Results It is evident that the content of matrine in Sophora flavescens using chloroform as solvent is less than using methanol or acid methanol.
结果用氯仿做溶媒时苦参中苦参碱的含量明显低于用甲醇或酸性甲醇做溶媒时的含量。
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）。
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。
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