SOME OBSERVATIONS ON THE DETERMINATION OF TOTAL HEAVY-METALS IN SEWAGE-SLUDGE BY ATOMIC-ABSORPTION SPECTROPHOTOMETRY AFTER A PRESSURIZED ACID DIGESTION

被引：6

作者：

GIMENOHERNANDEZ, MC

POMARES, F

DELAGUARDIA, M

机构：

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

[2] INST VALENCIANO INVEST AGR, DEPT ECOL, VALENCIA, SPAIN

来源：

MICROCHEMICAL JOURNAL | 1990年 / 42卷 / 03期

关键词：

D O I：

10.1016/0026-265X(90)90055-A

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

An economical and simple method for the flame atomic absorption spectrometric determination of Cd, Pb, Ni, Cu, Fe, and Zn in sewage sludges is described. Samples are treated with concentrated HNO3 in a thermal oven using Pyrex glass tubes hermetically sealed with Bakelite screw caps. The effect of the digestion parameters, such as digestion time, acid volume, sample mass, and temperature, were studied. The precision and accuracy of this procedure were evaluated by the analysis of two BCR (Community Bureau of Reference, European Communities) certified sewage sludge samples (CRM 146 and 144). © 1990.

引用

页码：274 / 282

页数：9

共 12 条

[1] COMPARISON OF FOUR METHODS FOR DIGESTION OF SEWAGE-SLUDGE SAMPLES FOR ANALYSIS OF METALS BY ATOMIC-ABSORPTION SPECTROPHOTOMETRY [J].