查询词典 sulfate

The purity of SAM product was higher than 95％, and the overall recovery of SAM sulfate and SAM double salt of sulfate and p-tosylate were 60％ and 50％, respectively.

通过筛选，获得了对SAM有较好选择性离子交换能力、较易洗脱和再生的争光D113弱酸型阳离子树脂，研究了温度、pH等对SAM离子交换的影响，根据SAM在弱酸阳离子树脂D113上的等温交换平衡行为表现出较强的可逆性，考虑到交换基的弱电解质性质以及结合Donan膜平衡理论，建立了考虑pH影响的可逆离子交换平衡模型，该模型可以较好地描述SAM平衡浓度、pH对离子交换平衡的影响；通过对动态离子交换过程的研究，得到了SAM在D113树脂内的有效扩散系数的数量级为1.0E-9cm〓/s～1.0E-8cm〓/s。

" Alum Inorganic compound, any of a class of hydrated double salt s, usually consisting of aluminum sulfate, water of hydration (an essential part of the crystal makeup), and the sulfate of another element."

明矾：一种无机化合物。一组通常由硫酸铝、水合水和其它元素的硫酸盐组成的水合复盐的总称。

Then SAM precipitation was carried out by picric acid and SAM precipitated is higher than 90％. After butanone extraction, acetone precipitation and SAM sulfate or SAM double salt of sulfate and p-tosylate formation, the stable SAM salt was obtained.

结果表明，苦味酸是一种选择性较好的沉淀剂，沉淀步骤得率在90％以上，制备SAM的硫酸盐的总得率在60％以上，而硫酸对甲苯磺酸双盐的得率在50％以上，产物的纯度达到了95％以上，已经达到了国外同类产品的质量指标。

2Examine the chromatograms of the solutions to be examined in the assay. The two principal peaks in the chromatogram obtained with the test solution are similar in retention time to the principal peak in the chromatogram obtained with reference solutions of Estrone Sodium Sulfate and Equilin Sodium Sulfate.

在含量测定项下记录的色谱图中，供试品溶液两个主峰的保留时间应分别与对照品中雌酮硫酸钠和马烯雌酮硫酸钠峰的保留时间一致。

The white slurry was obtained by means that the mixed solution of ferrous sulfate and ammonium sulfate (the mole ratio was 1.15∶1) was added into 0.200 mol·L~-1 sodium ferrocyanide solution, and the reacting temperature had been at 80℃ for 10 mins.

按照硫酸亚铁与亚铁氰化钠物质的量比为1.15：1，将硫酸亚铁和硫酸铵混合溶液加入浓度为0.200 mol·L-1的亚铁氰化钠溶液中，80℃下反应10 min得到白浆。

The PSAF floccule is produced with sulfate aluminum, sulfate iron and water glass as the main material.

以硫酸铝、硫酸铁、水玻璃为主要原料制备了聚合硅酸铝铁絮凝剂。

Therefore, ammonium sulfate and PDMDAAC are selected as the dispersion medium and dispersant respectively, in order to obtain products with preferable fluidness. Studies show that, for ammonium sulfate, the optimum dosage is 27%-29%, and PDMDAAC is 10%-18%.

故选择硫酸铵与PDMDAAC分别作为盐水介质中CPAM分散聚合的分散介质与分散剂，并确定了硫酸铵最佳用量为聚合体系质量的27%~29%，PDMDAAC最佳用量为单体质量的10%~18%，该条件下制得的产品具有较好的流动性。

Monoammonium phosphate,diammonium phosphate,compound fertilizer,superphosphate,sulfuric acid,ammonium sulfate,sodium sulfate,sodium fluosilicate and so on.

磷酸一铵，磷酸二铵，复混肥料，过磷酸钙，硫酸，硫酸铵，硫酸钠，氟硅酸钠等。

The results show that:(1): to adopt the experimental method may not be used for industrial seaweed extract mannitol, iodine and the remaining scrap material extracted fucose sulfate polysaccharide;(2) This method can be used for pretreatment of industrial kelp in the water more than fucose sulfate extraction of sugar.

结果表明：（1）：采取本实验方法不可用于工业海带提取甘露醇、碘所剩余的废弃料提取岩藻多糖硫酸酯；（2）本实验方法可用于工业海带预处理水中岩藻多糖硫酸酯的提取。

The fucose sulfate polysaccharide are mostly based on fresh or dry zone as the raw material extraction, and the industry for the extraction of mannitol, iodine and the remaining waste material is not commonly used in the fucose sulfate polysaccharide extraction.

目前，岩藻多糖硫酸酯大多是以新鲜或干带为原料提取，而工业用于提取甘露醇、碘所剩余的废弃料并不常用于岩藻多糖硫酸酯的提取。

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