查询词典 quantitative determination

It has mild anti-inflammatory activity and protects against photocarcinogenesis in hairless mice. However, there have been very few reports on the quantitative determination of PABA in foods, plants and animal tissues.

PABA有温和的抗发炎且在无毛小鼠中能保护皮肤组织免受光照所引起的皮肤癌；然而，迄今少有文献报导PABA在食品及动、植物组织中含量之到定。

Objective To establish the method for the quantitative determination of patchouli alcohol in essential oil of Agastache rugosa with gas chromatography.

目的 建立藿香精油中百秋李醇的含量测定方法。

Based on this,a sensitive method has been developed for the quantitative determination of piperine in Mn-piperine-cetyltrimethylammonium bromide ternary system.

据此建立了在锰-胡椒碱-溴化十六烷基三甲基胺三元体系中测定胡椒碱的荧光分析新方法。

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。

Studies on quantitative determination of active principles in Chinese herbal medicine by second derivative differential pulse polarography.

二阶导数差示脉冲极谱法的建立及在药物分析中的应用。药学学报，1992，27(2)：157。[4] 梁云爱，李见春，门孝英。环磷酰胺及其制剂的二阶导数差示脉冲极谱法定量研究。

Based on the basic principle of reflection and transmission in the process of the propagation of logitudinal wave, this paper recounts a new theory and method for the application of pile body completeness inspection data with reflection wave method to the quantitative determination of apparent reflection coefficients and the round travelling time of reflection wave.

摘要从纵波传播过程的反射和透射的基本原理出发，介绍了反射法桩身完整性检测数据在频率域中定量确定视反射系数和反射波往返时间的一种新的理论和方法。

Objective: To establish gas chromatography-mass spectrometric method for the quantitative determination and confirmation of melamine in milk powder.

目的：建立气相色谱－质谱法测定乳粉中三聚氰胺含量的分析方法。

IR and UV-vis were used for qualitative analysis and the ultraviolet spectrophotometric method was used for quantitative determination.

并讨论了温度及阴极电流密度对邻甲苯甲酸产率和电流效率的影响。

A new method of quantitative determination for serum albumin in aqueous solution has been developed by measuring total internal reflection synchronous fluorescence at the solid/liquid interface.

中文文摘］应用全内反射与同步荧光相结合的技术，建立了利用蛋白质吸附在液-固界面上的同步荧光信号来测定本体蛋白质溶液浓度的新方法。

The quantitative determination of vitreosity and hardness of white wheat was investigated by image analysis.

应用计算机图像分析技术，在建立客观、准确的测定白麦角质率和硬度的方法方面进行了初步的探讨。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。