您要查找的是不是:
- :Illicium vatum Hook.f.and Illicium lanceolatum A.C.Smith;FTIR;Secondary derivative spectra;2D-IR correlation spectra 知网空间,八角茴香与其伪品莽草的红外光谱三级鉴定研究,八角茴香和莽草,红外光谱,二阶导数谱,二维相关红外光谱
- Secondary derivative spectra 二阶导数谱
- secondary derivative spectrum 二阶导数谱
- In the second-step identification, the resolution of spectrum in the secondary derivative IR spectra was better than that of 1D-IR.Furthermore, the rule of spectra in 1D-IR was further demonstrated. 在二级鉴定中,二阶导数谱显示了比一维红外谱图更高的分辨率,同时进一步确认一维红外谱图的成谱规律;
- Results Obvious differences exist in the ultraviolet spectra and derivative spectra of the Hongqu produced with different species. 结果:不同种红曲霉制备的红曲的紫外光谱及其导数光谱存在明显差异。
- The secondary derivative differential pulse polarography was developed for the quantitative determination of chrysophanol in rheum. 建立了中草药大黄中大黄酚的二阶导数差示脉冲极谱定量分析方法。
- 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(FTIR)并结合二阶导数谱对几种奶粉产品进行了无损快速鉴别。
- Aim The secondary derivative differential pulse polarography was developed for the quantitative determination of the aesculin in medicinal herbs (?Cortex Fraxini?). 目的 :建立中草药秦皮中秦皮甲素的二阶导数差示脉冲极谱定量分析方法。
- In this method, the propranolol were extracted by GDX403 resin and eluted by methanol.The content of propranolol were obtained by determing UV 2nd derivative spectra of elutent. 肝中心得安用GDX403树脂吸附然后用甲醇洗脱,用二阶紫外导数光谱测定心得安的含量。
- D by using the first derivative spectrum and REP, and the properest models were index(R2=0.9487)and parabola (R2=0.9392) respectively. D 是可行的;最适模型分别为指数(R2=0.;9487)和抛物线(R2=0
- The first derivative spectrum is more correlatively with the biophysical parameter including chlorophyll density and LAI. 综合分析,孕穗期是利用高光谱遥感进行作物长势和养分诊断研究的最佳时期。
- The second-class derivative spectrum method was u sed to determine the amygdalin contents of Prunus persica(L .) Batsch. from three different areas (Fujian, Anhui, Xinjiang). 采用二阶导数光谱法直接测定三种不同产地(福建、安徽、新疆)桃仁中苦杏仁甙的含量。
- We applied ATR Fourier Transform Infrared(FTIR) spectra and second derivative spectra to analyze the alcoholicity and content of sugar of red wines produced by different manufacturers for the first time. 首次采用衰减全反射(HATR附件)傅里叶变换红外光谱法并结合二级导数谱对市售的若干种不同厂家葡萄酒的酒精含量和糖含量进行了快速无损分析。
- A piece-wise multiple regression procedure was used to generate multivariate linear equations for predicting TC,TN and TP using the original,and the derivative spectra of CASI data. 利用CASI原始光谱、一阶和二阶微分光谱数据和逐步回归分析来预测TC、TN和TP。
- A new method to resolve nearly overlapping spectra is proposed.By means of derivative spectrum the discrepancy of constituents can be enlarged,thus the analytical sharpness of separation was improved. 利用导数光谱能增大组分的光谱差异,从而提高二维联用数据解析的分辨率,通过将二维数据对波长求导,以解析光谱相近的同系物体系。
- Determination of Colchicine by Secondary Derivative Polarography 秋水仙碱的二阶导数极谱测定
- Derivate spectra have the trend of shift to long wavelength direction and exist "two peak" phenomena at more significant increase of the nitrogen level. 一阶导数光谱随着施氮水平的增加,具有向长波方向移动的趋势,同时随施氮水平的增加,“双峰”现象则愈显著。
- Sceond-order derivative spectrum 二阶导数谱
- derivative -ratio derivative spectrum 导数-比导数光谱
- Her age is of secondary interest. 她的年龄不太重要。