The determination of water content in fuel ethanol by gas chromatograph y was introduced.

研究了氣相色譜法分析燃料乙醇中的水分。

Also the molecular structure and functional effects of this active component were studied in detail. 1 Extraction, separation, purification and structural identification of the functional component in Chufa After initial handling of waste slurry to solid powder, ethanol was used to lixiviate it followed by the extraction with petroleum ether,ethyl acetate,n-butyl alcohol one by one, the polarity of three organic reagents being changed from low to high.

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Reductive conversion of geraniol to citronellol is adopted as a model reaction, and several factors in the reaction are discussed using gas chromatography method. The influence of n-hexane and butyl acetate, as organic solvents, on biocompatibility was studied; the influence of methanol, ethanol, glycol, n-butanol and 1-hexanol, as energy substance, on the transformation efficiency was compared, respectively; the catalysis capabilities of Baker's yeast, XST-KO yeast, LP yeast, alcohol yeast, dry yeast, Saccharomyces cerevisiae, Angel yeast and Meishan yeast were discussed. It has been proved that biocompatibility of n-hexane are much better than that of butyl acetate, and the hexane has been demonstrated the most effective in terms of the influence on biotransformation, Baker's yeast has shown the highest tranformation efficiency among the eight yeast strains.

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Ethanol is metabolized by ADH, and NAD is used as a cofactor in its metabolism .

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There is a growing realization that the only effective way to achieve further reductions in vehicle emissions—short of a massive shift away from the private automobile—is to replace conventional diesel fuel and gasoline with cleaner-burning fuels such as compressed natural gas, liquefied petroleum gas, ethanol, or methanol.

H 人們逐漸認(rèn)識(shí)到，唯一有效的方法來(lái)進(jìn)一步減少車(chē)輛尾氣的排放量——除了大規(guī)模減少私人汽車(chē)——替換傳統(tǒng)的柴油和汽油国产一级婬片A片免费无码，用燃燒得更加清潔的燃料国产精品国产免费，比如說(shuō)壓縮天然氣、液化石油氣老司机日韩精品伦理片、乙醇亚洲欧美日本一区、或者甲醇。

There is a growing realization that the only effective way to achieve further reductions in vehicle emissions --short of a massive shift away from the private automobile--is to replace conventional diesel fuel and gasoline with cleaner--burning fuels such as compressed natural gas, liquefied petroleum gas, ethanol , or methanol .

人們逐漸認(rèn)識(shí)到實(shí)現(xiàn)車(chē)輛尾氣排放更進(jìn)一步減少的唯一有效方法--大規(guī)模削減私人小汽車(chē)除外--是用燃燒更潔凈的燃料99ri视频精品这里精品，如壓縮天然氣超碰人人99、液化石油氣、乙醇色五月综合网、甲醇代替?zhèn)鹘y(tǒng)的柴油和汽油欧美日韩国产成A免费网站。

There is a growing realization that the only effective way to achieve further reductions in vehicle emissions - short of a massive shift away from the private automobile - is to replace conventional diesel fuel and gasoline with cleaner-burning fuels such as compressed natural gas, liquefied petroleum gas, ethanol, or methanol.

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And part of the key to that success is to expand beyond the confines of ethanol production, he said.

而成功的關(guān)鍵因素之一是是擴(kuò)大乙醇生產(chǎn)范圍以外的部分。

METHOD Thirty four species of 80% ethanol plant extracts stored for six months were tested against C. lagenarium by using growth rate and WA flat germination. The inhibitory rate of 11 PE against conidium germination of C.

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