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

P2531-RT Cannabinoids in hemp (cannabis) seeds

P2531-RT

Cannabinoids in hemp (cannabis) seeds


P2533-RT Heavy metals, toxic metals and moisture content in dried hemp (cannabis) leaves

P2533-RT

Heavy metals, toxic metals and moisture content in dried hemp (cannabis) leaves


P2535-MRT Styrene and styrene oligomers in food simulant D2

P2535-MRT

Styrene and styrene oligomers in food simulant D2

New reference materials

P2513-RMFp Fruit pouches - polar pesticides, QACs, amino alcohols

P2513-RMFp

Fruit pouches - polar pesticides, QACs, amino alcohols


P2513-BLFp Fruit pouches - blank

P2513-BLFp

Fruit pouches - blank


P2515-RMGt Green tea - polar pesticides and contaminants

P2515-RMGt

Green tea - polar pesticides and contaminants

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