This certified reference material (CRM) is produced and certified in accordance with ISO/IEC 17025 and ISO 17034. This CRM is traceable to primary material from an NMI, e.g. NIST or NMIJ.
Certified content by quantitative NMR incl. uncertainty and expiry date are given on the certificate.
Download your certificate at: http://www.sigma-aldrich.com
Metalaxyl Metabolite CGA 108906 is a benzoic acid derivative of the fungicide metalaxyl, formed upon its oxidation.
The Reg. (EU) 2017/1164 sets a maximum residue limit (MRL) of 0.7 mg/kg and 0.01 mg/kg in fresh/frozen fruits and tree nuts respectively for metalaxyl that includes its other mixtures of constituent isomers including metalaxyl-M (sum of isomers). Metalaxyl has to be monitored in the Multiannual Control Programme for Pesticides Residues (MACP), run within the EU and EFTA in/on products of plant origin.

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques.
The metalaxyl Metabolite CGA 108906 CRM may also find the following uses:

• Analysis of insecticide and fungicide residues in soil samples by pressurized liquid extraction (PLE) accompanied by liquid chromatography-tandem mass spectrometry (LC-MS/MS) determination
• Development of a multi-residue method for the determination of 150 pesticide metabolites in ground and surface water by direct injection-liquid chromatography-electrospray ionization-tandem mass spectrometry (DI-LC-ESI-MS/MS)

TraceCERT is a registered trademark of Merck KGaA, Darmstadt, Germany