propylidynetrimethanol Trimethylolpropane, carbamate with tolylene diisocyanate solution 1,1,1Trimethylolpropane Trimethyloy propane 1,1,1trishydroxymethylpropane Abbreviation 2ethyl2hydroxymethylpropane;Result reveals that steeping method with 50 per cent ethanol solution is better to extract pigment This red pigment can endure light and tepidity to some extent Na+, Mg2+, Zn2+ and Cu2+ ions have no;the amount of the reagent is the best TMK 005% ethanol solution 1mL HAcNaAc buffer pH value of 32 the best, the best is the amount of buffer solution 3mL surfactant Tween80 5% aqueous s。
然后将此硅胶板放入TLC展缸中事先气相饱和一小时,展开剂为氯仿比乙醇9010,在室温25摄氏度下展开色带中包含血根碱和白屈菜赤碱颜色为橙色和黄色,Rf值为06分别转移至50毫升单口瓶并加入又1%硫酸酸化的;3 移除介质的愿望,使细菌颗粒干越好4 Resuspend细菌颗粒在100 μl的冰冷的碱性裂解液本人的大力涡旋式5 新增200 μl的新鲜碱性裂解液二每个菌悬液关闭该管紧,以及混合 内容的反转迅速管的5倍不要涡。
Cellulase, buffered at pH=500±001, 10gl solution HCl, 5% solution H2SO4, 5% solution KOH Reagents For example, glucose can be easily fermented to ethanol by Saccharomyces cerevisiae yeast or Pseudomonas;70% ethanol 50ml Elution, gather 70% ethanol to renounce, reset the steaming water bath to about 5ml, moved into 10ml volumetric flask, add 70% ethanolfixed volume to scale, as a solution of test article;请先检查一下英文文段的正确性前两句话好像有问题,单词拼写有误,语法不通我不是学化工的,只能根据字面意思翻译,如有错误,请见谅这个样本提供了一个从101号化合物自由基中提取少量1型苯磺酸盐结晶的范例。
learn through the experiment that drawing time , density , firm liquid in supersound will have remarkable influence than on the drawing rate of supersound 60% ethanol solution of solution, than remarkable ultraso。
14 The method of claim 5 wherein the alcohol in step a is selected from the group consisting of ethanol, methanol and isopropyl alcohol15 The method of claim 6 wherein the temperature is lowered。
12,4dinitrophenyl2isopropyldiazene苯肼与羰基化合物反应 acetic acid乙醇重铬酸钾氧化 不反应丙烷不能与重铬酸钾反应 不反应银氨溶液不能与乙醇反应 不反应银氨溶液不能与丙酮反应 不反应斐林试剂不能与。
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