SEPARATION OF SR-89 AND SR-90 FROM CALCIUM IN MILK WITH A MACROCYCLIC ETHER

被引：51

作者：

KIMURA, T

IWASHIMA, K

ISHIMORI, T

HAMADA, T

机构：

[1] INST PUBL HLTH,DEPT RADIOL HLTH,MINATO KU,TOKYO 108,JAPAN

[2] RIKKYO UNIV,INST ATOM ENERGY,YOKOSUKA,KANAGAWA 42001,JAPAN

[3] INST PHYS & CHEM RES,WAKO,SAITAMA 351,JAPAN

来源：

ANALYTICAL CHEMISTRY | 1979年 / 51卷 / 08期

关键词：

D O I：

10.1021/ac50044a005

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A small amount of strontium ion (20 mg) was simply separated from a large amount of calcium ion (0.5-13.6 g) by liquid-liquid extraction using dicyclohexyl 18-crown-6 chloroform solution. The extraction was applied to a part of the procedure for determining radiostrontium in ash of milk. The overall recovery of strontium was 75% on the average for 5-10 g of milk ash. Decontamination factors for Mg, Ca, Ru, I, Cs, Ba, and La in the final fraction were 1 × 105, 1 × 104, >1 × 106, >1 × 106, >2 × 106, 2 × 105, and 3 × 104, respectively. The chemical procedure for three samples took about 2 days. © 1979, American Chemical Society. All rights reserved.

引用

页码：1113 / 1116

页数：4

共 21 条

[1] SEPARATION OF CALCIUM AND STRONTIUM BY LIQUID ION EXCHANGE - DETERMINATION OF TOTAL RADIOSTRONTIUM IN MILK [J].