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

P2312-RT Acidic herbicides (with hydrolysis) and ethylene oxide in sesame seeds

P2312-RT

Acidic herbicides (with hydrolysis) and ethylene oxide in sesame seeds


P2319-RT Pesticides typical for citrus fruits

P2319-RT

Pesticides typical for citrus fruits


P2301-MRT MOSH/MOAH in edible oils (LC-GC-FID)

P2301-MRT

MOSH/MOAH in edible oils (LC-GC-FID)

New reference materials

P2223-RMIce2 Ice cream powder - ethylene oxide

P2223-RMIce2

Ice cream powder - ethylene oxide


P2208-RMLi Lime - acidic herbicides (incl. esters and glucosides)

P2208-RMLi

Lime - acidic herbicides (incl. esters and glucosides)


P2208-BLLi Lime - blank

P2208-BLLi

Lime - 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