A Method for Assay of Vitamin K_1

Journal of China Pharmaceutical University > 1982 > (1): 37-41.

Zhou Xunzhang, Lin Lixing, Yu Rugu. A Method for Assay of Vitamin K_1[J]. Journal of China Pharmaceutical University, 1982, (1): 37-41.

Citation:

Zhou Xunzhang, Lin Lixing, Yu Rugu. A Method for Assay of Vitamin K_1[J]. Journal of China Pharmaceutical University, 1982, (1): 37-41.

Citation:

Zhou Xunzhang, Lin Lixing, Yu Rugu. A Method for Assay of Vitamin K_1[J]. Journal of China Pharmaceutical University, 1982, (1): 37-41.

Abstract

Since the intermediates in the manufacturing of Vitamine K_1 exhibit UV absorption,they interfere with its assay by UV spectrophotometric methods. These intermediates can be removed by column chromatography with A1_2 O_3 ocitaiuing 7% H_2O. The UV absorption curve of these intermediates was determined. The effects of differentwater content of A1_2 O_3 on K_1 and its intermediates were investigated, and the behavior of absorption among these intermediates on A1_2 O_3 containing 7 % H_2 O was also discussed.

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