DETERMINATION OF COLLOIDAL IRON IN WATER BY LASER-INDUCED BREAKDOWN SPECTROSCOPY

被引：92

作者：

ITO, Y

UEKI, O

NAKAMURA, S

机构：

[1] Department of Mechanical Engineering, Nagaoka University of Technology, Nagaoka, Niigata, 940-21, 1603-1, Kamitomioka

来源：

ANALYTICA CHIMICA ACTA | 1995年 / 299卷 / 03期

关键词：

LASER-INDUCED BREAKDOWN SPECTROSCOPY; COLLOIDAL IRON; IRON;

D O I：

10.1016/0003-2670(94)00313-B

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Laser-induced breakdown spectroscopy was applied to the determination of FeO(OH) in water and successfully determined the concentration of the turbid solution down to a few ppm (mu g ml(-1)). A Q-switched Nd:YAG laser, which delivered 8 ns pulses, was used as an excitation source. Cell-less measurement was achieved using a coaxial nozzle flow system which allowed to study the effect of ambient gas on emission intensity and decay lifetime of the breakdown plasma. Using helium gas and with a proper timing gate, the FeO(OH) concentration in water was determined in the ppm range.

引用

页码：401 / 405

页数：5

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