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[Content analysis of bilirubin in niuhuang compound suppository by HPLC]
Jing Chen1, Guoping Gan, Zai'an He
1Hubei College of Traditional Chinese Medicine, Wuhan 430061.
Objective:
To establish a method of determinating content of bilirubin in Niuhuang Compound Suppository by HPLC.
Method:
C18 column was used. The mobile phase was consisted of dimethylsulfoxide: acetonitrile: 0.5% acetic ammonium (1:1.4:1). Detector wavelength was 456 nm. The extraction solution for bilirubin was consisted of dlimethylsulfoxide: acetonitrile = 9:4.
Results:
The linearity was obtained over the range of 0.107 - 2.14 microg. The mean recovery was 101.0%, RSD = 0.518% (n = 5).
Conclusion:
The method was sensitive, simple and accurate.
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