This technology has the advantages of simple operation, high yield and low cost by using water as solvent which is poisonless and pollution free.
该工艺条件具有操作简单、产量高、无毒无污染、成本低等特点。
Water chestnut drege carboxymethylated product (WCDCMCS) is prepared and studied by methanol solvent method, using water chestnut drege (C6H9O4OH) as raw material under alkaline condition.
研究了以荸荠渣（C6H9O4OH）为原料，采用甲醇溶剂法，在碱性条件下制备出荸荠渣羧甲基化产品（WCDCMCS）。
Using water as extracting solvent, the extraction processing parameters of leaf protein from alfalfa were studied.
以水为提取溶剂，对热絮凝法提取苜蓿中叶蛋白的工艺参数进行优化。
Ganciclovir could be purified to more than 99.0%(HPLC) by a combination of acetone, acetic acid and water in 83.3% recovery as compared with 30% one when using water or methanol as solvent.
相比目前使用的水或甲醇溶剂纯化收率30％，发现以丙酮、乙酸、水的溶剂体系，精制更昔洛韦收率可显著提高到83.3％，高效液相色谱（HPLC）分析，产品纯度达到99.0％以上。
The resolution of DL p hydroxyphenylglycine into its D and L isomers was studied by using aromatic sulfonic acid as resolving agent and water as solvent.
以水为溶剂，取代芳磺酸为拆分剂，用诱导结晶法，经成盐、拆分、水解过程，将DL-对羟基苯甘氨酸拆分成D-对羟基苯甘氨酸。
Tea polyphenol is the major physiological active component in tea, and it is generally manufactured by liquid-liquid extraction technology, using ethyl acetate as solvent from water extract of tea.
茶多酚是茶叶中主要生理活性物质，其制造方法一般采用液-液萃取工艺，以醋酸乙酯为溶剂，从茶汤中萃取出茶多酚。
Microwave assisted extraction methods have shown many advantages: simplicity, speed, low consumption of solvent , and possibility of using water as extraction solvent.
微波萃取方法具有方便、快速、试剂消耗低、回收率高和可用水作萃取溶剂的优点。
A kind of emulsifier wax using for young plants transplant was prepared from paraffin wax, water as solvent for dilution, and triethanolamine as emulsifier.
以水作为稀释剂，三乙醇胺等几种表面活性剂为乳化剂，石蜡为原料，制备了幼苗移栽抗旱保活用乳化蜡。
Silver nanoparticles and Silver nanochains were successfully prepared by using polyethylene glycol(PEG) as solvent or PEG and water as mixed solvent.
聚乙二醇或聚乙二醇和水作溶剂，制备出银纳米颗粒和纳米级银链；
The extraction from them can keep fresh vegetable because of containing phytoncide, and using ethanol and water as solvent, has not anything residues of harmful material in vegetable.
生姜大蒜富含营养素，可食无毒，含有植物杀菌素，其提取物对蔬菜均有保鲜作用，提取用溶剂乙醇和水不会造成任何有害物质残留。
The extraction from them can keep fresh vegetable because of containing phytoncide, and using ethanol and water as solvent, has not anything residues of harmful material in vegetable.
生姜大蒜富含营养素，可食无毒，含有植物杀菌素，其提取物对蔬菜均有保鲜作用，提取用溶剂乙醇和水不会造成任何有害物质残留。
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