Conclusion Either ultraviolet spectrum or derivative spectrum can be used as a tool of quality evaluation of Hongqu. 结论:紫外光谱法可作为红曲药材的质量评价手段之一。
These results are analysed and discussed in combination with electrical derivative, optical derivative and spectrum measurement. 结合电导数、光导数及光谱测试进行了分析和讨论。
This proves that it is feasible to use the technology of derivative spectrum and the method of vegetation index to monitor the pigment concentration and growth of rice. 这表明,用微分光谱技术与植被指数方法来监测水稻的色素含量和长势应该是可行的。
Optical constants in the visible light region at room temperature are measured by using ellipsometric spectroscopy, and the third derivative spectrum of the dielectric functions are evaluated. 用椭偏光谱法测量了样品在室温下可见光区的光学常数,并求其介电函数的三级微商谱。
Analysis of sodium saccharin in foods by derivative spectrum 食品中糖精钠的导数光谱分析
Experiments and application situation on determination of dysprosium by fluorescence analysis and derivative spectrum analysis method are reviewed. 对近10a来的用荧光法和导数光谱法测定镝的研究及应用进行了综合报道。
The new method of derivative-ratio derivative spectrum for simultaneous determination of DNA and RNA is set up, and optimal detecting conditions are discussed. 用导数-比导数波谱同时测定DNA和RNA,并探讨了最佳测定条件。
This paper proposes a new method that was used for medicine analysis to determinate synthetic decanoyl acetaldehyde in compound Chinese medicines, by connection of standard addition method and ultraviolet second-order derivative spectrum. 将紫外二阶导数光谱与标准加入法相结合应用于药物分析,定量测定中药复方制剂中合成鱼腥草素的含量。
Determination of Avermectin B_1 Content by First-order Derivative Spectrum Analysis 一阶导数光谱法测定阿维菌素B1的含量
Studies on the Colour Systems of meso-Tetrakis ( 4-Methoxyphenyl) Porphyrin-Cd(ⅱ)-[ ( OP-Tween-80) or ( Tween-80)] and Their Dual-Wavelength and Derivative Spectrum Behaviour meso-四-(4-甲氧苯基)卟啉-镉(Ⅱ.)-[(OP-Tween-80)或(Tween-80)]显色体系及其双波长和导数光谱行为研究
The content of amygdalin had been determined with the method of derivative spectrum scanning. 二阶导数光谱扫描法,测定苦杏仁甙含量。
Through fluorescence spectra analysis, ultraviolet absorption spectrum and derivative spectrum, we conclude that it contains tryptophan and tyrosine residues. 荧光光谱分析结合紫外吸收光谱及导数光谱分析推断它含有色氨酸和酪氨酸残基。
Application of second derivative spectrum prepares in quantification measuring glucose-6-phosphate and fructose-6-phosphate using a FTIR/ ATR method 二阶导数光谱预处理在用FTIR/ATR方法定量测定葡萄糖-6-磷酸和果糖-6-磷酸中的应用
Establishment of Leaf Water Content Models Based on Derivative Spectrum Variables 基于导数光谱变量叶片含水量模型的建立
Content Determination of Scutellarin in Shuanghuanglian lnjection ( Flos Lonicerae, Radix Scutellariae, etc,) with 2nd Derivative Spectrum Method 二阶导数光谱法测定双黄连注射剂中黄芩甙的含量
Developments of the quantitative study of protein conformation by fourier transformation infrared spectroscopy ( FTIR) and computer-aided analysis are reviewed. The FTIR mensuration and computer-aided analysis methods such as secondary derivative spectrum, deconvolution, curve fitting, are briefly introduced. 综述了计算机辅助解析傅里叶变换红外光谱在蛋白质构象定量研究中的应用进展,简要介绍了红外光谱测定及二阶导数谱、去卷积和曲线拟合等计算机数学处理方法。
Quantitative determination of ketoprofen suppository by second derivative spectrum 二阶导数光谱法测定酮基布洛芬栓的含量
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。
A Wavelength-Intensity Splitter and a New Derivative Spectrum Technique 波长光强分束器与光谱导数的实现
The contrast between the method of derivative spectrum and the method of absorption spectrum in UV 紫外导数光谱法与吸收光谱法的比较
Determination of Serum Mg(ⅱ) by Derivative Spectrum 导数光谱法测定血清镁
By means of three-point-scaling, the third derivative spectrum of the dielectric functions can be calculated. Thereby, the accurate E g, E g+ Δ 0 and the energy position of transition for the paired structure above E g are obtained. The results are discussed. 用三点比例内插法分析介电函数的三级微商谱,精确地得到样品的带隙Eg、Eg+Δ0以及Eg以上成对结构跃迁的能量位置,并对其结果加以分析。
The feasibility of quantitative analysis by derivative spectrum of transmittance 关于透光率导数光谱用作定量分析的可行性
METHODS: First order derivative spectrum was used as the concentration determination method. 方法:用一阶导数光谱法测定青藤碱凝胶的含量。
Several problems of hyperspectral technology in the plant remote sensing are discussed in this paper, such as plant "red edge" quantitative analysis and its applications, plant biochemical component inversion, the meaning of derivative spectrum in the plant study. 文章论述了高光谱技术在植被遥感应用领域的若干问题,如植被红边定量分析及其应用、植被生物化学成分反演、植被研究中导数光谱的意义等;
Derivative-ratio derivative spectrum method for determining nitrate and nitrite radicals ( NO_3 and NO_2) in environmental water 导数-比导数波谱法同时测定环境水样中硝酸根和亚硝酸根的含量
After measuring some spectral curves of typical plants a-round Dexing copper mine by spectroradiometer and estimating the position of red edge from hyperspectral data by derivative spectrum technology, it is show that the red edge of plant shifts from originally red to shorter blue. 用成像光谱仪野外测试江西德兴铜矿区典型植被的冠层反射波谱曲线,利用导数光谱评价植被红边位置。
Both the normalized spectrum and the first order derivative spectrum can estimate the effect better. The latter is more accurate. 归一化光谱和一阶微分光谱都能获得较好估算效果,相比之下,后者的精度更高。
Generally, derivative spectrum is more sensitive to water quality changes than original spectrum, especially for the optically sensitive parameters, such as, chlorophyll, TSM, and turbidity. 导数光谱与各水质要素间的最大相关系数均高于原始光谱,导数光谱对水体水质特征变化更为敏感,特别是对光学敏感性水质参数,如叶绿素、悬浮物、浊度等。
The paper identifies the first derivative spectrum AVE ( 691+ 692-609) linear model to estimate the chlorophyll-a. Constructing the inversion models based on the semi-empirical method. It uses ETM remote sensing data to invert chlorophyll-a concentration. 4. 本文确定一阶微分光谱AVE(691+692-609)线型模型估算叶绿素,利用半经验法模型法构建了叶绿素a的反演模型,并利用ETM遥感数据反演了叶绿素的浓度。