Improvements in the chemical generation of chlorine and bromine, and their respective hydrides as a means of sample introduction into an atmospheric pressure helium microwave-induced plasma

Abstract

Chlorine and bromine, and their respective hydrides have been generated chemically from aqueous solution with a variety of reagents. The emission from the analytes was monitored at the following spectral lines: Cl II 479.455 nm and Br II 470.485 nm. Detection limits for the Cl₂, HCl, Br₂ and HBr generations were 0.6 ng of Cl, 0.3 ng of Cl, 0.09 ng of Br and 1.2 ng of Br, respectively, for aqueous solutions.