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尿素[14C]呼气试验药盒
尿素[14C] 呼气试验药盒 同位素 诊断
2008/10/20
该项目开发了尿素[14C]呼气试验药盒。该产品是一种新的同位素诊断技术。其原理是口服[14C]放射性同位素标记的尿素后，如果存在幽门螺杆菌（Hp）感染，则会分泌尿激酶而使尿素[14C]在该酶的作用下分解成碳[14C]二氧化碳及氨气。用合适的方法收集呼出的二氧化碳并用适当的仪器检测碳[14C]二氧化碳放出的β射线便可判断Hp感染。
15-14C标记青蒿素的合成
标记青蒿素 生物合成 黄花蒿叶
2010/3/1
15-14C]Artemisinin(8) was prepared by the biosynthesis of[15-14C]dihydroartemisic acid(14) which was synthesized from diketone in 6 steps. A supernatant liquidprepared from the tender leaves of ripe S...
〔14C〕氨三肼(AT-1902)在小鼠体内的动态观察
[14C]氨三肼 放射自显影术
2010/3/9
Distribution of [14C] AT-1902 in mice was studied by means of whole body autoradiography. After [~(14)C] AT-1902 was injected im to mice, radioactivity was rapidly taken up by various organs.The highe...