采用高速逆流色谱法（HSCCC），以正己烷氯仿甲醇水组成二相系统作为固定相与流动相，对黄芪的乙酸乙酯粗提物进行了分离纯化。
Preparative high-speed counter-current chromatography (HSCCC) was used for the separation of calycosin and formononetin from the ethyl acetate extract of Astragalus membranaceus Bge.
礼仪阻止气体生成，因此，再没有新的甲醇氯仿物能够打乱这项研究的数据了。
The gas was banned by the Montreal Protocol, so now, no new methyl chloroform is fouling the data.
既然再不会生成这种气体，那么，科学家们就能够更精确地测量在甲醇氯仿物的空气聚合反应中生成的氢化物水平。
Now that the gas is no longer being produced, scientists can more accurately gauge the action of hydroxyl upon methyl chloroform's atmospheric concentration.
但是，结果已经发生了很大变化，可能是因为对人类活动生成的甲醇氯仿物估计不准造成的。
But the results varied widely, possibly because of inaccurate estimates of methyl chloroform released by human activities.
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。
Results It is evident that the content of matrine in Sophora flavescens using chloroform as solvent is less than using methanol or acid methanol.
介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。
An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.
何首乌用70%甲醇超声提取浓缩后，用氯仿萃取分离出游离和结合型蒽醌，得到定量用试液。
Using 70% methanol, the Polygonum multiforum extract was concentrated by ultrasonic method . Then concentrated extract was leached with chloroform and separated into free and bound anthraquinones.
经氯仿：甲醇(4：1)混合溶剂索式提取的贝母药材HPLC图谱效果最好，其它次之。
Furthermore, we found the best HPLC spectrum of Fritillaria Jilin was soxhlet method with the solvent of chloroform and methanol (4:1), the others were no better than it.
叶的甲醇抽提物活性高于氯仿抽提物和石油醚抽提物。
The insecticidal activity of methanol extract was higher than that of chloroform extract and petroleum extract.
样品予处理采用氯仿—甲醇（9：1）混合液为提取剂，使用一只长颈漏斗将提取和净化步骤一次完成。
The samples of grain were extracted with chloroform-methyl alcohol(9:1), and using a long neck funnel, extracting aad Cleaning up of the samples were finished at thg same time.
样品经甲醇提取后，再用氨水-氯仿萃取。
The samples were prepared by extraction using methanol followed by partitioning between ammonium hydroxide and chloroform.
通过对PMEW萃取分离发现，在甲醇水、氯仿、石油醚和乙酸乙酯四种萃取物中仍以甲醇水的萃取率最高。
In four extracts from PMEW treated with methyl alcohol and water, petroleum ether, chloroform and ethyl acetate, extract rate of methyl alcohol and water was the highest.
甲烷也是许多工业材料的原料，包括肥料、炸药、甲醇、氯仿、四氯化碳以及碳黑等。甲烷是甲醇的主要来源。
It is also a raw material for many industrial materials, including fertilizers, explosives, chloroform, carbon tetrachloride, and carbon Black, and is the principal source of methanol.
甲烷也是许多工业材料的原料，包括肥料、炸药、甲醇、氯仿、四氯化碳以及碳黑等。甲烷是甲醇的主要来源。
It is also a raw material for many industrial materials, including fertilizers, explosives, chloroform, carbon tetrachloride, and carbon Black, and is the principal source of methanol.
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