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Study on the Stability of Baicalin Magnesium Salt / 中国药房
China Pharmacy ; (12): 3076-3079, 2017.
Article in Chinese | WPRIM | ID: wpr-618172
ABSTRACT

OBJECTIVE:

To study the stability of baicalin magnesium salt.

METHODS:

The stability of baicalin magnesium salt at high temperature(60 ℃),high humidity(90%),strong illumination(4000 lx),different temperatures(20,37,50,60 ℃) and pHs(6.80,5.70,4.60,4.30,3.90,3.60,3.20) was investigated,and HPLC was used to detect the drug contents.

RESULTS:

High humidity test indicated that the quality of baicalin magnesium salt was increased by (6.17 ± 0.12)% in the 5th day and in-creased by(6.92±0.05)% in the 10th day. Drug contents in the 10th day were respectively(94.78±0.12)%,(94.79±0.20)%, (94.66±0.15)% in the high temperature,high humidity,strong illumination tests(n=3). In phosphate buffer solution(pH 6.80), baicalin magnesium salt was stable only when the temperature was below 20 ℃;and it was yet stable in pure water(pH 6.76)at 37 ℃. pH stability test showed that the most stable pH was 4.30.

CONCLUSIONS:

Baicalin magnesium salt has hygroscopicity to some extent. Strong illumination affects the stability more seriously than high temperature and high humidity. The stability of ba-icalin magnesium salt in pure water is superior to in phosphate buffer solution,and the salt is stable in weak acid solution.

Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2017 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Language: Chinese Journal: China Pharmacy Year: 2017 Type: Article