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Selective Determination of Se4+ and Se6+ Using SPME and GC/MS (1999)

Guidotti, Maurizio ; Ravaioli, Guido ; Vitali, Matteo

Weinheim : Wiley-Blackwell

Journal of High Resolution Chromatography 22 (1999), S. 414-416

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ISSN: 0935-6304

Keywords: Selenium ; water ; SPME ; GC/MS ; Chemistry ; Analytical Chemistry and Spectroscopy

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: ---A method for the selective determination of Se4+ and Se6+ using solid phase microextraction (SPME) and GC/MS analysis is presented. Se4+ is selectively derivatized by reaction with 4,5-dichloro-1,2-phenylenediamine to form the corresponding piazselenolo complex, extracted by the SPME fiber, and determined by GC/MS. The RSD at a 5 μg/L concentration was 9.88% and the theoretical detection limit 6 ng/L. The method was employed to test real matrices; tap and river water were analyzed before and after spiking giving a recovery rate of 102% in river water and 97% in tap water.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

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