安徽农业科学2012，Vol.40Issue(25)：12703-12706,4.
浙江省中小河流流量监测方案探讨
Flow Rate Monitoring Program of Small and Medium Rivers in Zhejiang Province
黄健 1周琮辉 2车新垒1
作者信息
- 1. 浙江省水文局,浙江杭州310009
- 2. 杭州市水文水资源监测总站,浙江杭州310016
- 折叠
摘要
Abstract
[Objective]To study the best extraction conditions of proanthocyanidin from grape seeds by petroleum ether.[Method]The absor-bance of proanthocyanidin was determined with the method of vanillina, a standard curve was drawn, and the factors influencing the extraction of proanthocyanidin were optimized with orthogonal experiment.[Result]The best extraction conditions were 60% petroleum ether as extract-ant, 1=5 (g/ml) solid-liquid ratio, Soxhlet extractor to reflux at 60 t forl.Sh, the extraction rate of proanthocyanidin under the best condi tions was 60.03 mg/g.[Conclusion]Petroleum ether is good in extracting proanthocyanidin from grape seeds.关键词
中小河流/流量监测/方案探讨Key words
Small and medium rivers/Flow rate monitoring/Programs/Application分类
农业科技引用本文复制引用
黄健,周琮辉,车新垒..浙江省中小河流流量监测方案探讨[J].安徽农业科学,2012,40(25):12703-12706,4.
