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

P2406-MRT MOSH/MOAH in infant formula (identification, GCxGC-TOF-MS)

P2406-MRT

MOSH/MOAH in infant formula (identification, GCxGC-TOF-MS)


P2417-RT Dithiocarbamates and/or dithianon in lettuce and pear

P2417-RT

Dithiocarbamates and/or dithianon in lettuce and pear


P2420-RT Ethylene oxide in peppercorn (piper nigrum)

P2420-RT

Ethylene oxide in peppercorn (piper nigrum)

New reference materials

RMPMO001 Analytical reference material - MOSH/MOAH

RMPMO001

Analytical reference material - MOSH/MOAH


P2424-RMWn Walnut - pesticides, bromide

P2424-RMWn

Walnut - pesticides, bromide


P2424-BLWn Walnut - blank

P2424-BLWn

Walnut - 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