查询词典 sulfate

The analytical methods to determine COD in chemical wastewater by using silver nitrate in place of mercury sulfate to mask chloride ion were studied; Extracting silver chloride precipitation from the determined COD waste liquid, the feasibility of preparing silver sulfate catalyst by the direct reaction of silver chloride and concentrated sulfuric acid was analyzed.

研究了用硝酸银代替硫酸汞掩蔽氯离子测定化工废水中COD的分析方法；试验了从COD测定废液中提取氯化银沉淀，直接用氯化银与浓硫酸反应制备硫酸银催化剂的可行性。

Inorganic matter: sodium perborate, potassium sulphate, magnesium sulfate, sodium sulfate, potassium nitrate, calcined soda, salt, sodium chlorate.

无机物：过硼酸钠、硫酸钾、硫酸镁、硫酸钠、硝酸钾、纯碱、精盐、氯酸钠、元明粉。

In a system consisting of 20% PEG 400 and 12% magnesium sulfate, the partition coefficient of PGA was less than 0.01, PGA almost completely partitioned into the magnesium sulfate-rich bottom phase. Meanwhile, the partition coefficient of cephalexin was 6.7, the partition coefficients of phenylglycine methyl ester and 7-ADCA were 1.5 and 1.2, respectively.

通过考察头孢氨苄、苯甘氨酸甲酯和7-氨基脱乙酰氧基头孢烷酸(7-ADCA)在ATPS中的分配行为建立了一个含20%PEG 400和12%硫酸镁的ATPS，在此体系中头孢氨苄的分配系数为6.7，苯甘氨酸甲酯的分配系数为1.5，7-ADCA的分配系数为1.2，且青霉素酰化酶的分配系数小於0.01。

The maximal fluorescence intensity of the ring is proportional to the content of quinidine sulfate.An SOR method for the determination of quinidine sulfate was established in the range of 0.2 ~1.4×10~(-12) mol,and the limit of detection(3σ) was 2.6×10~(-14)mol.

研究表明，只要满足液滴与表面的接触角不为零、液滴与表面的接触线被固定、溶剂能挥发等3个条件，固载表面上液滴中的溶质将在固载表面的接触线上聚集而形成一个自组装成环。

By analyzing sulfate corroding mechanism, the results show that composite additive can improve the concrete repellence in salt region to sulfate environment effectively.

通过硫酸盐侵蚀机理分析说明：加入辅助胶凝材料能够有效的提高盐渍土地区混凝土抵抗硫酸盐侵蚀的能力。

The concentration percentages of GSH and polypeptides were approximately by 108, 208 and 329% under sodium sulfate, 113, 194 and 401% under sodium nitrate, and 174, 408 and 472% under equal mixtures of sodium sulfate and nitrate as compared with distilled water cultured, respectively.

其结果显示在阳光和水分充足的情况下，增加硫原子及氮原子的来源可增加 GSH在植物体茎部组织中的含量，如此便可与正常植物相比较，进一步了解环境污染的程度。

A new method for the determination of sulfate ion in sodium or potassium sulfate is proposed.

对可溶性硫酸钠中硫酸根含量的测定提出一种新方法，实际应用证明该法具有准确度高、重现性好、简便快速的特点。

Sodium dodecyl sulfate is the type representative of the anion sulfate genera SDS. It is useful for comprehensive.

十二烷基硫酸钠是阴离子硫酸酯类表面活性剂的典型代表，具有广泛的用途。

The speed of attack of sodium sulfate is faster than the one of attack of magnesium sulfate under various factors.

在各种影响因素下，硫酸钠侵蚀破坏的速度比硫酸镁侵蚀快。

Then,the mother liquor was used in solarization salt-making,and obataned CaSO4·2H2O was used in production of calcium sulfate whisker through dissolving,heating,filtrating,and cooling crystallization transformation process.It has provided a new technical route for comprehensive utilization of sodium sulfate bittern resource.

处理后的清液可用于日晒制盐， CaSO4·2H2O 沉淀经溶解、加热、过滤、冷却结晶转化可生产硫酸钙晶须，为硫酸钠型卤水资源的综合利用提供了一条新的技术路线。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失