碳酸

The titration of the sodium hydrogen carbonate content in medicinal sodium bicarbonate tablet was compared with microburette under syringe control made on our own with conventional burette.

药用小苏打片中NaHCO3的微型滴定分析杨左海（咸宁医学院化学教研室湖北437100关键词小苏打片碳酸氢钠微型滴定法常规滴定法中图分类号O655.22小苏打片为NaHCO3加淀粉等压制而成，用于碱化尿液及酸血症，也可用于胃酸过多。

Bis-imidazoline was prepared from triethylene tetraamine and N,N-dimethylformamide dimethyl acetal at 85℃ for 2 h with toluene as solvent, with a yield of 90.4%. The reaction of bis-imidazoline with 1,2-dibromoethane and potassium carbonate in acetonitrile provided with a monobromide salt yield of 78.7%. Hydrolysis of monobromide salt under aqueous causic solution formed 1,4,7,10-tetraazzcyclododecane in a 74.2% yield.

用甲苯作溶剂，使三乙烯四胺和N，N-二甲基甲酰胺二甲基缩醛在85℃反应2 h，得到中间体双咪唑啉，产率90.4%，在乙腈溶剂中，碳酸钾存在下，双咪唑啉和1，2-二溴乙烷进行扩环反应，得到环状中间体一溴盐，产率78.7%，一溴盐经碱性水解2 h，得到1，4，7，10-四氮杂十二烷，产率74.2%。

The discussions which the study investigated were chicken and pork meat processing for elders via different tender mode. In this study, we want to evaluate the nutritions of elders and focus on animal protein. The experiment was injected marination with CaCl2, NaHCO3 and enzyme on pork and chicken meat quality traits. Treatment on the meat was analyzed proximent quality and textural properties by response surface stepwise regression. The best tender method was discovered the elder's sensory evaluation of different tender mode and observed degradation of myoglobulin by muscle tissue slice and SDS-PAGE (10%). The function of sous-vide cooking collocated with tenderization that was evaluated by textural properties and sensory evaluation. It looks for discussion about meat processing for elders.

中文摘要本试验目的在利用市售禽畜肉为原料，针对高龄者之营养需求，分别使用氯化钙、碳酸氢钠与嫩化酵素等常见之嫩化方式对禽畜肉进行嫩化处理，搭配反应曲面法分析一般特性与物性测定，并进行高龄者品评测试以探讨不同嫩化方式之口感影响以求得不同禽畜肉之最佳嫩化处理，并以肌纤维组织切片与电泳分析观察肌肉蛋白质之分解现象，最后利用真空调理法搭配嫩化处理并分析物性测定与品评测试，评估真空调理法增进嫩化之效果，探讨禽畜肉开发为适合高龄者之加工产物模式。

He chromatographic conditions for separation and detection of organic acids and inorganic weak acids with ion exclusion chromatography and nonsuppressed conductivity detection are described in this paper.

用非抑制型电导检测的离子排斥色谱法，以对甲苯磺酸为淋洗液，研究了柠檬酸、苹果酸、抗坏血酸、乙醇酸、甲酸、乙酸、丙酸及氢氟酸和碳酸的色谱分离及定量检测条件。

From Whitmania pigra 10 compounds were isolated and structurally elucidated based on the spectral data, 9 of them were the firstly isolated from this species. They are choles-4-ene-3-one, uracil, succinic acid, hypoxanthine,xanthine, octadecanoic and 2 polyhydroxy-saturated fatty acid.

五对宽体金线蛭的化学成分进行了提取、分离、鉴定，从中分得10个化合物，其中9个为首次从该动物中分得，包括1个为甾体化合物胆甾-4-烯-3-酮、2个多羟基脂肪酸、琥珀酸、尿嘧啶、黄嘌呤、次黄嘌呤、脲苷、十八碳酸等。

To investigate a new method of preparing the PCHA bone cement, and to test its physicochemical properties, and to evaluate its degrading, osteogenous ability and compressive strength.

目的 探讨原位固化制备多孔生物材料的新方法；制备多孔碳酸化羟基磷灰石骨水泥；完成PCHA骨水泥的理化性能检测；验证PCHA的降解性能、成骨活性和强度变化。

The effects of dimethyl carbonate as an oxygenate additive in diesel fuel on fuel characteristics,engine performances and emissions are studied.

研究了用碳酸二甲酯作为含氧燃料添加剂对燃料性质及柴油机性能和排放的影响。

Dimethyl carbonate; Oxygenate additive ; Performance and emission ; Diesel engine

碳酸二甲酯；含氧添加剂；性能与排放；柴油机

Synthesis of di carbonate using bis carbonate and paracresol was a new approach and technology.

研究了三光气与邻甲酚反应合成碳酸邻甲酚酯的新方法，并对酚钠盐浓度、温度、三光气用量等因素的考察。

We then evaluated the hypercapnia-induced changes in pial arteriolardiameter in these two groups using the closed cranial windowpreparation.

我们以封闭颅骨窗技术评估二组兔的软膜小动脉直径在高碳酸血症情况下的变化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。