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本文用两种方法对沙棘果汁Vc含量进行了对比测定。结果表明,改良的碘量法无论对标准溶液或沙棘汁,都达到了同常规的2,6—二氯靛酚法同样的准确度和精密度,且碘量法尚有简便、快速的优点,更适合于对高Vc和色素较重的沙棘样品进行快速准确的测定。
In this paper, two methods were used to determine the Vc content of sea buckthorn juice. The results showed that the modified iodometric method has the same accuracy and precision as the conventional 2,6-dichloroindophenol method, no matter the standard solution or the sea buckthorn juice, and the iodometric method has the advantages of simplicity and rapidity , More suitable for high-Vc and heavy pigment seabuckthorn samples for rapid and accurate determination.