查询词典 reagents

This paper has studied preparation of Grignard reagents under phonochemistry and optimum technologic conditions is: the power of ultrasonic is 500W and frequency is 250KHZ, having twelve energy conversion devices, water bath temperature being 20C, solvent being THF,unstirred.

本文探讨了超声波合成格利雅试剂的机理，研究了声化学法制备格利雅试剂氯化苄基镁的最佳工艺条件为：在超声波的功率为500W，频率为25KHZ，有12个换能器的条件下，水浴温度为20℃，以THF为溶剂，不搅拌。

According to concerning chief introduction, at present blue green alga of domestic and international processing basically has put in chemical reagents, machinery to catch, biology pulls alga, shading to be divided except alga, electrochemistry alga, artificial wait for measure wetly except alga.

据有关负责人介绍，目前国内外治理蓝藻主要有投放化学试剂、机械捕捞、生物拉藻、遮光除藻、电化学除藻、人工湿地除藻等办法。

MAP is a kind of fertilizers which can be sold for reducing the expense of chemical precipitation method running. Though large numbers of experiments some kinetic parameters, including the value of pH, the relationship between the rate of ammonia-nitrogen removal and the ratio of reagents selected in reaction, reaction time and speed of whisking and so on were obtained.

在大量实验的基础上，通过对反应的几个动力学参数的详细研究，总结出了pH 值、反应药剂配比等与氨氮去除率的关系，并通过正交试验设计与单因素分析得出该方法在处理高浓度氨氮废水中最佳的工艺条件。

The FIAlab-2700 is the first commercially available FIA system which offers a four channel syringe pump for aspirating/dispensing carrier, sample, and reagents.

FIAlab-2700 是第一个商业上FIA系统，提供4通道注射器泵浦它提供了载流液，样品，反应剂的抽吸与释放。

This part includes chapter 5, 6, 7, 8, and chapter 9. In chapter 5, we synthesized four Ruthenium chelates, which can be used as ECL reagents. We also investigated their fluorescent properties as well as their electrochemical and ECL properties.

在第5章中，我们合成了四种带有标记基团的钌配合物电化学发光试剂，并对所合成的四种化合物的荧光性质、电化学性质及电化学发光性质等进行了初步探讨。

The experiments include the flotaion of the different types of the Yinshan ores with different kinds of the flotation reagents and different flowsheets. The authors consider that for the flotaion of the lead and zinc ores, the necessity of using cyanides as depressants depends chiefly on the amounts of pyrite present and its ...

作者认为，对于那些黄铁矿含量少或黄铁矿易被抑制的铅锌矿石，采用优先浮选而不用氰化物作抑制剂是可行的，但对于那些含量大且可浮性好的黄铁矿的矿石，如果完全不用氰化物则要从药方与流程等来考虑。

Complete details should be provided for the preparation of the mobile phase, including the order of addition of the reagents and the methods of degassing and filtration.

需详细说明流动相的配制，包括试剂的添加顺序，去气和过滤的方法。

This is the 21st medicines and chemical reagents since 1998 depreciates.

这是自1998年以来的第21次药品降价。

One of the most powerful recipes in Median XL, this recipe uses the reagents obtained by disenchanting uniques to turn a single item of your choosing into a unique.

在魔电XL里的一个强力合成公式是用暗金分解的碎片把普通物品转变为暗金物品。

Especially, chiral metal complexes and organo-catalysts in combination with electrophilic fluorinating reagents have found applications to the synthesis of a variety of chiral fluoroorganic compounds.

特别是，手性金属配合物和有机催化剂诱导的不对称催化氟化反应被广泛应用于各类手性氟化物的合成，已成为不对称氟化反应研究的热点。

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。