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| Standardisation. Dissolve 0.120 g of zinc RV in 4 ml of hydrochloric acid R1 and add 0.1 ml of bromine water R. Drive off the excess of bromine by boiling, add dilute sodium hydroxide solution R until the solution is weakly acid or neutral and carry out the assay of zinc by complexometry (2.5.11).Õâ¾ä»°ÖеÄzinc RV ÊÇʲô¶«Î÷£¿£¿ |
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telomerase(½ð±Ò+3,VIP+0):thanks 2-18 09:25
telomerase(½ð±Ò+3,VIP+0):thanks 2-18 09:25
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2Â¥2009-01-16 12:27:41
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3Â¥2009-01-16 13:43:52














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