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华西医科大学附属第一医院,成都,610041
纸质出版日期:2000-04-01
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[1]曹国祥,谭天秩,梁正路.放射性碘化IBZM的快速制备及鉴定[J].核技术,2000(04):247-252.
A simplified method for preparation and identification of radio-iodinated IBZM[J]. Nuclear techniques, 2000, (4): 247-252.
采用自行设计的低浓度过氧化氢乙酸法碘化标记(s)-BZM, Sep-Pak C18小柱分离纯化反应产物,无菌无热原滤器除菌。结果表明低浓度过氧化氢乙酸法是最佳的碘化标记(s)-BZM的方法,其碘化标记率≥90%,无副产物,易于进行无菌无热原处理。纯化产物的放射化学纯度为96.8%±1.4%(n=5),全程产率为81.9%±2.8%(n=5)。由此可见采用低浓度过氧化氢乙酸法,配合Sep—Pak C
18
小柱分离纯化和无菌无热原滤器除菌,能简便、快速、高产率地制备无菌无热原的放射性碘化IBZM,是极具实用的临床方法。
(s)-BZM { (s)- (-)-2-hydroxy-3-6-methoxy-N- [(1-ethyl-2-pyrrodinyl) methyl] benzamide} was labelled with radio-iodine by low concentration hydrogen peroxide plus acetic acid (LCHPPAA) as oxidant
The radio-iodinated IBZM was separated by Sep-Pak C
18
cartridge. The results showed that the LCHPPAA was a superior oxidant for preparation of radio-iodinated IBZM. This process had no by-products and its labelling yield was ≥90%. The radiochemical purity of purified products was 96.8% ±1.4% (n= 5). The overall yield of the radio-iodinated IBZM prepared by this method was 81.9%±2.8% (n=5). Therefore
the LCHPPAA labelling technique and the Sep-Pak C
18
cartridge purification method was very useful for the preparation of radio-iodinated IBZM in clinical application.
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