含酸的

In this research, two novel compounds in which alkylenedithiomethylene Malonic acid act as the main coordination agents and the compounds containing N atom (such as pyridine, Phenanthroline Ethanediamine and 4,4'-Bipyridinyl) act as the associating coordination agents have been synthesized by the means of solution and solid-liquid diffusing reactions. 9 coordination complexes and polymers have been designed and synthesized in which the transition metals Cu and Zn acted as the centre ions. These compounds have been characterized by X-ray single crystal diffraction analysis, and some properties of them have been tested and analyzed.

本论文设计合成了两种结构新颖的含有二硫缩烯酮结构的丙二酸类化合物，以此为主要配体，以含氮化合物(吡啶、邻菲罗啉、乙二胺和4，4'-联吡啶)为辅助配体，采用常规溶液合成和固-液相扩散等方法，设计合成了9个过渡金属Cu和Zn离子配合物和配位聚合物，采用单晶X-射线衍射等技术对晶体结构表征，并对其部分性质进行了测试和分析。

ObjectiveTo establish a high performance liquid chromatographic method for the determination of taurine in beverages.Methods:After derivatization with FMOC,tarine in beverages was separated and quantitied by HPLC.

牛磺酸(2-氨基乙磺酸)是广泛存在于动物和人体内的一种含硫氨基酸，具有保护心血管系统、促进脂肪乳化、改善视功能和抗氧化等生理功能[1]，在预防医学领域具有重要的应用前景。

The fourth part: The influence of various active groups on the fluorescence performance of aresenoxylphenylazo rhodanine ramifications was studied systematically to seek the fluorescence reagents of good analysis performance.

第四部分：系统研究了各种活性基团对含胂酸基偶氮若丹宁衍生物荧光性能的影响，以寻求具有优良分析性能的荧光试剂。

According to this, a series of new methods to determine trace cobalt, copper, antimony, cadmium, aluminum and iron was established by taking advantage of the characteristic of metal ions with intense catalysis effect on hydrogen peroxide oxygenating rhodanine.

基于此，利用痕量金属离子对过氧化氢氧化若丹宁具有强烈催化作用的性质，建立了一系列利用新型含羧酸基偶氮若丹宁衍生物催化荧光法测定痕量钴、铜、锑、镉、铝和铁的新方法。

Salicornia europaea is a dicot halophyte,which could grow in marsh with salinities greater than 3.5%and the major osmotica in its fleshy stems was Na~+ and g lycine betaine.

盐角草是一种双子叶盐生植物，可在含盐3.5%以上的湿地正常生长，其体内主要的渗透调节物质是Na~+和甘氨酸甜菜碱。

The adsorbent is cheap and can be reused after retreacted with steam ,so it is possible to decolorise on the solution of sodium sebacate by this new adsorbent.

同时，在癸二酸生产中排放大量的含酚废水，若不经处理直接排放，不仅会损失大量的原料甲酚，而且会严重污染环境。

The immigrating environment of three toxic elements, thallium, cadmium and lead, were investigated experimentally and simulatively.

在25～55℃低温条件下研究了苹果酸对广东云浮含铊黄铁矿的准动态淋滤，模拟考察了Tl、Cd和Pb三种有毒元素随矿山开采和环境介质因素作用而进入环境的情况。

The result indicted that the RSD of precision and reproducibility were less than 3%,conforms to the related regulation;In conclusion that this method is accurate,repeatable and provides a scientific basis for controlling the quality of Pinellia ternate.

结果表明，该方法精密度和重复性RSD均小于3％，符合有关规定；半夏清制和姜制后，其所含精氨酸与半夏生品相比均有不同程度的下降，而且指纹图谱的主峰数目也有所变化。

Its molecular structure js beta-methyl indole-3-propionic acid, containing no thiopyran ring, which is a characteristic moiety of Chuanxinmycin.

脱硫创新霉素是创新霉素经过脱硫反应生成的一个创新霉素衍生物，其分子结构为β-甲基吲哚丙酸，不含创新霉素所特有的噻喃环。

Male weanling Wistar rats were fed with either a basal selenium deficient diet (a Torula yeast based semisynthetic diet, containing Se 0.01 mg/kg) or a selenium sufficient diet supplemented with Se as Na\-2SeO\-3 (containing Se 0.5mg/kg). Rats were killed after different weeks(0,1,2,4,8,12,15,17,19,20 and 24 respectively).

以低硒酵母配制的低硒基础饲料(含硒量为0.01mg/kg)和在此基础上加亚硒酸钠配成硒水平为0.50mg/kg的足硒饲料来喂养雄性Wistar断乳大鼠。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新