APPLICATION OF A HIGH-RESOLUTION INDUCTIVELY COUPLED PLASMA MASS-SPECTROMETER TO THE MEASUREMENT OF LONG-LIVED RADIONUCLIDES

被引：81

作者：

KIM, CK

SEKI, R

MORITA, S

YAMASAKI, S

TSUMURA, A

TAKAKU, Y

IGARASHI, Y

YAMAMOTO, M

机构：

[1] NATL INST RADIOL SCI,DIV RADIOECOL,3609 ISOZAKI,IBARAKI 31112,JAPAN

[2] UNIV TSUKUBA,DEPT CHEM,SAKURA,IBARAKI 305,JAPAN

[3] NATL INST AGROENVIRONM SCI,DIV WATER QUAL SCI,IBARAKI 305,JAPAN

[4] MARUBUN,CHUO KU,TOKYO 170,JAPAN

[5] KANAZAWA UNIV,LOW LEVEL RADIOACT LAB,TATSUNOKUCHI,ISHIKAWA 92312,JAPAN

来源：

JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY | 1991年 / 6卷 / 03期

关键词：

HIGH RESOLUTION INDUCTIVELY COUPLED PLASMA MASS SPECTROMETRY; LONG-LIVED RADIONUCLIDE; DETECTION LIMIT;

D O I：

10.1039/ja9910600205

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Some long-lived radionuclides, such as Tc-99, Ra-226, Th-232, Np-237, U-238, Pu-239 and Pu-240 were measured using high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS). By using HR-ICP-MS with an ultrasonic nebulizer, the detection limits of these nuclides were 0.002-0.02 pg ml-1 and the sensitivities were 10 times better than those obtained using HR-ICP-MS without the ultrasonic nebulizer. More accurate isotopic data were also obtained using HR-ICP-MS than with quadrupole ICP-MS at lower concentrations of the analyte because of the improvement in counting statistics that can be obtained with HR-ICP-MS due to the greater efficiency of ion transmission. A comparison of the measurement of the Pu-240 to Pu-239 ratio is shown.

引用

页码：205 / 209

页数：5

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