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Speciation Analysis of Butyltin Species in Water by Gas Chromatography with Flame Photometric Detection Using Quartz Surface‐induced Tin Emission
Author(s) -
Jiang G. B.,
Xu F. Z.
Publication year - 1996
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/(sici)1099-0739(199603)10:2<77::aid-aoc482>3.0.co;2-7
Subject(s) - chemistry , detection limit , analytical chemistry (journal) , gas chromatography , volumetric flow rate , tin , quartz , tributyltin , atomic emission spectroscopy , chromatography , environmental chemistry , organic chemistry , inductively coupled plasma , paleontology , physics , plasma , quantum mechanics , biology
A flame photometric detector using quartz surface‐induced tin emission was designed and evaluated for quantification analysis of butyltin species. It has been demonstrated that this quartz surface‐induced tin emission, centred at 390 nm, is more sensitive than the commonly used gas‐phase emission at 610 nm. The dependence of detector response on quartz enclosure was studied. The operational variables such as hydrogen–air flow rate, carrier‐gas flow rate and purge‐gas flow rate were optimized. An analytical procedure for speciation analysis of butyltin species in water using simultaneous hydride generation with sodium borohydride and extraction into dichloromethane was established. The detection limits (defined as the signals that equal three times the deviations of the noise) were 0.3 pg of Sn for tetrabutyltin (TeBT), 5 pg of Sn for monobutyltin (MBT), 18 pg of Sn for dibutyltin (DBT) and 2 pg of Sn for tributyltin (TBT), which are approximately 10‐ to 30‐fold better than those reported for using more commonly used gas‐phase emission centred at 610 nm.