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

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


P2502-MRT MOSH/MOAH in cocoa butter and  chocolate bar

P2502-MRT

MOSH/MOAH in cocoa butter and chocolate bar

New reference materials

P2537-RMGw Groundwater - phenols (F27)

P2537-RMGw

Groundwater - phenols (F27)


P2537-BLGw Groundwater - blank

P2537-BLGw

Groundwater - blank


P2522-RMRc Red currant - pesticides

P2522-RMRc part of rolling proof

Red currant - pesticides

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