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Application of 7N In as secondary cathode for the direct current‐glow discharge mass spectrometry analysis of solid, fused high‐purity quartz
Author(s) -
Busam Jochen,
Stokkan Gaute,
Muggerud Astrid Marie F.,
Di Sabatino Marisa
Publication year - 2021
Publication title -
journal of mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 1076-5174
DOI - 10.1002/jms.4771
Subject(s) - chemistry , quartz , impurity , glow discharge , cathode , analytical chemistry (journal) , mass spectrometry , indium , chromatography , metallurgy , plasma , materials science , physics , organic chemistry , quantum mechanics
Direct current glow discharge mass spectrometry with an indium‐based secondary cathode technique is used to analyze solid, nonconducting, fused high‐purity quartz regarding metallic impurities of relevance to the solar industry. Details of the analytical routines are presented. In this work, the secondary cathode design and glow discharge conditions are optimized beyond the commonly applied practices. In addition, relative sensitivity factors (RSFs) for these optimized conditions are established and compared to previously published results. The results indicate that the technique enables stable measurements with detection limits down to the part per billion (ppb) range.