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

P2519-RT Polar pesticides, QACs, and acidic herbicides in ice cream

P2519-RT

Polar pesticides, QACs, and acidic herbicides in ice cream


P2523-RT Multi-method pesticides in green tea (part of rolling proof)

P2523-RT part of rolling proof

Multi-method pesticides in green tea (part of rolling proof)


P2507-RT Pyrrolizidine alkaloids and tropane alkaloids in cumin

P2507-RT

Pyrrolizidine alkaloids and tropane alkaloids in cumin

New reference materials

P2515-RMGt Green tea - polar pesticides and contaminants

P2515-RMGt

Green tea - polar pesticides and contaminants


P2515-BLGt Green tea - blank

P2515-BLGt

Green tea - blank


P2528-RMHb Honey blend - Honey-Profiling

P2528-RMHb

Honey blend - Honey-Profiling

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