ISOTOPIC DETERMINATION OF CALCIUM-48 BY DEUTERON ACTIVATION

被引：4

作者：

DEWAAL, TJ

PEISACH, M

PRETORIU.R

机构：

[1] Southern Universities Nuclear Institute, Faure

[2] Formerly from the Department of Chemistry, University of Stellenbosch, South African Titan Products (Pty) Ltd., Umbogintwini

[3] Activation Analysis Research Laboratory, Texas A & M University, College Station

来源：

ANALYTICAL CHEMISTRY | 1969年 / 41卷 / 03期

关键词：

D O I：

10.1021/ac60272a001

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The biological use of the stable isotope calcium-48 for tracing required the determination of isotopic concentrations in calcium samples. The separated calcium was converted to fluoride and distilled in vacuum onto tantalum disks. After activation with 5-MeV deuterons the activities of 8.8-min 49Ca gave a measure of the calcium-48 content and the 4-hour activities of scandium-43 and -44 a measure of the natural calcium content. By using the 42Ca and 43Ca of natural calcium as internal standard, the isotopic concentration of 48Ca was determined without the need for measuring fluxes, yields, or sample weights. Milligram quantities of calcium fluoride were analyzed with a relative standard deviation of ±2.0%. © 1969, American Chemical Society. All rights reserved.

引用

页码：416 / &

共 10 条

[1]

BETHARD WF, 1967, NUCLEAR ACTIVATION T, P533

[2]

JUNOD E, 1963, 3 P INT COLL BIOL SA

[3] ISOTOPIC DETERMINATION OF CALCIUM-43 AND CALCIUM-48 BY NEUTRON TIME-OF-FLIGHT SPECTROMETRY [J].

MCMURRAY, WR ;

PEISACH, M ;

PRETORIUS, R ;

VANDERME.P ;

VANHEERD.IJ .

ANALYTICAL CHEMISTRY, 1968, 40 (02) :266-+

[4] EVALUATION OF RADIOACTIVE DECAY DATA [J].

MONK, RG ;

DOWNHAM, T ;

MERCER, A .

ANALYTICAL CHEMISTRY, 1963, 35 (02) :178-&

[5]

PEISACH M, 1967, LEECH, V37, P11

[6]

PEISACH M, 1966, ANALYT CHEM, V38, P965

[7] RADIOACTIVE DECAY OF SC-49 [J].

REZANKA, I ;

FRANA, J ;

VOBECKY, M ;

MASTALKA, A .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1961, 18 :13-18

[8] DETERMINATION OF MICRO AMOUNTS OF CALCIUM IN POTASSIUM CHLORIDE BY NEUTRON ACTIVATION ANALYSIS [J].

STRELOW, FWE ;

STARK, H .

ANALYTICAL CHEMISTRY, 1963, 35 (09) :1154-&

[9]

1963, CATALOG RADIO STABLE, P62

[10]

1960, HEALTH PHYS, V3, P161

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