HPLC 法测定覆盆子中 VE 含量的研究

建立了 HPLC 测定覆盆子浆果中 VE 含量方法,确定测定波长为295 nm,最大标准偏差5.53%,峰面积与 VE 标准品线性关系良好,标准方程 Y =6587.35 x,相关系数0.9992,加标回收率在96.55%~98.43%之间,此方法用于测定覆盆子浆果 VE 含量准确、可行,经测定覆盆子浆果中 VE 含量为0.0935 mg/g.     

基于机器视觉的地铁分流系统

利用机器视觉和人脸识别的地铁分流预警系统,有针对性的将乘客疏导和分流,有效地解决拥堵问题合理利用人力资源,符合智慧城市、智能生活的趋势。     

山莓色素的提取及其性质的研究

本文报导了从山莓果实中提取色素的方法。对该色素的膏剂进行了总酸度、总还原糖、维生素C含量的测定,并探讨了酸、碱、热、光对该色素的影响。     

HPLC法测定覆盆子中V_E含量的研究

建立了HPLC测定覆盆子浆果中VE含量方法,确定测定波长为295 nm,最大标准偏差5.53%,峰面积与VE标准品线性关系良好,标准方程Y=6 587.35 x,相关系数0.999 2,加标回收率在96.55%~98.43%之间,此方法用于测定覆盆子浆果VE含量准确、可行,经测定覆盆子浆果中VE含量为0.093 5 mg/g.     

Bringing a Small Academic Library Back from the Brink

Abstract

When Villa Madonna College moved from Covington to Crestview Hills, Kentucky in 1968 to become Thomas More College, the designers of the new campus knew that the library would be a vital component of academic success for future students. As Thomas More transitioned from “College” to “University” in 2018, the library had unfortunately endured a long slow decline. With a recent renaming to the “Benedictine Library” in 2017, administration knew that more substantial changes were needed. In April 2018, the library started a new course with the 16^th Library Director in institutional history. This column illustrates the ambitious first two years of the new library administration, and details the work completed in the library’s “digital modernization plan”.