测定法

Ten sodium compounds in 5 different concentrations were used to test their influence on phytotoxin produced by Alternaria alternata (GL-6) on tobacco which were treated by the seed-root method.

为确定不同钠盐对烟草赤星病菌AT毒素毒性的影响，作者采用摩擦接种处理、浇根处理、种子根处理3种生物测定方法，确定了以烟草种子根处理法作为烟草赤星病菌的毒性测定方法。

Traction and by adoption of spectrophotometry to direct measurement of concentration of picric acid in desulfurized solution, a new method for determination of the concentration of picric acid in desulfurized solution.

摘 要：通过苦味酸与结晶紫缔合，利用环己烷萃取，采用分光光度法直接测定脱硫液中苦味酸的浓度，从而建立了1种测定脱硫液中苦味酸的新方法。

Combination with the practice of domestic aluminium production industry, the 3—D current distribution, magnetic flux density, electro—magnetic force, melt flow velocity field of three diffrent cells, that is, 80KA Soderberg cell with vertical stub, 155KA prebake cell, 160KA prebake cell were computed and the related computer—simulated pictures were drawn by use of the softwares we made.

本文利用电流分布、磁场、电磁力场和流场的计算软件，结合我国生产实际计算了80KA上插自焙槽，155KA预焙槽，160KA预焙槽三种不同槽子的三维电流分布，槽内磁感应强度，熔体中电磁力场，熔体流速场，绘制了相应的计算机仿真图，为了增加计算软件的可靠性、用铁棒法测定了80KA上插自焙槽，155KA预焙槽的铝液流速，测定值与计算值符合较好。

The ice/liquid mixtures of the coolant and the sample solution were respectively added in the Dewar bottle and the sample container to precool for 2～3 hours under stirri...

实验结果显示，改进的凝固点降低法测定摩尔质量实验装置结构合理，其测定误差可控制在±0.001℃以内。

This method was proposed for measurement of trace gold in waste water samples without preseparation.

该法用于含金废液中微量金的测定，不需予分离，测定结果与火焰原子吸收光谱法吻合。

Methodsa gradient hplc system was used in the quantitative analysis of the danshensu ,protocatechuic aldehyde and salvianolic acid b in 6 hours,and its ph was determined at 25℃for 24 hours.

方法采用高效液相色谱法梯度洗脱测定配伍液中6 h内丹参素、原儿茶醛、丹酚酸b的含量。并在25℃时24 h测定配伍液的ph值。

Abstract］ Objective To study a RP-HPLC methods that determined the protocatechuic acid content in Fuxuekang Jiaonang.

妇血康胶囊中原儿茶酸的含量测定［摘要］目的建立反相高效液相色谱法测定妇血康胶囊中原儿茶酸的含量。

Objective To establish the method of detemtemine for Spatholobus suberectus Dunn.Methods HPLC method was developed for the determination of protocatechuic acid in Spatholobus suberectus Dunn.

HPLC法测定不同产地的鸡血藤中原儿茶酸的含量的学习资料是由论文学习免费网收集整理目的建立鸡血藤的含量测定方法。

Tenuifolia in 2007. Method: The test fields were divided into blocks randomly, and the agronomy characters were investigated in harvest time; the content of volatile oil was measured by steam distilation and the pulegone were determined by HPLC.

田间实验采用随机区组设计，收获期调查其主要农艺性状；采用水蒸气蒸馏法测定挥发油含量，HPLC测定胡薄荷酮含量。

The biological effect of pUCP18/lasR was detected by RT-PCR, NAD method and the assay of pyocyanin.

RT-PCR检测LasB基因和LasI基因mRNA的表达，NAD法测定外毒素A的活性，紫外分光光度计测定绿脓菌素的产生水平。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。