AAS-ETA, ICP-AES and ICP-MS analysis of high purity indium using matrix separation by analytical autoclaves of a special design.
The potential of AAS-ETA, ICP-AES and ICP-MS methods in direct mode or with matrix separation are investigated for the analysis of high purity indium. Optimal conditions for the indium separation as difficult soluble oxychloride are established. Analytical autoclaves which allow to perform both digestion and separation procedures simultaneously are used for this purpose. Using the preconcentration method suggested the detection limit of a number of elements was reduced by a factor of 5-100 comparing to the direct determinations.
Grazhulene
S
S
Institute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, 142 432, Chernogolovka, Moscow distr., Russia.
Karandashev
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V
Zadnepruk
L
L
Orlova
V
V