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《JOURNAL OF TIANJIN NORMAL UNIVERSITY (NATURAL SCIENCE EDITION)》 1995-04
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DETERMINATION OF THE CONTENT OF ROYAL ACID IN ROYAL JELLY BY FIRST-DERIVATIVE SPECTRO-PHOTOMETRY

Li Fengzhen(Cential Laboratory,Tianjin Normal University)  
This paper reports a method of first-derivative spectrophotometry to remove the substrate interference in royal jelly.It is a new method to determine directly the content of royal acid in royal jelly.It is a fast,sensitive,simple and accurate method without separation process.The linear range is 0~15 μg/mL,relative standard error is 2.1%.and rate of recovery is 96%~102%.
【CateGory Index】: O439
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