乙草胺

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

Acetochlor belongs to the class of chloroacetamide herbicides, widely used against annual grass and broadleaf weeds. A long-chain fatty acid inhibitor, it is used for pre-emergence and pre-plant control in crops such as maize, peanuts, soybeans, cotton, potatoes, and sugarcane.
According to the Commission Implementing Regulation (EU) No 1372/2011 of 21^st December 2011, acetochlor is not approved for use in the European Union (EU) as a plant protection agent, following Regulation (EC) No. 1107/2009. But maximum residue levels of 0.02 mg/kg and 0.05 mg/kg are allowed for its presence in frozen/fresh fruits and tree nuts respectively, according to the EU Reg. No 2015/603.

The certified reference material (CRM) is intended to be used as a calibrant for chromatography and other analytical techniques.
Acetochlor CRM may also be used as given below:

• To develop a method for quantifying acetochlor and its metabolites in soybean and corn samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS)
• QuEChERS-based sample preparation and ultra high-performance liquid chromatographic-tandem mass spectrometric (UHPLC-MS/MS) detection of clomazone and acetochlor residues in soybean samples
• Analyze a modified QuEChERS-based sample extraction and clean-up method followed by validation using gas chromatography-tandem mass spectrometry (GC-MS/MS analysis) to determine 176 pesticide residues from different chemical classes in fatty matrices
• Development of a sample treatment method based on ultrasound-assisted solvent extraction and solid-phase extraction clean-up for the quantification of five amide herbicides in fish samples by gas chromatography-electron capture detection (GC-ECD)
• Simultaneous residue analysis of 42 pesticides in four egg samples using extraction based on the QuEChERS method and determination by UHPLC-MS/MS and GC-MS
• Analysis of 20 herbicides in human blood samples by liquid-liquid extraction combined with ultra-pressure liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS)

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