1) second derivative spectra
二阶导数谱
1.
Several kinds of powdered milk were identified fast and nondestructively by Fourier transform infrared spectroscopy (FTIR) combined with second derivative spectra.
采用红外光谱法 (FT IR)并结合二阶导数谱对几种奶粉产品进行了无损快速鉴别。
2) Second derivative spectrum
二阶导数光谱
1.
The second derivative spectrum peak area spectrophotometry for determination of nickel(Ⅱ)was estabished in tribasic complex chromogenic system.
本文在镍 ( )丁二酮肟—阿拉伯胶的显色体系中 ,引入二阶导数光谱——峰面积技术 ,对显色体系及测定方法进行了研究。
2.
0nm as sample,the fluorescence spectrums of sixteen normal persons,thirty-six diabetic patients and eleven bladder cancer patients were collected from 495nm to 640nm,and we had used the second derivative spectrum and wavelet transform spectrum to process data intensively.
0nm的氩离子激光器作为激发光源,用尿液作为样品,在495nm～640nm范围内采集16例健康人、36例糖尿病患者(Ⅰ型糖尿病20例,Ⅱ型糖尿病8例,糖尿病酮症8例)以及11例膀胱癌患者尿样的荧光光谱,并利用求二阶导数光谱和小波变换光谱等方法对所得荧光光谱进行了深入细致的分析。
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) Second-derivative absorption spectra
二阶导数吸收谱
1.
Second-derivative absorption spectra and steady-state fluorescence quenching were used to investigate the interaction between three anti-inflammatory drugs(NSAIDs), namely, indomethacin, sulindac and tolmetin, with egg phosphatidylcholine (EPC) liposomes, which served as a membrane mimetic system.
药物的二阶导数吸收谱成沟槽型,在脂质体中沟槽变浅,但波长基本上不移动,表明药物结合在磷脂双层的表面而没有进入到脂双层内部。
5) second derivative spectra
二阶导数光谱
1.
To study the advantage of using partial Least-squares and artificial neural network (PLS-ANN) to analyze the second derivative spectra of plasm of gastric cancer autofluorescence spectra, we measured 20 pieces of plasm of gastric cancer and 23 pieces of health control autofluorescence spectra at the excitation wavelength of 405nm and emission wavelength in the range of 425～700nm.
探讨偏最小二乘法结合神经网络法(简称PLS-ANN)分析血浆自体荧光光谱的二阶导数光谱识别胃癌的优势,对20例胃癌病人和23例健康人血浆进行以405nm为激发光的自体荧光光谱检测,采用PLS-ANN法分别对血浆自体荧光光谱和二阶导数光谱进行判别分析。
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