沉淀剂

At the same time,the influences of various factors,such as the dosage of reducing agent,the.

对制备氯化亚铜过程中还原剂用量、沉淀剂用量、反应时间、反应温度、pH对氯化亚铜收率的影响进行了研究。

MethodsBase on pharmacokinetics research of β asarone in volatile oil of Acorus tatarinowii Schott in rat serum,to compare the condition of HPLC and sample preparation.

方法在石菖薄挥发油β细辛醚在大鼠的药代动力学实例研究的基础上，对给药剂量、血样采集时间点、生物样品的贮存稳定性、蛋白沉淀剂的种类及剂量、样品提取和制备方法，以及流动相、波长、柱温等参数进行了比较。

With the quick development of technology, the use of magnesian products are more widely, specially in the fields of advanced technology, we need high quality magnesian products.

本研究就是根据我国国情以卤水为原料，以碳酸氢铵和氨水为沉淀剂生产特级轻质氧化镁的新工艺研究。

Using manganous sulfate(MnSO4) as raw material,ammonium hydrogen carbonate(NH4HCO3) as precipitating agent and sodium dodecyl sulfate as particle size controller and through the process of quick addition of MnSO4 and NH4HCO3 solutions at same time,monodisperse submicron manganous carbonate(MnCO3) spherical particles were prepared by controlling suitable reaction crystallization conditions.

以硫酸锰为锰源，碳酸氢铵为沉淀剂，十二烷基硫酸钠为粒径控制剂，采用硫酸锰和碳酸氢铵两种溶液快速同时加入的方式，通过控制合适的反应结晶条件，制备出亚微米级单分散球形碳酸锰颗粒。借助扫描电镜、X射线衍射、粒度分析仪等研究了反应结晶条件对碳酸锰粒径和形貌的影响。

To obtain large single crystal of ΔnifE Av1 suitable for X-ray diffraction, a body of studies were performed on the crystallization conditions such as kinds and concentrations of precipitants, pH value of buffer, diffusion method and protein batch.

为获得可供X-射线衍射的ΔnifE Av1的大单晶，对组成蛋白质沉淀剂的各种化合物的种类和浓度、缓冲液的pH值、结晶方法及蛋白样品的批次、浓度等结晶条件进行了大量优化研究。

To obtain large single crystal of △nifE Avl suitable for X-ray diffraction, a body of studies were performed on the crystallization conditions such as kinds and concentrations of precipitants, pH value of buffer, diffusion method and protein batch.

为获得可供X-射线衍射的△nifE Avl的大单晶，对组成蛋白质沉淀剂的各种化合物的种类和浓度、缓冲液的pH值、结晶方法及蛋白样品的批次、浓度等结晶条件进行了大量优化研究。

The proportion of GGT complexed with low density lipoproteins plus very-low density lipoproteins in total GGT in serum is determinated with ratio colorimetery,sodium phosphotungstate and MgCl2 as precipitation.26 patients with liver cancer,18 with liver cirrhosis,22 with chronic hepatitis,14 with the other malignant tumors,16 with non-hepatobiliary disease of high GGT and 50 healthy subjects have been evaluated.

本文以磷钨酸－氯化镁作沉淀剂，速率法测定血清低密度脂蛋白，极低密度脂蛋白结合的r－谷氨酰转移酶（LDL－VLDL－GGT）占总GGT的百分比。对临床26例肝癌、18例肝硬化、22例慢性肝炎、14例其他恶性肿瘤、16例GGT升高的非肝脏疾病及50例健康人进行了检测，结果表明：肝癌组明显高于其他各组，差异显著（P＜0.01）。肝脏疾病升高幅度：肝癌＞肝硬化＞慢性肝炎，且每两者间有显著差异（P＜0.01）。

From the results of XPS, ESR and coloration feature, it was inferred that N was embedded into TiO_2 powders to form interstitial and substitutional N doping,and N doped in the part of oxygen vacancy was crucial to emerge visible-light activity. Moreover, N doping played a significant role in restraining reoxidation of oxygen vacancy.

XPS、ESR测试结果和粉体的显色特性表明：N元素可以由沉淀剂直接引入到TiO_2粉体中，形成间隙型和置换型N掺杂；N占据氧空位的位置对粉体的可见光吸收特性是必要的，同时氮掺杂还可抑制氧空位的再氧化。

A method for simultaneously determining sorbic acid, benzoic acid and saccharin sodium in processed fishery product was established.

采用高效液相色谱法同时测定水产品中的山梨酸、苯甲酸、糖精钠，实验采用铁氰化钾和乙酸锌作沉淀剂，取得了良好的净化效果。

Benzoic acid, sorbic acid and saccharin sodium were determined in the same time by HPLC with UV detector.

通过加入适量沉淀剂除去样品中绝大部分蛋白质和脂肪后，用高效液相色谱法，由紫外检测器同时测定牛乳中苯甲酸、山梨酸和糖精钠。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。