PHENOLPHTHALEIN diphosphate was introduced by King 1 as a substrate for phosphatases. Huggins and Talalay 2 applied it to quantitative determinations of enzyme activities. They showed that the amount ...
A staff member of a pharmaceutical company assesses the quality of a medical product in Nanjing, east China's Jiangsu Province, June 24, 2019. (Xinhua/Ji Chunpeng) China's National Medical Products ...
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