Examination of various dissolution methods for the quantitative analysis of Ir-based alloys

Yoshinobu Yamamoto; Yoko Yamabe-Mitarai; Chen Huang; Tomohiro Maruko; Naoto Hirosaki; Hiroshi Harada

doi:10.2116/bunsekikagaku.51.181

Examination of various dissolution methods for the quantitative analysis of Ir-based alloys

Yoshinobu Yamamoto, Yoko Yamabe-Mitarai, Chen Huang, Tomohiro Maruko, Naoto Hirosaki, Hiroshi Harada

Integrated Research Division

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

It is well known that Ir is a chemically stable element that is difficult to dissolve even in a strong acid. Furthermore, when transition metals are added to it, Ir becomes more difficult to dissolve in acid. To solve this problem, we tried to dissolve Ir alloys including several transition metals using a fusion method at 800°C in sodium peroxide. We found that, when the powder size of a sample was sufficiently small, under 75 μm, Ir alloys could be dissolved. We also showed that it is possible to analyze the composition of Ir alloys using the solution with ICP-AES.

Original language	English
Pages (from-to)	181-185
Number of pages	5
Journal	BUNSEKI KAGAKU
Volume	51
Issue number	3
DOIs	https://doi.org/10.2116/bunsekikagaku.51.181
Publication status	Published - 2002 Mar

Keywords

Dissolving method
Fusion method
ICP-AES
Ir-alloy
Sodium peroxide

ASJC Scopus subject areas

Analytical Chemistry

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abstract = "It is well known that Ir is a chemically stable element that is difficult to dissolve even in a strong acid. Furthermore, when transition metals are added to it, Ir becomes more difficult to dissolve in acid. To solve this problem, we tried to dissolve Ir alloys including several transition metals using a fusion method at 800°C in sodium peroxide. We found that, when the powder size of a sample was sufficiently small, under 75 μm, Ir alloys could be dissolved. We also showed that it is possible to analyze the composition of Ir alloys using the solution with ICP-AES.",

keywords = "Dissolving method, Fusion method, ICP-AES, Ir-alloy, Sodium peroxide",

author = "Yoshinobu Yamamoto and Yoko Yamabe-Mitarai and Chen Huang and Tomohiro Maruko and Naoto Hirosaki and Hiroshi Harada",

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T1 - Examination of various dissolution methods for the quantitative analysis of Ir-based alloys

AU - Yamamoto, Yoshinobu

AU - Yamabe-Mitarai, Yoko

AU - Huang, Chen

AU - Maruko, Tomohiro

AU - Hirosaki, Naoto

AU - Harada, Hiroshi

PY - 2002/3

Y1 - 2002/3

N2 - It is well known that Ir is a chemically stable element that is difficult to dissolve even in a strong acid. Furthermore, when transition metals are added to it, Ir becomes more difficult to dissolve in acid. To solve this problem, we tried to dissolve Ir alloys including several transition metals using a fusion method at 800°C in sodium peroxide. We found that, when the powder size of a sample was sufficiently small, under 75 μm, Ir alloys could be dissolved. We also showed that it is possible to analyze the composition of Ir alloys using the solution with ICP-AES.

AB - It is well known that Ir is a chemically stable element that is difficult to dissolve even in a strong acid. Furthermore, when transition metals are added to it, Ir becomes more difficult to dissolve in acid. To solve this problem, we tried to dissolve Ir alloys including several transition metals using a fusion method at 800°C in sodium peroxide. We found that, when the powder size of a sample was sufficiently small, under 75 μm, Ir alloys could be dissolved. We also showed that it is possible to analyze the composition of Ir alloys using the solution with ICP-AES.

KW - Dissolving method

KW - Fusion method

KW - ICP-AES

KW - Ir-alloy

KW - Sodium peroxide

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