Organotin speciation in environmental samples by capillary gas chromatography and pulsed flame photometric detection (PFPD)

✍ Scribed by Jens A. Jacobsen; Frank Stuer-Lauridsen; Gunnar Pritzl

• Publisher: John Wiley and Sons
• Year: 1997
• Tongue: English
• Weight: 61 KB
• Volume: 11
• Category: Article
• ISSN: 0268-2605
• DOI: 10.1002/(sici)1099-0739(199709)11:9<737::aid-aoc640>3.0.co;2-l

✦ Synopsis

Pulsed flame photometric detection (PFPD) for gas chromatography was applied to organotin compounds as standards and in environmental samples. Ethylated organotin species (n-propyl-, n-butyl-and phenyl-) were extracted from spiked artificial seawater and from an environmental sample. Selectivity towards tin is shown in the analysis of highly polluted seawater samples from a commercial port where no significant interferences are found. The self-cleaning capability and longterm stability of PFPD is shown in this work during 140 days of continuous operation. The absolute limit of detection for this capillary GC-PFPD technique ranged from 0.2 to 0.4 pg (Sn) for tetraethyl-to tetraphenyl-tin, allowing determination of sub-nanogram/litre concentrations of organotin compounds.