Simultaneous measurement of 89Sr and 90Sr in aqueous samples by liquid scintillation counting using the spectrum unfolding method

被引：19

作者：

Hong, KH ^{[1
]}

Cho, YH ^{[1
]}

Lee, MH ^{[1
]}

Choi, GS ^{[1
]}

Lee, CW ^{[1
]}

机构：

[1] Korea Atom Energy Res Inst, Nucl Environm Res Div, Taejon 305600, South Korea

来源：

APPLIED RADIATION AND ISOTOPES | 2001年 / 54卷 / 02期

关键词：

liquid scintillation counting; full spectrum DPM; Sr-89; Sr-90;

D O I：

10.1016/S0969-8043(00)00287-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two radiostrontium isotopes, Sr-89 and Sr-90, were measured simultaneously by liquid scintillation counter coupling with a full spectrum DPM counting protocol. Strontium was separated from the aqueous media by extraction chromatography using Sr-spec resin. Individual count rates were evaluated from quench correlation curves for Sr-89 and Sr-90 related with SIS and tSIE quench indicators. The method exhibited a counting efficiency of 95% for Sr-89 and 92% for Sr-90 within their full energy channels and gave highly precise results when the sample was counted within 4 h after strontium separation. Lower limits of detection were 37 mBq/l for Sr-90 and 32 mBq/l for Sr-89 with a 60 min counting time. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：299 / 305

页数：7

共 12 条

[1]

*AM NAT STAND I IN, 1989, N1330 AM NAT STAND I

[2] NEW METHOD FOR DETERMINATION OF SR-89, SR-90 AND Y-90 IN AQUEOUS-SOLUTION WITH AID OF LIQUID SCINTILLATION-COUNTING [J].

BUCHTELA, K ;

TSCHURLOVITS, M .

INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES, 1975, 26 (6-7) :333-338

[3] AN IMPROVED METHOD FOR DETERMINING SR-89 AND SR-90 IN URINE [J].

DIETZ, ML ;

HORWITZ, EP ;

NELSON, DM ;

WAHLGREN, M .

HEALTH PHYSICS, 1991, 61 (06) :871-877

[4]

*ENV MEAS LAB, 1990, HASL 300 PROC MAN, V27

[5]

Hong K. H., 1996, J KOREAN ASS RAD PRO, V21, P9

[6] SEPARATION AND PRECONCENTRATION OF STRONTIUM FROM BIOLOGICAL, ENVIRONMENTAL, AND NUCLEAR WASTE SAMPLES BY EXTRACTION CHROMATOGRAPHY USING A CROWN-ETHER [J].

HORWITZ, EP ;

DIETZ, ML ;

FISHER, DE .

ANALYTICAL CHEMISTRY, 1991, 63 (05) :522-525

[7] A NOVEL STRONTIUM-SELECTIVE EXTRACTION CHROMATOGRAPHIC RESIN [J].

HORWITZ, EP ;

CHIARIZIA, R ;

DIETZ, ML .

SOLVENT EXTRACTION AND ION EXCHANGE, 1992, 10 (02) :313-336

[8]

*PACK INSTR CO, 1989, LIQ SCINT AN SCI TEC

[9]

PILTINGSRUD HV, 1972, HEALTH PHYS, V23, P121

[10]

Prichard H.M., 1991, RADIOACT RADIOCHEM, V3, p28e36

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