钠

Pillared montmorillonite, as a representative of Sandwich like pillared interlayered clays ,caught many scientist's attention not only because of its special structure of two-dimensional sheets but also its excellent activity of catalysis and adsorption. It is well documented that the method to prepare PILM, ion-exchanging, needed a long periods and was affected by many factors, and that the product had low thermal stability especially hydro-thermal stability which was the primary obstruction of its using in large-scale production. At the same time, PILM was well documented prepared with Na-montmorillonite, while there were a few documents about PILM prepared with Ca-montmorillonite. The large cost of remodel of Ca-montmorillonite to Na-montmorillonite was another obstacle of the application of PILM, while Ca-montmorillonite was widely distributed in nature, as a result, to prepare PILM with Ca-montmorillonite has practical significance. What's more, PILM was mainly studied as a catalyst in oil refinin g process till now, but rarely documented in other catalysis reactions, especially in coal liquification filed which also needed high activity catalyst.

以柱撑蒙脱石为代表的具有"三明治"结构的柱撑粘土矿物因其特殊的二维孔道结构和优良的催化和吸附性能近年来成为国内外广泛关注和研究的热点，但是目前国内外大量报道的PILM制备大多采用离子交换法，生产周期很长，影响因素很多，并且产物热稳定性不够高，特别是水热稳定性较差，这是其不能在实际中大规模生产和应用的主要障碍，因此制备一种高稳定性的PILM意义非常；文献中大量报道的都是钠基蒙脱石合成的柱撑粘土矿物，传统的离子交换法必须将钙基蒙脱石钠化改型，其成本相当高，而自然界中大量存在的却是钙基蒙脱石，直接用钙基蒙脱石合成柱撑粘土矿物有很现实的意义，但目前这方面的报道却很少见；另外，迄今为止，PILM作为催化剂的研究领域主要在石油的炼制中应用，而在煤炭的液化中却鲜有报道，如果能在煤炭转化领域应用这一成果，其影响也将是相当大的。

In the experiment, it proved that the repetitiveness、 reproducibility、 comparability of the 2.0%(NH_4)_ 2CO_3 was better than the original method through repeated experiments. The result of it was equal to the sum of water soluble sodium and the exchangeable sodium and it had better precision and accuracy. The 2.0%(NH_4)_2CO_3 could be chosen as the probational measurement of total alkality.

在本试验中，通过多批次的重复试验证明，2.0%(NH_4)_2CO_3法的重复性、再现性、可比性良好，测定结果稳定可靠，在数值上等于水溶性钠与交换性钠的总和，而且有较好的精密度和准确度，可以作为测定总碱度的试用方法。

Acetone, and water?2?propanol were obtained by the laser method and fitted by the exponential model. Finally, the crystallization metastable zone

异丙醇混合溶剂中的溶解度数据，采用指数模型对溶解度数据进行关联；最后测定头孢唑林钠在水及水与异丙醇混合溶剂中的冷却结晶介稳区数据，为头孢唑林钠的工业生产提供热力学依据。

Those three markers are serum bilirubin, serum creatinine, and prothrombin time.

使用了2种不同的统计学方法分析了等待时间未3～6月患者的血清钠、低钠血症和MELD预测死亡的效能。

The thermal calculation and the test have proved that because of short heat introduced into absorption tower by ammonia behind bubble capammonia still towers the quality of yellow sodium prussiate is influenced in the production process system of yellow sodium prussiate.

采用热量计算和试验证明，在黄血盐钠生产工艺系统中，由于泡罩蒸氨塔后氨气带入吸收塔的热量不足，在运行过程中影响了黄血盐钠的质量。

The influenced of sodium hexame taphospha on the dispersion of nano-ZnO in glaze,and its effects on chinaware products were investigated,in which sedimentation test,granularity analysis,rheology of glaze,reflet of chinaware and sintering temperature were used to characterize the aqueous and glaze systems with nano-ZnO and chinaware products.

研究了六偏磷酸钠对纳米ZnO在水中和陶瓷釉料中的分散性以及纳米ZnO对陶瓷成品性能的影响。采用沉降实验、粒度分析、釉料流变性、陶瓷成品光泽度、烧成温度测试手段，对含纳米ZnO的水溶液、釉料和陶瓷成品进行表征。结果表明，在实验条件下，纳米ZnO在水中最佳分散条件为：0.5%六偏磷酸钠，3.0%纳米ZnO，pH为9。

The turbidity change characteristics of sodium resinate solution was studied at the existence of calcium ions. The effect of ACS, a kind of heavy metal ion complexing reagent at different temperature, pH, dosage of ACS, and adding order on the solution turbidity was investigated in this paper.

研究了树脂酸钠在Ca(上标 2+)存在下的溶液浊度变化特点，分析了不同反应温度、溶液的pH、ACS用量及添加顺序等工艺条件对多价金属离子络合剂ACS控制树脂酸钠的影响。

The toxicity of sodium selenite was obviously higher than that of sodium selenate.

亚硒酸钠的毒害作用明显强于硒酸钠，对黑斑蛙蝌蚪红细胞均存在较强的细胞遗传毒性。

The micronucleus rate of erythrocytes increased firstly and then decreased with the rising of sodium selenate or sodium selenite mass concentration.

采用静态水质接触染毒法，研究硒酸钠和亚硒酸钠对黑斑蛙蝌蚪红细胞微核及核异常的影响。

Sodium selenite can induce the apoptosis of SGC7901 cells, which is associated with the blockage of cell cycle.

亚硒酸钠能够诱导SGC7901细胞凋亡，亚硒酸钠诱导SGC7901细胞凋亡与细胞周期阻滞密切相关。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。