FLAME ATOMIC-ABSORPTION ANALYSIS OF GOLD IN JEWELRY SAMPLES

被引：10

作者：

MAURI, AR

HUERTA, E

DELAGUARDIA, M

机构：

[1] UNIV VALENCIA,DEPT QUIM ANAL,C DR MOLINER 50,E-46100 BURJASSOT,SPAIN

[2] ASOCIAC INVEST METAL MECAN AFINES & CONEXAS,BARCELONA 38,SPAIN

[3] POLIGONO IND FUENTE JARRO,E-46980 PATERNA,SPAIN

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1990年 / 338卷 / 06期

关键词：

D O I：

10.1007/BF00323408

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A new procedure is proposed for the determination of gold by flame atomic absorption in jewelry samples. The method is based on the acid digestion of 10 mg of sample in a microwave oven and on the on-line dilution, using a three-way valve. The dynamic range of the technique is extended to 100 mg/l gold solutions and using a weighted bracketing method for the treatment of the results, accuracy errors lower than 2% can be found in the analysis of real samples as compared with those obtained by fire assay. The method is very fast and implies only little damage to the jewelry samples. © 1990 Springer-Verlag.

引用

页码：699 / 702

页数：4

共 12 条

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[2]

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[3]

Fuller C. W., 1976, Atomic Absorption Newsletter, V15, P73

[4]

HEE SSQ, 1985, ANAL CHEM, V57, P1242, DOI 10.1021/ac00284a018