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radiochemical purity rcp
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     The radiochemical purity was over 95% .
     其标记率>95%,标记后无需纯化。
短句来源
     Determination of Radiochemical Purity of ~(18)F-fluorodeoxyglucose Injection
     ~(18)FDG注射液放化纯度的测定
短句来源
     STUDIES OF THE DETERMINING METHODS OF RADIOCHEMICAL PURITY OF RADIOPHARMACEUTICALS
     关于放射性药物放射化学纯度测定的探讨
短句来源
     Analysis of the Radiochemical Purity of ~(18)F-FDG by HPLC
     HPLC法分析~(18)F-FDG放化纯度
短句来源
     ~(99m)Tc-EHIDA radiochemical purity and stability
     ~(99m)Tc-依替菲宁(EHIDA)放射化学纯度及其稳定性的初步探讨
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  radiochemical purity rcp
A new minipaper chromatography (MPC) system involving two developing solvents has been developed to analyze the radiochemical purity (RCP) of the labeled preparation.
      
The radiochemical purity (RCP) of the product was over 90% as measured by thin layer chromatography (TLC).
      
The radiochemical purity (RCP) of the product was over 90% as measured by thin layer chromatography (TLC).
      
The radiochemical purity (RCP) of the complex was 96±2% as measured by thin layer chromatography (TLC).
      
The radiochemical purity (RCP) of the labelling was checked immediately and at 24 and 48?h.
      
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The 99mTc-d,l-HM-PAO is an ideal radiopharmaceutical for regional cerebral blood perfusion imaging. The improvement of synthesis and separation of diastereoiso-mers leads to obtain high purity (>99%)of d,1-HM-PAO and meso-HM-PAO. During separation H NMR spectroscopy was used to monitor the relative composition of these two diastereoisomers that can ensure the purity of pligand of d, 1-HM-PAO. The intravenous injection of 99m Tc-d. 1-HM-PAO was formed by adding fresh 99mTc washing liquor into a sterile,...

The 99mTc-d,l-HM-PAO is an ideal radiopharmaceutical for regional cerebral blood perfusion imaging. The improvement of synthesis and separation of diastereoiso-mers leads to obtain high purity (>99%)of d,1-HM-PAO and meso-HM-PAO. During separation H NMR spectroscopy was used to monitor the relative composition of these two diastereoisomers that can ensure the purity of pligand of d, 1-HM-PAO. The intravenous injection of 99m Tc-d. 1-HM-PAO was formed by adding fresh 99mTc washing liquor into a sterile, pyrogen-free and freeze-dried vial. The radiochemical purity (RCP)of 99mTc-d, 1-HM-PAO was greater than 80%. From the experiments of 99mTc-d, 1-HM-PAO in mice, after two minutes of intravenously (I. V. ) administration about 2. 24% of injected dose (I. D. ) appeared in the brain, and after 24 hours about 72% of radioactivity of injected dose still left in the brain. But for the 99m Tc-meso-HM-PAO. after two minutes of i. v. administration, about 1. 93% of I. D. appeared in the brain, and 24 hours later, 25% of radioactivity of I. D. was in the brain. This result shows that in the brain the radioactivity of 99m Tc-meso-HM-PAO declines faster than that of 99m Tc-d, 1-HM-PAO.

~(99m)Tc标记的外消旋六甲基丙二胺肟(~(99m)Tc-d,1-HM-PAO)是一种理想的局部脑血流量灌注显像剂。由于改进了合成和分离同分异构体的方法,得到了纯度大于99%的外消旋六甲基丙二胺肟(d,1-HM-PAO)和纯的内消旋六甲基丙二胺肟(meso-HM-PAO)。简化分离步骤时,利用~1H NMR技术监测分离过程中两种异构体的相对含量,可保证d,1-HM-PAO配体的纯度。将新鲜~(99m)Tc洗脱液加入无菌无热原冻干药盒试剂中,即形成~(99m)Tc-d,1-HM-PAO静脉注射液,~(99m)Tc-d,1-HM-PAO的放化纯度大于80%。小白鼠体内分布实验表明,~(99m)Tc-d,1-HM-PAO在脑中的摄取量为2.24%I.D.,在脑内滞留时间达到24h时,仍有摄取量的72%的放射性保留在脑内。而~(99m)Tc-meso-HM-PAO的脑摄取量为1.93%I.D.时,在脑内清除较快,至24h时,只有最初摄取量的25%残存在脑内。

The 99mTc-d, 1-HM-PAO is an ideal radiopharmaceutical for regional cerebral blood perfusion imaging. The improvement of synthesis and separation of diastereoisomers leads to obtain high purity (>99%) of d, 1-HM-PAO and meso-HM-PAO. During separation 1H NMR spectroscopy was used to monitor the relative composition of these two diastereoisomers that can ensure the purity of pligand of d, 1-HM-PAO. The intravenous injection of 99mTc-d. 1-HM-PAO was formed by adding fresh 99mTc washing liquor into a...

