Abstract
The cross-flow nebulizer and the thermospray vaporizer can both be used as an interface for coupling high performance liquid chromatography with inductively coupled plasma-atomic emission spectrometry. The dispersion and the peak asymmetry are acceptable for both. With the thermospray system the sensitivity is threefold higher and the fraction of methanol in methanol/water mixtures introduced into the plasma can be as high as 75%, compared with 25% for the cross-flow nebulizer. Initial results obtained for the speciation of selenium in (CH 3) 3Se +, SeO 3 2− and SeO 4 2− are promising.
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