ONLINE ANION-EXCHANGE PURIFICATION OF [N-13] NH3 PRODUCED BY 10 MEV PROTON IRRADIATION OF DILUTE AQUEOUS-ETHANOL

被引：6

作者：

BORMANS, G ^{[1
]}

LANGENDRIES, W ^{[1
]}

MORTELMANS, L ^{[1
]}

VERBRUGGEN, A ^{[1
]}

机构：

[1] UNIV HOSP GASTHUISBERG,B-3000 LOUVAIN,BELGIUM

来源：

APPLIED RADIATION AND ISOTOPES | 1995年 / 46卷 / 02期

关键词：

D O I：

10.1016/0969-8043(94)00105-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

[13N]NH3 prepared by irradiating dilute aqueous ethanol with 10 MeV protons is contaminated with small amounts of [18F]fluoride and [13N]NO2 -/NO3 -. The content of 18F is negligible at end of bombardment but increases as a function of time due to the longer half-life of 18F. We developed a simple on-line purification method in which the irradiated water directly passes through a small anion exchange column. Both the radionuclidic impurity [18F]fluoride and the radiochemical impurities [13N]NO3 -/NO2 - are efficiently removed by this procedure which results in highly pure (>99.9%) [13N]NH3 preparations. © 1995.

引用

页码：83 / 86

页数：4