查询词典 spectrophotometry

The catalysis of single and mixed micelles and functional molecules for alkaline hydrosis of acetanilide has been studied at 40℃ in aqueous acetonitrile solution with UV spectrophotometry.

在40℃下乙腈水溶液中，用紫外分光光度法研究了单一和混合胶束及功能分子对乙酰苯胺碱性水解反应的催化作用。

A evaluation method for the performances and quality of chromatographic grade acetonitrile with ultraviolet spectrophotometry and high performance liquid chromatography is presented.

利用紫外分光光度计和高效液相色谱仪建立了色谱纯乙腈的性能和质量的评价方法。

UV spectrophotometry can be applied to liquid milk and milk protein in the rapid testing and inspection adulteration.

紫外分光光度法适用于液体奶、奶粉中蛋白质的快速检验和掺伪检验。

Amounts of the glycyrrhizic acid were determined by ultraviolet spectrophotometry at 252 nm wavelengh. Result The best extraction conditions from decoct method were that amount of affusion wate was 200 mL, extract 2 times, boiling time was 5 min, crash time was 20 s.

利用正交试验4因素3水平选择最佳提取条件(包括加水量、提取次数、煮沸时间、粉碎时间、溶剂量、振荡时间、氨水浓度)，用紫外分光光度法在252 nm波长处测定甘草酸含量。

To examine the capacity of alkaline resistance of Albizzia julibrissin Durazz seedlings,the contents of MDA,soluble sugar and proline,and the activity of POD and SOD in Albizzia julibrissin durazz tree body were measured by means of visible spectrophotometry.

为检测合欢幼苗的抗碱胁迫能力，文章试验利用可见分光光度法测定了碱胁迫下合欢幼苗体内的丙二醛、可溶性糖、脯氨酸含量及POD、SOD活性，分析这些生理指标在不同处理浓度、不同处理时间下的变化规律，探求碱胁迫下合欢幼苗的抗逆生理机制。

To explore physiological mechanism of how alkaline stress affects the growth of the Albizzia julibrissin Durazz seedlings, the concentrations of malonaldehyde, soluble sugar and proline, and the physiological indexes as peroxidase and superoxide dismutase were measured by means of visible spectrophotometry.

为探求碱胁迫影响合欢幼苗生长的生理机制，采用可见分光光度法测定合欢幼苗体内丙二醛含量、可溶性糖含量、脯氨酸含量及过氧化氢酶、超氧化物歧化酶活性等生理指标。

A method for the determination of aloin and aloe-emodim in aloe vera was established based on multi-wavelength linear regression spectrophotometry in wavelength range of 350-450nm with a regression equation.

依据芦荟苷与芦荟大黄素的光谱特征，选择350-450nm为测定波长范围，用多波长直线回归分光光度法同时测定芦荟中芦荟苷和芦荟大黄素含量。

A ratio spectra derivative spectrophotometry for simultaneous determination of quaternary mixture of aminopyrine, phenobarbital, caffeine and phenacetin was studied.

提出了可应用于四元混合体系同时测定的比光谱-导数分光光度法，阐述了该方法的基本原理，并将其应用于氨基比林、苯巴比妥、咖啡因和非那西丁四元混合体系中各组分的同时测定。

METHODS:Aminopyrine and antipyrine in Antongding injection were determined by radial basis fuction neural network UV spectrophotometry,barbitial was determined with absorbance substraction technique.

采用径向基函数紫外分光光度法同时测定安痛定注射液中的氨基比林和安替比林，并结合吸光度减技术测定巴比妥。

Methods The activities of liver microsomal erythromycin N-demethylaseand aminopyrine N-demethylase were measured by spectrophotometry. The levels of mRNA expressions of CYP3A1, CYP1A2, CYP2E1, mdrla and mdrlb in hepatic microsome were determined with RT-PCR method.

用分光光度法测定大鼠肝微粒体红霉素N-脱甲基酶、氨基比林N-脱甲基酶的活性，用逆转录聚合酶链反应技术测定大鼠肝脏CYP3A1、CYP1A2、CYP2E1、mdr la和mdr lb基因的水平。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。