查询词典 reagent

We studied the denaturation process of HPI by using disulfide scrambling and compared the results with that obtained from unfolding of HPI in the presence of reducing reagent or denaturant separately.

因此，我们利用这种方法对HPI的解折叠进行了研究，并与仅有变性剂或还原剂存在下HPI的解折叠进行了比较。

It is used extensively in industrial processing of metals and concentrating of some ores; in boiler scale removal, food processing, metal cleaning, and pickling; and as a chemical intermediate, laboratory reagent, and alcohol denaturant.

工业上广泛使用盐酸来处理金属和提炼某些矿物，或用于锅炉除垢、食品加工、金属清洁和酸洗，还可作为化学中间体、实验室试剂以及酒精变性剂。

It is used extensively in industrial processing of metals and concentrating of some ore s; in boiler scale removal, food processing, metal cleaning, and pickling; and as a chemical intermediate, laboratory reagent, and alcohol denaturant.

工业上广泛使用盐酸来处理金属和提炼某些矿物，或用于锅炉除垢、食品加工、金属清洁和酸洗，还可作为化学中间体、实验室试剂以及酒精变性剂。

Assisted solution according to the case, if it was use for research done, it was best to support KCI solution; if it was use for student to experiment, it was best to support dialyzate, because it not only enable student to understand the phenomenon of electrophoresis, but also save time and reagent.

辅助液依据情况而定，实验研究中KCl做辅助液较为合适；学生实验渗析液做辅助液较好，因为这样既能使学生认识到电泳现象，又可以节省时间和试剂。

The roles of activation of ethylene diamine phosphate and reagent D_2 on copper oxide minerals were studied.

氧化铜矿的有效浮选一直是研究工作者十分关注的问题。浮选氧化铜矿的方法很多，但应用最广泛的是硫化一黄药法。

In this paper,the factors,which consisted of acidity,nitrite,the time of diazotization,concentration and time of decomposing excessive NaNO2,dosage of N-na reagent,time of coincidence and beam,were studied to character the effect of analysis for aniline compound in water.

研究了酸度、亚硝酸盐、重氮化时间、分解过量NaNO2所用试剂的浓度和时间、N-na试剂用量及偶合时间、光线等因素对水体中苯胺类化合物分析的影响。

One was HF/pyridine diazotization reaction at the 4-position of fluorene ring, and the other was Grignard reaction on the 9-position with Grignard reagent of pentafluorochlorobenzene.

使用HF/吡啶法在芴环的4位引入了氟原子，使用五氟氯苯格氏试剂在芴环的9位引入了全氟苯，合成了五个氟取代三联(9，9-二苯基)芴化合物。

The obtained Dichondra Repens forst polysaccharides were determined by spectrophotometry at wavelength 490nm with phenolsulfuric acid as a color reagent.

多糖经苯酚－硫酸显色后在490hm处用紫外－可见分光光度计进行比色测定。

Using these diagrams, thermodynamic analysis is carried out to show the effect of technical conditions on soda decomposition of scheelite. It appears that the concentration of has direct effect on soda decomposition of scheelite. When the alkalinity is low, will hydrolyze to , accordingly the decomposition rate of scheelite becomes lower because of the decrease of . So in order to get higher leaching rate in industry practice, it is necessary to use enough amount of soda to serve as digestion reagent and, certain amount of NaOH to maintain high enough alkalinity.

利用这些热力学平衡图对Na2CO3分解白钨矿的工艺条件进行了分析，认为溶液中浓度直接影响白钨矿分解，而当碱度较低时，Na2CO3将水解生成，从而降低浓度，进而降低白钨矿的分解率；故在工业实践中，为使钨最大限度地转入溶液，除了保证足够的Na2CO3用量，还必需添加NaOH以维持一定碱度。

Methods: The content of 7-ACA raw material was determined on C18chromatographic column by using disodium hydrogen phosphate reagent.

用磷酸氢二钠试剂，在C18色谱柱上测定7-氨基头孢菌烷酸原料的含量。

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。