采用反加法对四咪唑游离碱的制备进行了实验研究。
The preparation of tetramisole free alkali was studied with anti addition method.
本发明所述的衍生物为上述通式化合物的游离碱或盐。
The derivatives of the invention are free alkali or salt of the general formula compound.
经5次再生后的再生剂,其游离碱的再生活性比新鲜再生剂下降约10%。
The activity of the regenerated agent after 5 cycle of deactivation-regeneration was only 10% lower than that of the fresh regeneration agent.
研究表明:一价阴离子选择膜电渗析法从粗钨酸钠溶液中脱除游离碱是经济可行的。
It has been proved that it is economical and feasible to eliminate educt alkali from coarse sodium tungstate with electrodialysis method of negative ion (1) selective membrane.
酸式盐是一种更便于使用的形式;在实际应用中,使用盐形式与使用游离碱形式的量相等。
Acid addition salts are a more convenient form for use; and in practice, use of the salt form inherently amounts to use of the free base form.
该盐同嘌呤霉素游离碱具有相同的药理学性质,它的高度的水溶性能给体外研究应用提供一些优势。
While the salt shares the same pharmacological properties as puromycin free base, its greater water solubility may offer advantages in some in vitro applications.
以氯气和氢氧化钠为原料制备次氯酸钠溶液,控制其中游离碱含量在10.8%左右,有效氯在8.0%左右。
Sodium hypochlorite solution has been prepared by chlorine and sodium hydroxide, the content of free alkali should be controlled at about 10.8%, and the effective chlorine at about 8.0%.
这些化合物能溶于水,并含有游离的半缩醛羟基,所以在碱溶液中能还原银离子和铜离子。
These compounds are soluble in water, and contains the hemiacetal hydroxyl free, so in alkaline solution can reduce silver ions and copper ions.
在原料脱臭馏出物预处理后,以甲醇钠为碱催化剂,将原料与甲醇进行反应,使原料中的甾醇酯转化为游离甾醇。
After the pretreatment of PODD, sterol ester in PODD can be transesterified into free sterol with methanol while methanolic sodium as catalyst.
红藤提取物的总生物碱和游离蒽醌在不同产地之间有显著性差异(P<0.01),而在不同批次之间无显著性差异(P>0.05);
There was significant difference in the content of total alkaloid and dissociated emodin between different producing areas(P<0.01) and no difference between different batches(P>0.05).
结论碱提法提取大黄游离蒽醌的优选工艺稳定可行。
CONCLUSION Extracting the free anthraquinone with alkali extraction was feasible.
结果超滤法能有效地将石杉碱甲固体脂质纳米粒与游离石杉碱甲分离,回收率为98.09%,测得3批样品的平均包封率为57.63%。
Results Free drugs could be effectively separated from the Hup ASLN by ultrafiltration. The average entrapment efficiency of three batches of Hup ASLN was 57.63%, with the recovery of 98.09%.
结果表明,稻草碱木素具有较高的游离腐殖酸含量,其活性高,肥效好;
The results showed that alkali lignin of rice straw is a good fertilizer raw material. It has high dissociable humic acid content and good fertilizer efficiency.
结果表明,稻草碱木素具有较高的游离腐殖酸含量,其活性高,肥效好;
The results showed that alkali lignin of rice straw is a good fertilizer raw material. It has high dissociable humic acid content and good fertilizer efficiency.
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