乙酸的

The synthetic procedure consists of three steps: the preparation of magnetic silica microbeads by polymer templating method; coupling of iminodiacetic acid with a bifunctional silane agent 3-glycidoxypro-pyltrimethoxysilane; charging the magnetic support with Cu(superscript 2+) With bovine serum albumin as a model compound, the adsorption behavior of protein on the magnetic matrix was studied.

采用模板法制备的单分散磁性硅胶微球，经过表面修饰偶联上亚氨基二乙酸，与过渡金属离子Cu(上标 2+)螯合，制成一种新型的磁性固定化金属亲和纯化载体。

Plant volatiles as allyl isothiocyanate , Z-3-hexen-1-ol , and Z-3-hexenyl acetate can attract DBM effectively and they have enhanced effect on captures of sex lure.

同时研究了植物挥发物异硫氰酸丙烯酯、青叶醇（Z-3-hexen-1-ol）、乙酸顺-3-己烯酯（Z-3-hexenyl acetate）对小菜蛾的诱捕作用及对性信息素诱捕作用的影响。

Formic acid, hexyl ester and Z-3-Hexen-1-ol were preliminarily confirmed to be the important substances for attracting woolly apple aphid, but 4-methyl-1, 3-pentadiene and Z-3-hexen-1-ol, acetate were not.

初步确定，E-3-己烯－1-醇、甲酸己酯可能是对苹果绵蚜有较强引诱作用的重要物质；4-甲基－1，3-戊二烯、乙酸叶醇酯不是引诱苹果绵蚜的物质。

The biogenic amines in test samples were extracted by 10% trichloroacetic acid and then derived with benzoyl chloride. The HPLC analysis for the samples were conducted as the following condition: mobile phase was a gradient elution program of methanol and water, the flow rate was 0.8 mL/min.

用10%的三氯乙酸提取样品中的生物胺，采用苯甲酰氯衍生处理后，以甲醇/水为流动相，进行梯度洗脱，流速0.8 mL/min，紫外检测器波长为254 nm。

The phosphorus release/COD consumption in the end of anaerobic phase were 0.35 and 0.27 when acetate and propionate were used as the carbon source, respectively.

结果表明，在采用乙酸作为碳源时，厌氧结束放磷和消耗COD的比值为0.35，生成的PHA中以PHB为主，占92.6%，PHV只占到7.4%，没有PH2MV生成。

In-situ synthesis process was used to prepare copper nanoparticles and coppernanoparticles-polyethylene glycol oil solution by reduction of copper acetate by glycol in polyethylene glycol containing amido ligand as dispersant.

采用原位合成法以聚乙二醇400作为反应介质，以氢氧化钠和氨基配体作为分散剂，用乙二醇还原六水合乙酸铜制备出纳米Cu粉和纳米Cu聚乙二醇溶液，用X射线衍射仪和透射电子显微镜表征其结构，在四球摩擦磨损试验机上评价了含不同质量分数纳米铜粉的聚乙二醇溶液的摩擦磨损性能，并与分散剂进行对比。

It is desirable,the control of boll shedding in cotton plant,to clear up this problem in order to devise means for.

应用氯化铁-硫酸试剂的显色法和 IAA 氧化酶法，证明了吲乙酸是棉铃里的一种内源激素。

Three extraction methods including hot water extraction, pectinase enzymolysis, and microwave extraction were compared and their effects on red date wine quality were analyzed.

结果表明，90℃热水浸提，浸提液发酵酒颜色呈枣红色，杂油醇含量最高，有浓郁枣香，但苦味重；果胶酶酶解浸提，浸提液还原糖含量最高，利于发酵，但发酵酒的甲醇含量过高；微波强化浸提，浸提时间和发酵时间最短，所得枣酒的乙酸乙酯含量最高，且有特殊香味。

The dyes were extracted from textiles composed of natural or chemical fibers by methanol under ultrasounication, and then eluted with gradient by acetonitrile and 5 mmol/L ammonium acetate from an RP-C18 column with two segments in effluents. The first effluents accommodated Acid Red 26, Direct Blue 6, Direct Black 38 and Direct Red 28 with negative ionization mode, while the second accommodated Basic Red 9, Basic Violet 14, Disperse Blue 1, Disperse Orange 11 and Disperse Yellow 3 with positive ionization mode. Thus the investigated compounds could be identified simultaneously with single-run analysis no matter which type of the fibre the sample was and no matter which category of the dye the analyte was.

用甲醇超声同时提取天然纤维和化学纤维上的染料，以5 mmol/L乙酸铵和乙腈为流动相在C18柱上于前段洗脱酸性红26、直接蓝6、直接黑38和直接红28（采用电喷雾质谱负离子模式检测），于后段洗脱碱性红9、碱性紫14、分散蓝1、分散橙11和分散黄3（采用电喷雾质谱正离子模式检测），实现了对不同种类纤维织品中分属4类性质不同染料的一次提取和一次分析检测。

The direct discharge of yellow water would not only cause environmental pollution but also produce great waste.

老窖黄水含有大量经驯化的己酸菌、乳酸菌、乙酸菌、丁酸菌等有益微生物及产香的前驱物质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。