碱性液

Therefore, the nickel impurity in the chromium-plating bath was determined using spectrophotometry, which was based on the reaction between nickel ions and diacetyldioxime, generating a red complex, in the presence of alkali and ammonium per-sulfate. The measurement was carried out in 3cm color-matching cells at a wavelength of 510nm, using the sample without chromogenic agent as the reference.

在碱性和过硫酸铵存在的条件下，镍离子与丁二酮肟生成水红色配合物，利用这一特性，以丁二酮肟光度法测定镀铬溶液中镍杂质的含量，以不加显色剂的试样作参比液，用3cm比色皿，在波长510nm处测定。

The textures etched by KOH after beening oxidated had well adsorption ability with protein for its high surface energy and high adhibiting ability. It can chelate more kinds of protein with more quantities.

硅基片经碱性刻获得的绒面氧化后因其较大的比表面积、特殊的空间结构及较小的固液接触角θ，对蛋白质具有较强的吸附能力，螯合的蛋白质种类多、丰度大。

MethodsDross were purged from Luohanguo extract with water by ZTC1+1 clarifier, mogroside were isolated by D101 macroporous resin, decoloured on a D301R weak alkaline ion exchange resin.

方法用ZTC1+1澄清剂除去罗汉果水提液中的杂质，以D101大孔吸附树脂分离罗汉果甜苷，D301R弱碱性离子交换树脂脱色。

E . ratio of resin column to its diameter , flow rate of the diesel fuel samples on adsorption , and the effects of composition , flow rate of the eluant on desorption were studied . The suitable methods were also established about extraction , elution and regeneration in the resin column.

树脂吸附碱性氮吡啶的动力学和热力学研究表明：温度在288.15K～298.15K之间，树脂对吡啶的吸附过程动力学机理模型为缩核模型，吡啶溶液质量浓度为50mg/L时，主要受液膜扩散的控制，其有效扩散系数为K_f

Pearl ornaments should avoid exposure to acid-alkali substances and high temperature. they should also avoid direct exposure to perfume, hair crem and oil and salt, etc.when you wash your face and take a bath, you should take them off.

珍珠首饰应避免与酸碱性物质及高温接触，也应避免与香水、发乳及油盐等直接接触，洗脸、洗澡时应取下，珍珠沾有汗水和污物时，用中性洗涤液稍加浸洗，用水冲净。

The campaign of induction furnace is lower because 10t main frequency furnace uses of acid refractory liner that is corroded by liquid iron and basic slag under the working condition of high temperature and full load and abr aded in the process of charging cold burden.

10t工频感应炉炉衬原采用酸性耐火炉衬，在高温满负荷工作状态下，受铁液及碱性炉渣侵蚀，加冷料过程中受机械磨损，造成感应炉炉龄低。

The invention provides a method when alkaline protease hydrolyses from big molecular collagen into minor polypeptides, free amino acids in enzymatic hydrolysate increase gradually, a positive correlation is shown between increased amount and hydrolysis degree, so the hydrolysis degree can be calculated by detecting total amino acids or a certain kind of amino acid content in enzymolysis liquid.

本方法是利用碱性蛋白酶水解大分子胶原蛋白生成小分子多肽的同时，酶解产物里游离氨基酸含量逐渐增加，其增加的量与水解度大小呈正相关，因此，通过检测酶解液中氨基酸总量或某一种氨基酸含量可计算出水解度的大小。

This investigation of the mechanism of premixing alum-rosin size for neutral-alkaline papermaking process focused on the mixture solution charge and particle size distribution.

中碱性造纸过程中松香明矾预混和过程的研究主要集中在混和液的电荷及粒度分布。

Some new processes and technologies for electronics finishing were introduced, such as wafer plating, electrochemical mechanical polishing, microelectro-mechanical system plating, copper plating using insoluble anode, platinized niobium electrode, lead and cadmium free eleclroless nickel, recycling of alkaline etching solution and reclaiming system of copper.

介绍了电子电镀中的若干新工艺新技术，如芯片电镀、电化学机械研磨、微机电系统电镀、不溶性阳极电镀铜、镀铂铌电极以及无铅无镉中磷光亮化学镀镍、碱性蚀刻液再生和铜回收系统等。

The chelating resin contaning sulfur and nitrogen was firstly used to adsorb gold and silver in alkaine cyanide solution and gold ore cyanide leaching solution.

以含硫氮的螯合树脂为吸附材料，首次将其应用于碱性氰化溶液及金矿浸出液中金、银的分离与富集。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。