P2217-RT

Polar pesticides/contaminants in black tea

 

Ring test P2217-RT is designed to cover the most frequent polar pesticides and contaminants in black tea. 

The test material consists of black tea (milled, 75 g), spiked with

  • anthraquinone,
  • biphenyl,
  • chlorate and perchlorate,
  • nicotine,
  • glyphosate, AMPA, and trimesium,
  • diquat and paraquat,
  • matrine and oxymatrine.

The basic module (anthraquinone, biphenyl, chlorate, perchlorate, and nicotine) is included in the price of the ring test. The participants are free to choose the additional modules glyphosate, AMPA, and trimesium (module 1), diquat and paraquat (module 2), and matrine and oxymatrine (module 3). 

The analytical data are assessed with respect to

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

Parameters

Basic module

anthraquinone, biphenyl, chlorate, perchlorate, nicotine

Module 1

glyphosate, AMPA, trimesium

Module 2

diquat, paraquat

Module 3

matrine, oxymatrine

Expected time schedule

Please register before:
01 July 2022
Dispatch of samples:
17 October 2022
Deadline for reporting results:
02 November 2023

Costs of P2217-RT

Ring test and material Amount Price per unit
Polar pesticides/contaminants in black tea 750 €
Test material
Black tea, milled, spiked.
75 g included
Basic module
anthraquinone, biphenyl, chlorate, perchlorate, nicotine
included
Module 1
glyphosate, AMPA, trimesium
200 €
Module 2
diquat, paraquat
200 €
Module 3
matrine, oxymatrine
200 €
Blank material
Black tea, milled, unspiked.
75 g included

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