Determination of lead in standard rocks by graphite furnace AAS
著者
松本, 哲一
(Matsumoto, Akikazu)
青山学院大学理工学部
斉藤, 裕子
(Saito, Yuko)
青山学院大学理工学部
平尾, 良光
(Hirao, Yoshimitsu)
青山学院大学理工学部
木村, 幹
(Kimura, Kan)
青山学院大学理工学部
出版地
東京
出版者
日本分析化学会
日付
出版年
: -
作成日
:
更新日
:
記録日
: 2013-02-22
形態
上位タイトル
分析化学
Vol.37,
No.2
(1988.
2)
,p.112-
115
識別番号
ISSN
05251931
DOI
URI
抄録
This article is a supplemental report for the determination of lead which has not yet be obtained for some of the standard rocks of GSJ in the earlier report. The sample was completely decomposed by gradual heating with HF, HNO_3 and HClO_4, and evaporated to dryness. In this report, the decomposing conditions for such special rocks as JF-1 and JP-1 were again examined. The decomposed sample was dissolved in 0.5 M HBr, spiked with ^<212>Pb and was passed through a column of Bio Rad AGl-X8 100〜200 mesh (4 mm i. d.×4 cm h). Lead retained on the column was eluted with 6 M HCl after washing the column with 0.5 M HBr. The column yield of the purified lead solution was measured using ^<212>Pb activity and then subjected to the lead concentration measurement by GFAAS. The lead values obtained for JA-2, JA-3, JB-la, JF-l, JG-la, JG-2, JG-3, JP-1 of GSJ standard rocks were 19.8, 6.5, 7.5, 33.1, 47.5, 27.6, 33.2, 12.4 and 0.12 ppm, respectively. These values coincided very well with the reported values.
