查询词典 nitric acid

Nitric acid deoxidization enzyme method was chosen to measure the content of NO in serum.

酶法测定血清NO含量，SABC法检测子宫内膜iNOS、Bcl-2的活性表达及TUNEL法检测内膜细胞凋亡。

The effect of hydrogen ion concentration on the lead dioxide electrodeposit was investigated by Diusman and Giaque using lead nitrate -nitric acid solutions in water.

Diusman与Giaque采用硝酸铅-硝酸水溶液研究了氢离子浓度对二氧化铅电沉积的影响。

A salt or ester of nitric acid .

硝酸形成的一种盐或酯。

After the ferromolybdenum was dissolved completely in nitric acid at low temperature,adding internal standard elements of ~(45)Sc,by use of internal elements calibrated method,the content of Sb,Cu,Sn,Si and P in ferromolybdenum is determined directly by ICP-MS.

将钼铁样品用HNO3低温溶解完全后，加入内标元素45Sc，采用内标法，用ICP-MS仪进行测定。文中讨论了基体钼对测定的影响。本方法的加标回收率为98.0%~102.5%，相对标准偏差RSD为1.6%~3.5%。本方法具有简便、快速、准确等特点，可用于钼铁样品中微量杂质元素的分析

Separation of the two components is accomplished by dissolving the frit in dilute nitric acid .

将玻璃料溶于稀硝酸中来完成两个组分的分离。

The nuclear fuel rod is usually dissolved in concentrated nitric acid and extracted using chelate - containing organic solvent.

处理核燃料棒一般需要大量之有机溶剂以及硝酸，因而会产生大量之废液。

A new recovery technology of solid waste was made which is from furfuryl alcohol production by furfural hydrogenization. When the solid waste is placed in a vacuum drying box, and is under lower negative pressure and at 130℃, the organic materials in solid waste can be distilled and then returned to the refining workshop to produce qualified furfuraldehyde and furfuryl alcohol. The remainder is mixed with soda ash and roasted in a reverberating furnace. The sodium chromate can be obtained by leaching. Rough cupric oxide is dissolved in nitric acid and cupric nitrate is obtained. A new catalyst was prepared by the above sodium chromate and cupric nitrate and used in furfuryl alcohol production.

将糠醛液相加氢生产糠醇产生的废渣置于真空干燥箱中，在较低的负压状态下保持130℃的温度，蒸馏回收废渣中的有机物，返回糠醇精制车间获得合格的糠醇与糠醛产品；剩余的固体废弃物与纯碱混合，在反射炉中焙烧，浸取获得铬酸钠水溶液；最后剩下的粗氧化铜溶于硝酸得到硝酸铜溶液；将铬酸钠溶液、硝酸铜溶液按一定比例混合，加入氨水搅拌，分离出的沉淀经传统方法焙烧活化、造粒制得新催化剂，回用于糠醛液相加氢生产糠醇。

An effective procedure for the production of chromium yellow with nitric acid hydrolysis solution of Galena was studied.

应用方铅矿的硝酸酸解液可生产出多种铅产品，其中合成铅铬黄是比较便捷的一种。

It is the intense heat of lightning that forces the nitrogen to combine with oxygen in the air, forming nitrogen oxides that are soluble in water and fall to the earth in rain as dilute nitric acid.

闪电的高温是氮和空气中的氧化合成能溶于水的氧化氮，随雨水进入土地，稀释成硝酸。

Hill Camellia can resist sulphur dioxide, hydrogen chloride and nitric acid fumes and other hazardous materials violations.

山茶花能抗御二氧化硫、氯化氢和硝酸烟雾等有害物的侵害。

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。