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Guang Pu Xue Yu Guang Pu Fen Xi. 1997 Apr;17(2):119-22.

[Determination of caffeine and sodium benzoate contents in caffeine and sodium benzoate injection by P-matrix method].

[Article in Chinese]

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  • 1Department of Analytical Chemistry, Hebei Medical University, 050017 Shijiazhunag.

Abstract

The contents of caffeine and sodium benzoate injection may be determined by P-matrix method without separation of its components. BSAIC language is used for programming. The average recovery of caffeine is 100.0% and that of sodium benzoate is 99.95%. The variation coefficient of caffeine is 0.40% and that of sodium benzoate is 0.65%. On the basis of recovery rate and data observed it is concluded that this method is accurate, reliable, simple and rapid as compared with the standard pharmacopoeia regulations.

PMID:
15810401
[PubMed - indexed for MEDLINE]
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