P2417-RT

Dithiocarbamates and/or dithianon in lettuce and pear

The proficiency test evaluates the performances of laboratories with respect to their ability to quantify dithiocarbamates as CS2 and/or dithianon.

Two test materials and the corresponding blank materials are offered:

  • a lettuce homogenate, and
  • a pear homogenate.

The participants are free to choose one or both materials and to analyse dithiocarbamates and dithianon or one of the parameters only. 

The test materials are prepared with liquid nitrogen. The sophisticated procedure of test material preparation reduces the degradation of dithiocarbamates resp. dithianon to the absolute minimum. The test material consists of a powdery ice. Therefore, sub-samples can be taken without thawing the test samples.

Reporting limits of 0.01 mg/kg are required related to dithiocarbamates and dithianon.

Parameters

Test material lettuce - dithiocarbamates

dithiocarbamates, expressed as CS2

Test material lettuce - dithianon

dithianon

Test material pear - dithiocarbamates

dithiocarbamates, expressed as CS2

Test material pear - dithianon

dithianon

Expected time schedule

Please register before:
01 July 2024
Dispatch of samples:
11 November 2024
Deadline for reporting results:
19 November 2024

Costs of P2417-RT

Ring test and material Amount Price per unit
Dithiocarbamates and/or dithianon in lettuce and pear 600 €
Basic price
Organisation, preparation of the homogenates, shipment, evaluation.
included
Test material lettuce - dithiocarbamates
Lettuce homogenate, spiked with dithiocarbamates
80 g 180 €
Test material lettuce - dithianon
Lettuce homogenate, spiked with dithianon
80 g 180 €
Blank material
Lettuce homogenate, unspiked.
40 g 70 €
Test material pear - dithiocarbamates
Pear homogenate, spiked with dithiocarbamates
80 g 180 €
Test material pear - dithianon
Pear homogenate, spiked with dithianon.
80 g 180 €
Blank material
Pear homogenate, unspiked
40 g 70 €

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