查询词典 ethyl acetate

ObjectiveTo investigate the antiarrhythmic effect of ethyl acetate extract of Radix Ginger.

目的探讨干姜醋酸乙酯提取物的抗心律失常作用。

Our lycopene comes from a blend of supercritically extracted lycopene-rich herbals and a proprietary tomato extract free of ethyl acetate.

我们的番茄红素来自混合supercritically提取番茄红素丰富的草药和专有的番茄提取物免费乙酸乙酯。

Ethyl acetate ; yellow iron oxide pigments ; surface modification

乙酸乙酯；铁黄颜料；表面改性

Adopting 30-second nitrocellulose as the main sticky material, using ethyl acetate, ketone, alcohol and aromatic hydrocarbon as a mixture solvent and modifying nitrocellulose with dimethyl phthalate plasticizer,the prescription of staple adhesive was designed with orthogonal experimental methodology.

选用30s 硝酸纤维素作为主要成膜物质，醋酸酯、酮、醇和芳烃作为组合溶剂，邻苯二甲酸酯类复合增塑剂对硝化棉进行改性，采用正交试验方法确定胶黏剂的配方。

Was extracted with 95% ethanol at first,and then the ethanolic extract was separated with petroleum ether, ethyl acetate, n-Butyl alcohol and methanol in turn to get four fractions from small to large in polarity. The MTT experiment was made for active screening.

方法青天葵部位提取物的制备主要采用溶剂法，青天葵全草先用95%的乙醇提取，得到的提取物进一步用石油醚、醋酸乙酯、正丁醇、甲醇依次提取，得到极性由小到大的4个提取部位。

And the Honeysuckle's leaves extracts have hydroxy free radical scavenging effects as well. The re-extract by ethyl acetate has obviously scavenging activity when its concentration is 1 mg/mL.

抗氧化实验结果表明，金银花叶乙醇提取物具有一定的抗羟自由基氧化活性，其中乙酸乙酯萃取物在1mg/mL的低浓度下就显示出了较好的效果。

The tea drinker was extracted with ethyl acetate, and detected with FPD and LCD, the organochlorines and pyrethroids cleaned up with LC-Florisil SPE column.

试样茶汤用乙酸乙酯萃取，其中有机氯和菊酯类农药采用LC-Florisil SPE小柱净化，采用GC-FPD和GC-ECD检测。

The results showed when the weight ratio of linseed oil to rosin was less than 1.2, the product with following characters could be prepared i.e. molecular weight (averageM 6000~10000, PDI less than 4, n-heptane tolerance in the range of 5~20mL/2g, softening point more than 110℃ and good solubility in mineral oil, vegetable oil, aromatic hydrocarbon, MEK and ethyl acetate and so on. The product might be a new polymer for manufacturing rotary printing inks.

实验表明：m：m＜1.2时，所得产品分子量(平均值M6000~10000，分子量分布范围，庚烷容纳度在5~20mL/2g，软化点＞110℃，可溶于矿物油、植物油、芳香烃、丁酮和乙酸乙酯等溶剂中，是轮转油墨用的一种新型高分子聚合物。

We select the polyamide resins, the polyurethane resin mixed with isopropyl alcohol and ethyl acetate component solvent, form the plastic printing ink of non-benzene solvent, use the IGT printability meter, the transmission density meter, the magnetic force mixer and many kinds of measuring instrument, measure the sample printing ink printed on the commonly used package printing film. The performance, the printability and the color characteristic of non-benzene solvent ink for plastic film printing were researched with the development printing ink sample.

结合与之相适应的树脂、颜料和助剂，开发研制了以聚酰胺树脂、聚氨酯树脂与醇、酯混合溶剂形成油墨连结料的无苯型塑料凹印油墨，并结合塑料凹印工艺要求，采用IGT印刷适性仪、透射密度仪、磁力搅拌器等多种测试仪器，通过对各种包装常用承印材料及样品油墨的测试，探讨了研制油墨样品的性能、印刷适性和颜色特性。

The R f value of the glucosamine sulfate was 0.36 measured by paper chromatography with the solvent system of pyridine, ethyl acetate, water and glacial acetic acid (5∶5∶3∶1 in volume).

经纸层析鉴定，以吡啶、乙酸乙酯、水和冰醋酸按体积比 5∶5∶3∶1组成的溶剂系统进行展层，氨基葡萄糖硫酸盐的Rf 值为 0 。36。

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。