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

P2003-RT Polar pesticides in raspberries

P2003-RT

Polar pesticides in raspberries


P2004-RT Polar pesticides in sweet peppers

P2004-RT

Polar pesticides in sweet peppers


P2005-RT Polar pesticides in soybean flour

P2005-RT

Polar pesticides in soybean flour

New reference materials

P2002-RMMi Milk - polar pesticides

P2002-RMMi

Milk - polar pesticides


P2002-BLMi Milk - blank

P2002-BLMi

Milk - blank


P2001-RMTea Black tea - polar pesticides and contaminants

P2001-RMTea

Black 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