Determination of Ultratrace Concentrations of Butyltin Compounds in Water by Simultaneous Hydridization/Extraction with GC-FPD Detection

摘要

An improved method for the ultratrace determination of butyltins in water by simultaneous hydridization/extraction followed by gas chromotography coupled with a flame photometric detector is reported. Detection limits for the new system are 5 ng/L tributyltin cation (TBT⁺). Effects of pH and salinity on the procedure are reported, and stability of the derivitized extracts is discussed.