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

P1916-RT Multi-method pesticides in ready-to-eat babyfood

P1916-RT

Multi-method pesticides in ready-to-eat babyfood


P2001-RT Polar pesticides / contaminants in black tea

P2001-RT

Polar pesticides / contaminants in black tea


P2002-RT Polar pesticides (low levels, babyfood) in milk

P2002-RT

Polar pesticides (low levels, babyfood) in milk

New reference materials

Grapes - polar pesticides

P1910-RMGr

Grapes - polar pesticides


Grapes - blank

P1910-BLGr

Grapes - blank


Peach - dithiocarbamates

P1911-RMPe

Peach - dithiocarbamates

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