There are some problems when using iodometry to measure vitamin c, such as inappropriateness of density, inability of repetition, large error and so on.

用常规的碘量法测定维生素c时存在重复性差、误差较大、浓度过高等问题。

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OBJECTIVE To establish a measure to determine the content of vitamin B2 in the oral liquid of vitamin B complex containing calcium pantothenate.

目的建立复合维生素B泛酸钙口服溶液中维生素B2的含量测定。

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In the U.S. vitamin D levels are usually reported with a different measure using nanograms per milliliter.

WSJ: Swedish Study Links Multiple Sclerosis to Vitamin D Levels