1) Third order derivative spectrography
三阶导数分光光度法
2) first derivative spectrophotometry
一阶导数分光光度法
1.
Determination of fleroxacin in its preparations by the first derivative spectrophotometry;
一阶导数分光光度法测定几种制剂中氟罗沙星
2.
Two methods for the rapid determination of 10-HDA in royal jelly with the def-frential spectrophotometry and the first derivative spectrophotometry are presented.
本文提出了用差示分光光度法和一阶导数分光光度法测定蜂王浆中蜂王酸的含量。
3) first order derivative spectrophotometry
一阶导数分光光度法
1.
OBJECTIVE:To improve the methods to determine the contents of ribavirin in ribavirin eye drop METHODS:First order derivative spectrophotometry was used to determined by UV at 222 nm and Δλ 2 nm RESULTS:The average recovery for this method was 99 9%( n=5 ),and the RSD was 0 846% CONCLUSION:The method was simple and accurate,it can be used to determine the contents of ribabirin in eye drop
方法 :采用一阶导数分光光度法直接测定利巴韦林含量 ,测定波长为 2 2 2nm ,Δλ =2nm。
4) Second derivative spectrometry
二阶导数分光光度法
5) the first order derivative spectrophotometry
一阶导数分光光度法
1.
Quantitative determination of VitB_2 in the compound yolk emulsion by the first order derivative spectrophotometry;
一阶导数分光光度法测定复方蛋黄乳膏中VitB_2的含量
2.
Method: In the case of ambient temperature (25℃) and body temperature (37℃) the change of content was within 8h after the compatibility investigated of Cephathiamidine and Peritoneal Dialysis Solution by the First Order Derivative Spectrophotometry,and the aspect was observed, Ph was determined too.
方法:将头孢硫脒加入腹膜透析液中,混合均匀后,在25℃和37℃下于0h、1h、2h、4h、6h、8h时采用一阶导数分光光度法,测定头孢硫脒的含量,同时记录外观变化及PH值。
6) Triple ratio spectra derivative spectrophotometry
三重-比导数分光光度法
补充资料：三波长分光光度法
分子式：
CAS号：
性质：在紫外-可见分光光度法中，对多组分的混合物进行定量的一种方法。本法中选定的三个波长在干扰物质的吸收光谱上应为一条直线。在三波长处分别测定混合物的吸光度A1、A2、A3，根据相似三角形的等比特性，可得下式：Eλ1、Eλ2、Eλ3分别为待测组分在三个波长处的吸光系数，L为光程，Cx为待测组分浓度。m=λ2-λ3，n=λ1-λ2，可见△A只与待测组分浓度有关。本法可有效消除干扰组分对待测组分测定的干扰，尤其适用于浑浊样品分析。但三波长选择及结果计算较为费时。目前已有些紫外仪器装备了专用程序，自动完成三波长法的运算。
CAS号：
性质：在紫外-可见分光光度法中，对多组分的混合物进行定量的一种方法。本法中选定的三个波长在干扰物质的吸收光谱上应为一条直线。在三波长处分别测定混合物的吸光度A1、A2、A3，根据相似三角形的等比特性，可得下式：Eλ1、Eλ2、Eλ3分别为待测组分在三个波长处的吸光系数，L为光程，Cx为待测组分浓度。m=λ2-λ3，n=λ1-λ2，可见△A只与待测组分浓度有关。本法可有效消除干扰组分对待测组分测定的干扰，尤其适用于浑浊样品分析。但三波长选择及结果计算较为费时。目前已有些紫外仪器装备了专用程序，自动完成三波长法的运算。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条