The atomic absorption spectrometric determination of indium in premixed inert gas (entrained air)-hydrogen flames

摘要: Abstract Indium can be determined more sensitively in argon (entrained air)— and nitrogen air)—hydrogen flames than air—acetylene or air—hydrogen flames. The indium sensitivity (for 1% absorption) is 0.075–0.082 p.p.m. at 303.9 nm the calibration graphs are linear up to 10 Many foreign elements interfere with determination, but addition of magnesium halides very effective eliminating interferences from other elements, exception silicon vanadium. This finding was satisfactorily applied determination some semi-conducting III–V compounds. It suggested that atoms produced cool by dissociation InH molecules, production which enhanced a large amount halide.