Powdered soybean phospholipid was extracted from fresh hydrated oil footings with acetone extraction method.
采用丙酮萃取法从新鲜水化大豆油脚中提取粉末大豆磷脂。
Objective:To optmize the acetone extraction processing for bitterness such as naringin, limonin and nornilin in Guanxi pomelo.
目的：探讨琯溪蜜柚中主要苦味物（柚皮苷、柠碱和诺米林）的丙酮提取最佳工艺条件。
Organic phosphorus by acetone extraction, gel column chromatography purification, HP-5 silica capillary column chromatography, flame-ray detector.
有机磷经丙酮提取，凝胶层析柱净化，HP - 5石英毛细管色谱柱分离，火焰光检测器检测。
The process includes hydrochloric acid pretreatment, acetone extraction, hydrolysis of astaxanthin esters by catalysis of basic ion exchange resin, and adsorption separation.
该工艺包括粗色素油的提取，虾青素酯的水解和虾青素粗品的纯化。
The result shows that, on over 2.5 times content of Daidzin in materials can be arrived with the hybrid extraction of acetone and ethyl acetate.
结果表明，丙酮和乙酸乙酯的组合萃取可以将原料中大豆黄苷的含量提高2 .5倍以上。
Therefore, it is possible to use the cheap solvents (mixture of methanol and water) instead of the expensive hexane and acetone when the Accelerated Solvent Extraction method is employed.
这表明采用加速溶剂提取技术，可用价格较低的甲醇取代昂贵的正己烷和丙酮。
The procedure was described, including extraction by acetone and dichloromethane, cleaning up by passing through a column made up of neutral alumina and active carbon, determination by GC with NPD.
样本用丙酮提取，加二氯甲烷萃取，通过中性氧化铝和活性炭混合柱层析净化，然后上气相色谱用NPD检测。
METHOD Under the same conditions of microwave power and extraction time, methanol, alcohol, toluene, acetone and hexamethylene were used as the extractant to carry out intermittent extraction.
方法在微波功率和萃取时间一定的条件下，分别选用有机溶剂甲醇、乙醇、甲苯、丙酮及环己烷为提取剂，进行间歇性提取。
METHODS:Based on the extraction rate of chlorophyll, acetone method was compared with alcohol method and the preparing factors of acetone method was optimized by orthogonal design.
方法：以叶绿素提取率为指标，对脱镁叶绿酸制备的乙醇法和丙酮法工艺进行比较，用正交试验法对丙酮法 的工艺条件进行优化。
The effect of four factors, reaction time, solvent-to-solid ratio, acid-to-coal ratio and the water content in extraction mixture, were studied on the extraction rate of acetone-sulfuric acid method.
研究反应时间、液固比、酸煤比、提取液含水量四个因素对硫酸丙酮法提取效果的影响。
Methods Hydrochloric acid (HCL) decalcification method and TCA-acetone precipitation method were separately used for bone protein extraction. The efficiencies of these two methods were compared.
方法 采用盐酸脱钙法和三氯醋酸-丙酮沉淀法，分别用于骨组织蛋白的提取，并对两种方法的提取效率进行对比。
Methods Hydrochloric acid (HCL) decalcification method and TCA-acetone precipitation method were separately used for bone protein extraction. The efficiencies of these two methods were compared.
方法 采用盐酸脱钙法和三氯醋酸-丙酮沉淀法，分别用于骨组织蛋白的提取，并对两种方法的提取效率进行对比。
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