Facing analytical quality.

Compe­tence schemes

beyond beaten paths and tailored to your needs

rolling proof

comprehensive quality monitoring of multi-residue methods

Reference materials

for up-to-date parameters

Next ring tests

P2520-RT Multi-method pesticides, QACs, chlorate, perchlorate, nicotine, and bromide in chicken egg

P2520-RT

Multi-method pesticides, QACs, chlorate, perchlorate, nicotine, and bromide in chicken egg


P2521-RT / P2522-RT Multi-method pesticides in banana and red currant (part of rolling proof)

P2521-RT / P2522-RT part of rolling proof

Multi-method pesticides in banana and red currant (part of rolling proof)


P2534-RT Cannabinoids, phthalates and plasticizers, PAHs, and heavy metals and toxic metals in face cream

P2534-RT

Cannabinoids, phthalates and plasticizers, PAHs, and heavy metals and toxic metals in face cream

New reference materials

P2403-RMGt Green tea, with levels of MOSH and MOAH

P2403-RMGt

Green tea, with levels of MOSH and MOAH


P2403-RMPa Paprika (spice) - MOSH and MOAH (spiked)

P2403-RMPa

Paprika (spice) - MOSH and MOAH (spiked)


P2403-BLPa Paprika (spice) - blank

P2403-BLPa

Paprika (spice) - blank

Birgit Schindler

About PROOF-ACS

PROOF offers high-quality, up-to-date competence schemes, tailored to customers’ needs. We always go the extra mile for providing reliable services: Careful selection of test parameters, concentration levels and choice of matrix are core to the design of PROOF competence schemes. The scientifically based evaluations go far beyond a sole statistical evaluation.

PROOF-ACS was founded in 2012 as a spin-off of „Lach & Bruns Partnerschaft“.

Dr. Birgit Schindler
Analytical Chemist
Fachtoxikologin DGPT
European Registered Toxicologist