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

Author(s):  
Jens A. Jacobsen ◽  
Frank Stuer-Lauridsen ◽  
Gunnar Pritzl
1995 ◽  
Vol 78 (5) ◽  
pp. 1317-1321 ◽  
Author(s):  
Daniel Sharron ◽  
Kamal Swami ◽  
Robert L Jansing

Abstract A simplified purge-and-trap technique for detecting subnanogram amounts of the biocide tributyltin (TBT) and its degradation products dibutyltin (DBT) and monobutyltin (MBT) in aqueous environmental samples is described. Butyltin chlorides present in the sample were derivatized to volatile butyltin hydrides with NaBH4 and simultaneously purged by drawing ambient air through the purge vessel. Butyltin hydrides were trapped on a Porapak-N cartridge, eluted with dichloromethane, and analyzed by gas chromatography with flame photometric detection. Recoveries of the butyltin species ranged from 46 to 101%. Method detection limits for MBT, DBT, and TBT were 1.28, 0.39, and 0.24 ng/L, respectively. The major advantages of this technique are sensitivity, reduced analysis time, and a significant reduction in the amount of dichloromethane used. Results from the analysis of various surface water samples collected in New York are presented.


1996 ◽  
Vol 79 (1) ◽  
pp. 170-174 ◽  
Author(s):  
Kamal Swami ◽  
Rajinder S Narang

Abstract An analytical method for determining butyltin chlo rides in air at low nanogram-per-cubic-meter levels was developed. Butyltin chlorides investigated were mono-n-butyltin trichloride (MBTC),di-n-butyltin dichloride (DBTC), and tri-n-butyltin chlo ride (TBTC). These tin chlorides were trapped on cartridges packed with Porapak-N, eluted with methylene chloride containing 0.3% HCI, hy dridized with sodium borohydride, and analyzed by capillary gas chromatography with flame photometric detection. On the basis of a 20 m3 sample, a detection limit of 0.05 ng/m3 can be achieved.


2017 ◽  
Vol 9 (7) ◽  
pp. 1097-1104 ◽  
Author(s):  
Kaylan H. McKelvie ◽  
Kevin B. Thurbide

The properties of using a water stationary phase for analyzing organic sulfur compounds in capillary gas chromatography (GC) with a flame photometric detector (FPD) are presented.


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