摘要
以5%香草醛-冰乙酸和高氯酸为显色剂,测定白千层枝和叶中三萜酸的总含量。熊果酸对照品在0.20~1.60 mg/L范围内呈良好线性关系,其回归方程为A=0.1548C+0.0286,r=0.999 3。结果表明白千层枝中三萜酸的总质量分数约为1.096%,叶中三萜酸的总质量分数约为1.017%。
The total content of triterpenoidic acid in the stems and leaves of Melaleuca leucadendra Linn.was determined using 5 % vanillin-acetic acid and perchloric acid as color system.Ursolic acid had a better linear relationship in the range of 0.20-1.60 mg/L and its regression equation was A=0.154 8C+0.028 6(r=0.999 3).The results showed that the total mass fractions of triterpenoidic acid in the stems and leaves of M.leucadendra were 1.096 % and 1.017 % respectively.
出处
《林产化学与工业》
EI
CAS
CSCD
北大核心
2011年第4期75-78,共4页
Chemistry and Industry of Forest Products
基金
海南省自然科学基金项目(20804)
关键词
白千层
三萜酸
紫外分光光度法
Melaleuca leucadendra Linn.
tritepenoidic acid
ultra-violet spectrophotometric method