THE DEVELOPMENT OF AN ALPHA-BETA SEPARATION LIQUID SCINTILLATION COCKTAIL FOR AQUEOUS SAMPLES

被引：11

作者：

PATES, JM ^{[1
]}

COOK, GT ^{[1
]}

MACKENZIE, AB ^{[1
]}

THOMSON, J ^{[1
]}

机构：

[1] PACKARD INSTRUMENT CO BV,9731 BK GRONINGEN,NETHERLANDS

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY-ARTICLES | 1993年 / 172卷 / 02期

关键词：

D O I：

10.1007/BF02041854

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Scintillation cocktail components were studied with regard to their impact on pulse decay discimination (PDD) and hence the separation of alpha from beta activity. using a Packard 2250 CA alpha/beta. Di-isopropyl naphthalene (DIN) was found to be the most suitable solvent, both from safety considerations and also the fact that it acts in a very similar manner to naphthalene in stretching the pulses produced at the photomultiplier tube anode and hence enhancing the separation. Increasing the surfactant concentration and the use of dimethylanthracene (DMA) as secondary fluor degraded the cocktail's performance. PMT anode pulse shapes were found to be a useful indicator of PDD efficiency but could not give a quantitative guide.

引用

页码：341 / 348

页数：8

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