乙二酸

Results showed that: there were best range of the amount of solicitation reagent,the amount of polyethylene glycol, the length of the polyoxydation ethene side chain and the best time temperature and of the esteri.

通过确定不同的引发剂用量、聚乙二醇投入量、聚氧化乙烯侧链长度以及酯化反应的温度和时间，对所合成的新型聚羧酸系外加剂的性能进行比较。

Sodium salt of ethylenediamine tetraacetic acid and glycine）.

乙二胺四醋酸和甘氨酸的钠盐。

The result of the experiment showed that the qualitative medium - speed filter paper can be used as the material of the nitrite - detecting paper: color developing reagent A containing 4 - aminobenzene sulfonamide and N - 1 naphthyl ethylenediamine hydrochloride, and mixtures of 1 : 1 naphthylamine solution and sulfanilic acid solution as color developing reagent.

实验结果表明：定性中速滤纸可以作为亚硝酸根试纸的材料；含有4-氨基苯磺酰胺和N-1-萘基乙二胺盐酸盐的显色剂A及含有1：1的α-萘胺溶液和对氨基苯磺酸溶液的显色剂B，按1：1混合后可以作为显色剂；通过应用实验表明，亚硝酸根试纸具有体积小、便于携带、检测方便、成本低廉等特点。

Firstly, we selected the catalyst for piperidine oxidation reaction, and obtained the compound catalyst of silicon tungsten molybdic acid.

首先就哌啶醇催化氧化合成TEMPO反应使用的催化剂进行筛选，得出催化效果显著的硅钨钼酸与乙二胺四乙酸复合催化剂。

Alicy aldehyde,coumaein,diethyl malonate,synthetic spicery essence,etc.

水杨醛，香豆素，丙二酸乙酯，合成香精香料等。

Monoethyl succinate is an important organic intermediate and its derivatives can be applied in many fields.

丁二酸单乙酯是一种重要的有机中间体，它的衍生物应用广泛但研究报道尚不多见。

The waves are very useful for the determination Of these compounds, for homocystine, 6-mercaptopurine and thiouracil, the detection limits are 2×10-8, 8×10-8 and 5×10-8 mol/L,respecrespectively.

处产生的阳极化波较为灵敏，其检测限为2×10－8mol／L高胱氨酸，线性范围为8×10－8～1×10－5mol／L.6－巯基嘌呤和硫尿嘧啶在乙二胺介质中与铜产生的络合物波较好，前者在－0.83V处和后者在－0.44V处的阴极波较适合于分析。它们的检测限分别为8×10－8mol／L和5×10－8mol／L，线性范围为1×10－7～1×10－5和1×10－7～2×10－5mol／L。

The porous TiO2 anatase nanometer thin films were prepared from alkoxide solutions containing polyethylene glycol by sol-gel method.

锐钛矿型多孔TiO2纳米薄膜可以从含聚乙二醇的钛酸盐溶胶前驱体中通过溶胶-凝胶法制备。

The compatibility of imidazoline sulfuric ester and antiscale HEDP was studied.

以油酸、羟乙基乙二胺和氨基磺酸为原料合成了咪唑啉硫酸酯盐两性表面活性剂，并通过红外光谱进行表征。

Azelaic acid showed a higher relative antifeeding rate or a promotion effect on eating, and the absolute antifeeding rate of its ethyl acetate solution could reach 100 percent.

壬二酸的相对拒食率有的较高，有的表现为促进取食的作用，其乙酸乙酯溶液的完全拒食虫率高达100%。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。