DETECTION OF SUB-NG/L ACTINIDES IN INDUSTRIAL WASTE-WATER MATRICES BY INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETRY

被引：14

作者：

CRAIN, JS ^{[1
]}

MIKESELL, BL ^{[1
]}

机构：

[1] LOS ALAMOS NATL LAB,DIV CHEM & LASER SCI,ANALYT CHEM GRP,LOS ALAMOS,NM 87545

来源：

APPLIED SPECTROSCOPY | 1992年 / 46卷 / 10期

关键词：

INDUCTIVELY COUPLED PLASMA-MASS SPECTROMETRY; TRACE ACTINIDE MEASUREMENTS; WASTE-WATER ANALYSIS;

D O I：

10.1366/000370292789619278

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Inductively coupled plasma-mass spectrometry (ICP-MS) was used to measure ng/L quantities of uranium in solution. Pneumatic nebulization and ultrasonic nebulization were compared. The spectral integration period was varied to study the effects of counting statistics. Analyte detection at m/z 238 was found to be blank limited. Under optimal conditions (i.e., with the use of ultrasonic nebulization and an 11-s integration period per m/z), uranium detection limits (3sigma) at m/z 234 (not blank limited) were found to be 0.1 ng/L in 18-MOMEGA water. The uranium detection limit at m/z 234 was 0.5 ng/L when a 2.5-g/L NaNO3 solution was nebulized. Normalized instrument response for uranium in 18-MOMEGA water agreed well with that in 2.5-g/L NaNO3.

引用

页码：1498 / 1502

页数：5

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