乙拌磷砜

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
Disulfoton-sulfone is an oxidative metabolite of the organophosphorus insecticide disulfoton.
The European Union regulations define a maximum residue limit (MRL) of 0.01 mg/kg for disulfoton in foods of plant origin which is taken as a sum of disulfoton, disulfoton sulfoxide, and disulfoton sulfone. Currently, disulfoton is not allowed for its use in the European Union and also has restrictions over its use in the USA by American Environmental Protection Agency (EPA).

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

• Determination of disulfoton and its five metabolites in human blood and urine samples by QuEChERS extraction followed by liquid chromatography-tandem mass spectrometric analysis
• Method development for the analysis of 15 organophosphorus pesticides and their metabolites in water samples using multiwalled carbon nanotubes based dispersive solid phase extraction and gas chromatography-nitrogen phosphorus detector (GC-NPD)
• Simultaneous determination of 15 organophosphorus pesticides and their metabolites in cereal-based baby food samples using multi-walled carbon nanotubes based dispersive solid phase extraction and gas chromatography-nitrogen phosphorus detector (GC-NPD)
• Analysis of 11 pesticides and 4 of their metabolites in chickpeas and barley flours using a modified QuEChERS extraction and GC-NPD determination
• Multi-residue determination of 60 pesticides in hen egg samples by liquid-chromatography and gas chromatography with tandem mass spectrometry, in combination with QuEChERS based sample pre-treatment
• Method development to quantify 49 organophosphorus pesticide residues and 10 of their metabolites in fish, egg, and milk samples by means of dual gas chromatography-dual pulse flame photometric detection

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

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