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Diflubenzuron or difluron mass spectrum

Posted: Wed Jun 10, 2009 4:32 pm
by Rick
Hi!
I need your help
I need to analyse Diflubenzuron CAS number: 35367-38-5, pesticide product with GC/MS.
I have obtain a pic and a mass spectrum but the spectrum is different from NIST08 database mass spectrum, but NIST have only one contributor.
NIST indicate a major mass at 113 / 127 /141 / 153 /155 and i have a mass at 113 / 141 / 157.
What do you think about that?
Is it a decomposition product or it is ok.?

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