Simultaneous determination of pesticides by multivariate spectral analysis and derivative spectrophotometry

✍ Scribed by A. Espinosa-Mansilla; A.Muñoz de la Peña; F. Salinas; A. Zamoro

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 531 KB
• Volume: 258
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(92)85196-d

✦ Synopsis

The quantltatlve predxtlve ablhhes of dertvatlve spectral analysis by usmg the zero-crossing pomt method are compared with the results obtamed by the use of a multlvarlate cahbratton method Matures of two pestlades (carbaryl and chlorpyrtios) were resolved by apphcatlon of derlvatlve spectrophotometry Partml least squares (PLS), a full spectrum cahbratlon method, was also apphed mth previous optmuzatlon of the calibration matrur by the PIS-2 method Both approaches were satlsfactorlly applied to the simultaneous determmatlon of carbaryl and cblorpynfos m commercial formulations The slmphaty of the derivative method makes it the method of cbotce for simple bmary mixtures