查询词典 reagent

In which 18.02 and 230.08 are the molecular weights of water and sodium tartrate dihydrate, respectively; W is the weight, in mg, of sodium tartrate dihydrate; and V is the volume, in mL, of the Reagent consumed in the second titration.

其中18.02和230.08是水和酒石酸钠的各自分子量，W是二水酒石酸钠的重量，以mg计，V是第二次滴定消耗的卡尔试剂的体积，以毫升计。不好意思，废话不多说，请大家多指教

The fluorometric reagent with no horse radish peroxidase can eliminate difficulties caused by possible loss of enzyme activity.The detection limit is 7 1×10 8 mol/L.

测定所用的荧光试剂不含辣根过氧化物酶，从而避免了生物酶在使用过程中因可能的失活给分析工作所带来的困难。

We want to buy Chemical Reagent, Agrochemicals, Chemical Processing Plants, Chemical Supplies

我们要采购化学试剂，农药，化学的处理植物

The catalyzed oxidation of cyclohexanol with 30% aqueous hydrogen peroxide by mass fraction to produce adipic acid can be achieved using tungstic acid -acidic additive catalyst system in the absence of organic solvents and phase-transfer reagent.

以钨酸-酸性添加剂为催化体系，在无有机溶剂和相转移剂的情况下，催化30%过氧化氢氧化环己醇合成己二酸。

The CRMLN has developed a method comparison protocol leading to certification for analytical systems, reagent applications, calibrators and reference materials.

该CRMLN已经开发出了一种比较的协议导致对分析系统，试剂的应用，校准和参考材料认证。

A reagent, called the titrant or titrator[1], of known concentration and volume is used to react with a solution of the analyte or titrand[2], whose concentration is not known.

一种叫作滴定液的浓度和体积已知的试剂与未知浓度的被测物或被滴定物反应。

A new method for the determination of copper in the copper ore leaching solution by precipitate complex reagent mixing solution separation out copper and by KIO3 as titrant is developed.

该法用沉淀络合剂从混合液中将Cu沉淀分离出来，用KIO3滴定，具有简便、快速、准确、可靠等特点，应用于实际样品的测定中，其结果与络量法一致

The chemiluminescent reagent is the basis of CL analysis and its properties are very important for increasing the sensitivity and extending the application of this method.

化学发光试剂是化学发光分析的基础，开发和使用发光量子产率高的试剂，对提高化学发光分析的灵敏度和扩大其应用范围具有十分重要的意义。

Because chemiluminescence is a rapid and sensitive method, it can be used to study other reaction, such as photochemical reaction and other chemical reaction that can produce active chemiluminescent reagent.

由于化学发光是一种快速、灵敏的检测方法，因此它在研究这些反应产生不稳定的中间体时显示了极大的优越性，并获得了其它方法所不能获得的一些结果。

N-methylmaleimide was prepared by using dimethyl sulfate as methylation reagent.The paper investigated the addition of N-methyl-3,4-dibromomaleimide and indolylmagnesium bromide,and then 2-bromo-3-(1H-indolyl-3-yl)-N-methylmaleimide and 3,4-bis(1H-indolyl-3-yl-)-N-methyl-maleimide were obtained.

对吲哚在溴乙烷和镁作用下生成吲哚溴化镁，而后与3，4－二溴－N－甲基马来酰亚胺的加成反应进行了研究，合成了2－溴－3－(1H－吲哚－3)－N－甲基马来酰亚胺，并对反应条件进行了改进，研究了反应温度和原料配比对反应的影响。

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。