylene oxide, 2-chloroethanol, ethylene oxide (sum)

Expected time schedule

Please register before:
28 February 2026

Dispatch of samples:
04 May 2026

Deadline for reporting results:
20 May 2026

Costs of P2617-RT

Ring test and material	Amount	Price per unit
Polar pesticides in sesame seeds	–	820 €
Test material Sesame seeds, whole seeds, spiked.	150 g	included
Basic module chlorate, perchlorate, ethephon, glyphosate, nicotine.		included
Module 1 diquat, paraquat		200 €
Module 2 ethylene oxide / 2-chloroethanol		200 €
Blank material Sesame seeds, whole seeds, unspiked	100 g	70 €

Note: PROOF-ACS reserves the right to cancel tests in case of less than ten participants.