radiochemical purity

The specific activity is 740 TBq/ mol, and the radiochemical purity is over 95%.

产品放射性比活度为740TBq／mol，放射化学纯度＞95%。

The radiochemical purity of the product purified by HPLC is more than 98%, and its specific activity is 0.654 TBq/ g.

所得产物经HPLC纯化后放化纯度>98%，其比活度达0.654TBq/g。

Specific activity of the product is 15.54 GBq/ mmol, radiochemical purity 95.7%.

放射性比度为15.54GBq/mmol，放化纯度为95.7%。

The radiochemical purity of the product purified by HPLC is greater than 98%, and its specific activity is 738 GBq/ mmol. The quality of the product could meet the demands of the relevant research on medicine or pharmacology.

所得产物经高效液相色谱纯化后，放射化学纯度大于98%，放射性比活度达738GBq/mmol，各项指标能满足医、药学相关研究的要求。

Selection of methods for determining radiochemical purity of (~ ( 201) T1) thallous chloride

氯化亚铊（~（201）Tl）放射化学纯度测定方法的选择

Results The UV and HPLC spectrum of the synthesized 3 H higenamine were identical with that of the higenamine standard, the radiochemical purity was more than 98% and the specific activity was 370 GBq/ mmol.

结果合成的3H去甲乌药碱UV和HPLC图谱鉴定与去甲乌药碱标准品一致，放化纯>98%，比活度>370GBq mmol。

Method of determination of radiochemical purity of gallium-67 citrate injection

枸椽酸镓-67注射液放化纯的测定

NGA was labeled directly with Na 99 mTcO 4. The radiochemical purity of 99 mTc-NGA was over 90 %.

用直接法制备99mTc - NGA, 其放化纯大于90%,且室温下可稳定6h以上,符合显像要求.

Analysis of the radiochemical purity of coupled antibodies labeled with yttrium-90

~（90）Y标记偶联抗体放射化学纯度的分析

RESULTS The corrected radiochemical yield of 18F-FDG was about 72%, the whole synthesis time was 50 min, and the radiochemical purity was above 95% by HPLC and TLC respectively. All quality criteria of 18F-FDG met the requirements of the pharmacopoeia of USA.

结果经时间衰减校正后，18F FDG放射化学产率约为72%，总合成时间为50min，各项质量控制指标符合美国药典要求。

The radiochemical purity of radioiodinated 7 α-O-IA-DPN is more than 95%, and still greater than 90% kept for 24 h at room temperature. Radiochemical yields is 81%~ 90%, and specific radioactivity is 83.25 PBq/ mol.

研制结果为：碘标记的7αO IA DPN放化纯度大于95%，标记率为81%～90%，比活度高达83.25PBq/mol，室温下放置24h，放化纯度仍大于90%。