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P1914-RT Pyrrolizidine alkaloids in chamomile tea


PROOF-ACS organises and performs a ring test related to pyrrolizidine alkaloids in chamomile tea in May 2019.

Chamomile tea (powder, min. 50 g) is provided as test material. The test material contains spiked and incurred levels of pyrrolizidine alkaloids.

The aim of the test is

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

The scope of the test is defined by the so-called BfR28 pyrrolizidine alkaloids: 

  • Echimidine (Em) and echimidine-N-oxide (EmN)
  • Erucifoline (Er) and erucifoline-N-oxide (ErN)
  • Europine (Eu) and europine-N-oxide (EuN)
  • Heliotrine (Hn) and heliotrine-N-oxide (HnN)
  • Intermedine (Im) and intermedine-N-oxide (ImN)
  • Jacobine (Jb) and jacobine-N-oxide (JbN)
  • Lasiocarpine (Lc) and lasiocarpine-N-oxide (LcN)
  • Monocrotaline (Mc) and monocrotaline-N-oxide (McN)
  • Retrorsine (Re) and retrorsine-N-oxide (ReN)
  • Senecionine (Sc) and senecionine-N-oxide (ScN)
  • Seneciphylline (Sp) and seneciphylline-N-oxide (SpN)
  • Senecivernine (Sv) and senecivernine-N-oxide (SvN)
  • Senekirkine (Sk)
  • Trichodesmine (Td)

Time schedule:

  • Please register before:
    15 February 2019
  • Dispatch of samples:
    20 May 2019
  • Deadline for reporting results:
    18 June 2019

The participation fee is 790 EUR.

The test material is shipped by express courier. Shipping costs are included for shipment to EU countries. Additional shipping costs may apply for shipment to Non-EU countries.
Please feel free to contact us to get an individual quote. 

Please feel free place your orders via the Order/login section on the website.

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