The 99mTc-d, 1-HM-PAO is an ideal radiopharmaceutical for regional cerebral blood perfusion imaging. The improvement of synthesis and separation of diastereoisomers leads to obtain high purity (>99%) of d, 1-HM-PAO and meso-HM-PAO. During separation 1H NMR spectroscopy was used to monitor the relative composition of these two diastereoisomers that can ensure the purity of pligand of d, 1-HM-PAO. The intravenous injection of 99mTc-d. 1-HM-PAO was formed by adding fresh 99mTc washing liquor into a sterile, pyrogen-free and freeze-dried vial. The radiochemical purity (RCP) of 99mTc-d, 1-HM-PAO was greater than 80%. From the experiments of "Tc-d, 1-HM-PAO in mice, after two minutes of intravenously (I. V. ) administration about 2- 24% of injected dose (I. D. ) appeared in the brain, and after 24 hours about 72% of radioactivity of injected dose still left in the brain. But for the 99mTc-meso-HM-PAO, after two minutes of I. V. administration, about 1.93% of I. D. appeared in the brain, and 24 hours later, 25% of radioactivity of I. D. was in the brain. This result shows that in the brain the radioactivity of "Tc-meso-HM-PAO declines faster than that of 99mTc-d,1-HM-PAO.

~(99m)Tc标记的外消旋六甲基丙二胺肟(~(99m)Tc-d,1-HM-PAO)是一种理想的局部脑血流量灌注显像剂。由于改进了合成和分离同分异构体的方法,得到了纯度大于99%的外消旋六甲基丙二胺肟(d,1-HM-PAO)和纯的内消旋六甲基丙二胺肟(meso-HM-PAO)。简化分离步骤时,利用~1H NMR技术监测分离过程中两种异构体的相对含量,可保证d,1-HM-PAO配体的纯度。将新鲜~(99m)Tc洗脱液加入无菌无热原冻干药盒试剂中,即形成~(99m)Tc-d,1-HM-PAO静脉注射液,~(99m)Tc-d,1-HM-PAO的放化纯度大于80%。小白鼠体内分布实验表明,~(99m)Tc-d,1-HM-PAO在脑中的摄取量为2.24%I.D.,在脑内滞留时间达到24h时,仍有摄取量的72%的放射性保留在脑内。而~(99m)Tc-meso-HM-PAO的脑摄取量为1.93%I.D.时,在脑内清除较快,至24h时,只有最初摄取量的25%残存在脑内。

The resting myocardicaL SPECT by different MIBI kits for 113 cases of normal and ischemic heartdisease is performed. The preparation of kits, reducting agents,and the time of imaging are checkedusing myocardium to liver(M/L)ratio as the parameter of myocardium uptake of MIBI.It showsthat MIBI uptake of myocardium has no relation with the reducing agents,the time of imaging between 60-120 min,while M/L ratio varied in every individual case. The ratio of M/L has also norelation to the radiochemical Purity(RCP)as...

The resting myocardicaL SPECT by different MIBI kits for 113 cases of normal and ischemic heartdisease is performed. The preparation of kits, reducting agents,and the time of imaging are checkedusing myocardium to liver(M/L)ratio as the parameter of myocardium uptake of MIBI.It showsthat MIBI uptake of myocardium has no relation with the reducing agents,the time of imaging between 60-120 min,while M/L ratio varied in every individual case. The ratio of M/L has also norelation to the radiochemical Purity(RCP)as long as RCP is more than 95%.

通过使用不同厂家 ̄(99)Tc ̄m-MIBI(下称MIBI)药盒对113例疑有心肌损伤病人进行SPECT断层。采用心/肝放射性比作为心肌对MIBI摄取的参数,对比分析了MIBI药盒的制备、还原剂、就检顺序与心/肝比的关系。结果表明:心/肝比与MIBI药盒还原剂类型无关,在60-120min内,与就检先后顺序无关,呈个体之间的差异。当MIBI的放射化学纯度>95%时,心/肝比与之不相关。

 
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