碱液

The polymeric resin NDA-8 was employed to treat the industrial wastewater from hydrogenated deoxidization process in tolylene diisocyanate production and good performance of adsorption and desorption was shown.

经树脂吸附处理，废水中主要污染物2，4-二氨基甲苯和2，6-二氨基甲苯均得到完全去除，COD由6 300mg/L降为150mg/L以下，达到国家二级排放标准，采用稀盐酸可实现树脂的完全再生，高浓度脱附液经调碱和结晶，可回收2，4-二氨基甲苯和2，6-二氨基甲苯

Urine samples were first precipitated with trichloroacetic acid, then centrifuged at 12000 r/min for 15 min at 4 ℃, and finally added with NaOH to neutralize the supernatant.

尿标本经三氯乙酸处理，在4 ℃下，以12000 r/min的速率离心15 min，上清液用碱中和后，取30 μL直接进样。

A method of dilute alkali to extract chondroitin sulfate from Ray Cartilage was adopted, the alkali extraction and enzyme unbinding conditions were observed.

结果：最佳提取条件的碱浓度是4%，于室温下提取18h；酶解的最佳工艺为：提取液按4×10^(-4)：1比例加胰酶，于50℃左右保温酶解2h。

The characterization of crude extractions containing antifungal substances indicated that the antifungal activity was thermostable, tolerant to basic pH, untolerant to acid pH, unsensible to proteinase K and pepsin.

对其抗菌物质粗提液生化性质分析表明，该抗菌物质的抑菌性质对热稳定，耐碱不耐酸，对蛋白酶K和胃蛋白酶均不敏感。

The extraction procedure of crude protein from Vallisneria spiralis L. was to extract the crude protein with sodium hydroxide followed by precipitation with acid. Factors influencing the extraction rate were studied according to the experiments of odd factorsNaOH concentration,Vallisneria spiralis L.

采用碱提酸沉法从苦草中提取粗蛋白，通过单因子试验（单因素：NaOH溶液浓度、固液比、提取温度、提取时间）和L9（34）正交试验，对影响粗蛋白的提取工艺进行了研究；同时比较了不同pH值对粗蛋白沉淀的影响。

When the influent pH was controlled between 7.5 and 8.0, the maximum sulfide and nitrate removal loading rate were 2.96 kg·(m3·d)-1 and 0.47 kg·(m3·d)-1, respectively.The basifying reaction and remnant sulfide led to increasing pH values that were finally beyond the bacteria toleration and caused process instability at high loading rates.

控制进水pH在7.5～8.0之间，反应器的最大容积硫化物和硝酸盐去除速率分别为2.96 kg·(m3·d)-1和0.47 kg·(m3·d)-1（分别以硫元素、氮元素计），反应过程产碱及残留硫化物，均会导致反应液pH值过高（9.11±0.38），引发高负荷时工艺失稳。

The electrochemical behavior of three kinds of Schiff base brighteners (DL01, DL02, DL03) and CoSO4 in sulfate laths for electroplating of bright tin and tin-cobalt alloy coatings was investigated using linear potential sweep.

为了研究3种希夫碱光亮剂(DL01、DL02、DL03)及CoSO4在电镀时的电化学行为，采用线性电位扫描法测定了含新型添加剂的硫酸光亮镀锡、锡钴合金镀液的极化曲线。

The absorbent used is a normalized acid solution and the back-titrate is standard alkalescent solution.

因此对废气冷凝吸收液选用先以定量标准酸吸收，再用标准碱回滴的分析方法。

The biodiesel yield reached 95%. However, it was only 89.7% if the jatropha curcas oil wasn't extracted. A new technology of biodiesel production using jatropha curcas l oil as a feedstock was developed.

萃残液利用甲醇钙固体碱催化制备生物柴油，转化率从脱酸前的89.7%上升到95%，并据此提出了利用麻疯果油制备生物柴油的制备工艺。

OO from the beginning of a three-year sales of chemical raw materials, specific printing ink, printing ink, sodium hydroxide, liquid (30-50%) hydrochloric acid, electrical cleaning agents, electrical agents, detergents, bactericidal Algicide, corrosion inhibitors, scale inhibitors, polyacrylamide (cation-anion), toluene, glacial acetic acid, such as bleaching, aluminum-based industries to the production of chemical raw materials used.

从二OO三年开始化工原料的销售，具体有印刷油墨、印刷水墨、氢氧化钠、液碱（30-50%）盐酸、电器清洗剂、电器保护剂、除垢剂、杀菌灭藻剂、缓蚀剂、阻垢剂、聚丙烯酰胺、甲苯、冰醋酸等漂染、铝型才行业的生产用化工原料。

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。