DETERMINATION OF LEAD IN WINE, OTHER BEVERAGES AND FRUIT SLURRIES BY FLOW-INJECTION HYDRIDE GENERATION ATOMIC-ABSORPTION SPECTROMETRY WITH ONLINE MICROWAVE DIGESTION

被引：41

作者：

CABRERA, C

MADRID, Y

CAMARA, C

机构：

[1] UNIV COMPLUTENSE MADRID,FAC QUIM,DEPT QUIM ANALIT,E-28040 MADRID,SPAIN

[2] UNIV GRANADA,FAC FARM,DEPT NUTR & BROMATOL,E-18071 GRANADA,SPAIN

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1994年 / 9卷 / 12期

关键词：

LEAD; ATOMIC ABSORPTION SPECTROMETRY; HYDRIDE GENERATION; FLOW INJECTION; WINE; BEVERAGES; FRUIT;

D O I：

10.1039/ja9940901423

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A simple and rapid flow injection-lead hydride generation atomic absorption spectrometry (Fl-HG-AAS) method was optimized for the determination of lead in wine, other beverages and fruit. Lead hydride was generated in HNO3-H2O2 medium using NaBH4 as reducing agent. To determine lead in beer, juice and fruit, a microwave oven was coupled on-line to the Fl-HG-AAS system. For fruit, the lead hydride was generated from slurries of the fresh sample. No matrix effect was found in the determination of lead. The method enabled the direct determination of lead in untreated samples with use of an aqueous calibration graph. The detection limit was 10 mu g l(-1) in wine and other beverage samples, and 1.0 ng in fruit.

引用

页码：1423 / 1426

页数：4

共 13 条

[1] COMBINATION OF HYDRIDE GENERATION AND GRAPHITE-FURNACE ATOMIC-ABSORPTION SPECTROMETRY FOR THE DETERMINATION OF LEAD IN BIOLOGICAL SAMPLES [J].