分光光度法测定药物制剂和果汁中的抗坏血酸。
Spectrophotometric determination of ascorbic acid in pharmaceutical preparations and fruit juices.
作者信息
Muralikrishna U, Murty J A
出版信息
Analyst. 1989 Mar;114(3):407-8. doi: 10.1039/an9891400407.
PMID:2719286
Abstract
Conditions were established for the determination of ascorbic acid using phsophovanadotungstic acid as reagent. The method was applied to the determination of ascorbic acid in pure form, pharmaceutical preparations and fruit juices. The method is sensitive (2-24 micrograms ml-1 of ascorbic acid) and rapid and tolerates the presence of common ingredients usually found in fruit juices. The results obtained with the proposed method showed good agreement with those given by the standard method.
摘要
建立了以磷钒钨酸为试剂测定抗坏血酸的条件。该方法应用于纯抗坏血酸、药物制剂和果汁中抗坏血酸的测定。该方法灵敏（抗坏血酸浓度范围为2 - 24微克/毫升）、快速，且能耐受果汁中常见成分的存在。用该方法得到的结果与标准方法给出的结果吻合良好。
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