1) Second derivative FTIR spectroscopy
二阶导数FTIR法
2) Second-Derivative Spectrophotometry
二阶导数光度法
1.
Determination of Microamount of Copper in Soya Bean Milk Powder by Second-Derivative Spectrophotometry;
二阶导数光度法测定豆奶粉中微量铜
3) Second order derivative spectrophotometry
二阶导数光谱法
1.
Determination of berberine hydrochloride and baicalin in the Gegen Qinlian mini-pill by second order derivative spectrophotometry;
二阶导数光谱法同时测定葛根芩连微丸中盐酸小檗碱和黄芩苷含量
2.
Methods Second order derivative spectrophotometry was used.
目的建立二阶导数光谱法测定银黄清口服液中总绿原酸含量的方法。
3.
Determination of total chlorogenic acid in shuanghuanglian oral liquid by second order derivative spectrophotometry;
目的建立二阶导数光谱法测定双黄连口服液中总绿原酸含量的方法。
4) Newton's two_step derivative method
牛顿二阶导数法
5) second derivative equal to zero method
二阶导数为零法
6) second derivative spectrometry
二阶导数光谱法
1.
To take the amplitude D value of vitamin E at 295 nm as the quantitative analysis information by second derivative spectrometry.
方法以维生素E为主要原料制成乳膏,采用二阶导数光谱法,以维生素E吸收波长295 nm谷峰处的振幅D值作为定量分析信息。
2.
The baicalin in cream was identified by TLC method and the content of baicalin in cream by second derivative spectrometry .
方法:黄芩提取物以70％乙醇溶解,油相和水相分别加热至85℃, 充分混匀后制成乳膏;用薄层色谱法鉴别乳膏中的黄芩苷,并用二阶导数光谱法测定其含量。
补充资料：导数极谱法
分子式：
CAS号：
性质：记录dI/dE(或dI/dt)对E和d2I/dE2(或d2I/dt2)对E的关系曲线进行极谱分析的方法，称为导数极谱法。前者为一次导数极谱法(first derivative polarography)，呈一正峰和一负峰；后者为二次导数极谱法(second derivative polarography)，呈两正峰和一负峰。导数极谱法通常是用于减小前波的影响，提高测量的精确度和重现性。
CAS号：
性质：记录dI/dE(或dI/dt)对E和d2I/dE2(或d2I/dt2)对E的关系曲线进行极谱分析的方法，称为导数极谱法。前者为一次导数极谱法(first derivative polarography)，呈一正峰和一负峰；后者为二次导数极谱法(second derivative polarography)，呈两正峰和一负峰。导数极谱法通常是用于减小前波的影响，提高测量的精确度和重现性。
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