查询词典 reagent

Compound glycerin injection in 2-fold dilution applied in 0.5 EU/ ml limulus reagent in detection of its pyrogen is feasible.

对甘油氯化钠注射液进行2倍稀释以0.5EU／ml的鲎试剂检查其热原是可行的。

The alcoholysis PET beverage bottle,glycerol,2.5% H2SO4 and microwave radiation were used as the liquefacient,ancillary reagent,catalyst and heating source respectively to achieve liquefaction of wood.

以醇解的聚酯饮料瓶为液化剂，甘油作辅助液化剂，微波辅助加热，用2.5%H2SO4催化液化木材。

The results showed that the stability was good and the absorbance fluctuates lisle at pH=3~4, the temperature was at 15~28℃, the chromogenic reagent was 2mL and the time of coloration was 20~40min.

结果表明：pH值在3~4之间，温度在15~25℃之间，显色剂用量为2mL，显色时间在20~40min，显色稳定，样品吸光度无明显变化，实验能达到较理想的效果。

COS-7-cell line grown to log phase was transfected using lipofectamine reagent. The expression level of β-NGF mRNA and the biological activity were analyzed by Northern blot and observation of neurite outgrowth of PC12 cell line stimulated by supernatant, respectively.

利用脂质体 Lipofectamine方法转染 COS-7细胞，对阳性克隆 COS-7细胞的 mRNA和培养上清分别进行 Northern blot分析和观察对 PC12细胞突起生长的作用。

Methods: In accordance with conventional reporter gene analysis reagent preparation method, the main component Luciferase, Luciferin and ATP were serial diluted to find the optimal concentration; Reaction solution was prepared according to the optimal concentration of the main component, then ATP were serial diluted to measure their reporter gene. Then standard curve of ATP were drawed. Tumor cell lines H1299 were serial diluted and their ATP were measured by reaction solution prepared to analyse the minimum cell number.

按照常规报告基因分析试剂配制方法，将其中主要成分Luciferase和Luciferin及ATP浓度进行倍比稀释后找到最适合反应的最佳浓度值；按照最佳浓度配制反应液，将ATP浓度倍比稀释测定报告基因数值并绘制标准曲线，分析检测灵敏度；另外选取肿瘤细胞株H1299，倍比稀释后裂解细胞应用配制好的反应液进行ATP检测，分析最低检测细胞数。

Objective to explore the action of main reagent alkaline lysis method of extracting plasmid DNA.

目的 对碱裂解法提取质粒DNA中主要试剂的作用进行研究。

The effect of reaction parameters such as quantity of NaCl, magnesium carbonate and crosslinking reagent, water-to-monomer ratio and polymerization temperature on particle sizes was investigated in detail.

着重研究了反应体系中电解质的用量、聚合反应温度、水油比、碱式碳酸镁及交联剂的用量等反应参数对微球粒径的影响。

Using carubinose as standard, DNS as color developing reagent, the content of mannan in coconut shell was indirectly determined by spectrophotometry.

以 D-甘露糖为标准，DNS作显色剂，用分光光度法间接测定椰子壳中甘露聚糖的含量。

Through orthogonal experimental design,the optimal additive amount of buckwheat,soybean...were determined,namely buckwheat flour 10%,soybean flour 6%,and bread meliorative reagent 0.8% per flour basis.

以荞麦粉、大豆粉、面包改良剂为主要添加成分，研制荞麦大豆面包，通过正交试验，确定了三者的最佳添加量，即荞麦粉、大豆粉、面包改良剂分别占面粉重的10%、6%、0·8%。

A quick detection reagent for methanal is described in the paper.

食品中甲醛的含量超过标准，有碍人体健康，对食品中甲醛的检测有多种方法，这里介绍了一种快速检测甲醛的试剂。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。