P2419-RT

Ethylene oxide, PCP and multi-method pesticides in guar gum

Contamination of several food additives like guar gum, locust bean gum, and carob gum with ethylene oxide resp. 2-chloroethanol were the cause of several product recalls over the last years. Contamination of guar gum with PCP was also reported repeatedly. Furthermore, pesticide residues can be found in guar gum as well. 

Ring test P2428-RT consists of three different modules, which can be booked individually: 

  • module 1: pesticides, included in common multi-residue methods
  • module 2: ethylene oxide resp. 2-chloroethanol
  • module 3: pentachlorophenol (PCP)

The analytical data are assessed with respect to

  • the correct identification of multi-method pesticides
  • the correct quantification of multi-method pesticides, 2-chloroethanol, and PCP with respect to the comparability criterion (z-score), and
  • the correct quantification of multi-method pesticides, 2-chloroethanol, and PCP with respect to the trueness criterion (70-120 % recovery of the spiked level).

 

Parameters

Module 2 - ethylene oxide / 2-chloroethanol

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

Module 3 - PCP

pentachlorophenol (PCP)

Expected time schedule

Please register before:
15 December 2023
Dispatch of samples:
18 March 2024
Deadline for reporting results:
10 April 2024

Costs of P2419-RT

Ring test and material Amount Price per unit
Ethylene oxide, PCP and multi-method pesticides in guar gum 450 €
Basic price
for organisation, shipment, reporting
50 g included
Module 1 - common multi-method pesticides
Spiked with common multi-method pesticides.
300 €
Module 2 - ethylene oxide / 2-chloroethanol
Spiked with 2-chloroethanol.
200 €
Module 3 - PCP
Spiked with pentachlorophenol.
200 €
Blank material
Guar gum, unspiked
50 g 70 €

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