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zhlrrttrr 2009-03-18
Ethylacetate(Quimis,p.a.),methanol(Quimis,p.a.),sec-butanol(Merck,HPLCgrade),oleicacid(Merck,extrapure),hydrogenperoxide(Interox,70%,w/waqueoussolution),aluminumoxideforc... Ethyl acetate (Quimis, p.a.), methanol (Quimis, p.a.), sec- butanol (Merck, HPLC grade), oleic acid (Merck, extra pure), hydrogen peroxide (Interox, 70%, w/w aqueous solution), aluminum oxide for chromatography (Fluka, 0.05–0.15 mm), aluminum oxide for column chromatography (Acros Organics, activated, acidic, 0.1–0.5 mm), aluminum tri-sec-butoxide (Aldrich, 99.99%), oxalic acid (Synth, p.a.), di-n-butyl ether (Fluka, >99%) and soybean oil (Cargill) were used as received. The solution of anhydrous hydrogen peroxide (24%, w/w) in ethyl acetate was prepared from aqueous H2O2 (70%, w/w) in ethyl acetate by azeotropic distillation with a Dean-Stark apparatus [14] The products were identified by gas chromatography–mass spectroscopy (GC–MS) using a Hewlett-Packard 5890 gas chromatograph equipped with a AT-Wax column and interfaced with a Hewlett-Packard 5971A mass spectrometer. Helium was used as the carrier gas. A similarly equipped Hewlett-Packard5890 gas chromatograph using nitrogen as the carrier gas and a flame ionization detector was used for product quantification, with the help of calibration curves.
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CF云强菜鸟
Ethyl acetate (Quimis, p.a.), methanol (Quimis, p.a.), sec- butanol (Merck, HPLC grade), oleic acid (Merck, extra pure), hydrogen peroxide (Interox, 70%, w/w aqueous solution),
aluminum oxide for chromatography (Fluka, 0.05–0.15 mm), aluminum oxide for column chromatography (Acros Organics, activated, acidic, 0.1–0.5 mm), aluminum tri-sec-butoxide
(Aldrich, 99.99%), oxalic acid (Synth, p.a.), di-n-butyl ether (Fluka, >99%) and soybean oil (Cargill) were used as received. The solution of anhydrous hydrogen peroxide (24%, w/w) in ethyl acetate was prepared from aqueous H2O2 (70%, w/w) in ethyl acetate by azeotropic distillation with a Dean-Stark apparatus [14].
乙酸乙酯(Quimis,p.a)、甲醇(Quimis,p.a)、仲丁醇(Merck,HPLC等级)、油酸(Merck,超纯)过氧化氢(Interox, 70%,w/w水溶液)、气相色谱用氧化铝(Fluka,0.05-0.15mm)、用于柱层析的氧化铝(Acros Organics,活化的,酸性的,0.1-0.5mm),三-仲丁醇(Aldrich, 99.99%)、草酸(Synth, p.a.)、二-n-丁醚(Fluka,>99.%)和大豆油(Cargill)被采用采纳。无水过氧化氢在乙酸乙酯中的溶液(24%,w/w)由乙酸乙酯中的含水H2O2(70%, w/w)通过用Dean-Stark设备共沸精馏而制备【14】。
The products were identified by gas chromatography–mass spectroscopy (GC–MS) using a Hewlett-Packard 5890 gas chromatograph equipped with a AT-Wax column and interfaced with a Hewlett-Packard 5971A mass spectrometer. Helium was used as the carrier gas. A similarly equipped Hewlett-Packard5890 gas chromatograph using nitrogen as the carrier gas and a flame ionization detector was used for product quantification, with the help of calibration curves.
产品用气相色谱质谱反光镜法(GC-MS)鉴定,用HP公司的5890气相色谱仪配备AT-Wax毛细管柱,并与一台HP公司的5971质谱仪接口。氦被用作载流气体。一台类似配备的HP5890 气体色谱仪采用氮气作为载流气体,一台氢火焰离子化检测器被用于借助校准曲线检验产品的合格与否。
3 0 2009-03-20 0条评论 回复
坠天使乔
乙酸乙酯( Quimis ,巴勒斯坦权力机构) ,甲醇( Quimis ,巴勒斯坦权力机构) ,仲丁醇(默克,GX液相色谱级) ,油酸(默克,额外纯) ,过氧化氢(特罗斯, 70 % ,瓦特/ W型水溶液) ,
氧化铝为色谱法(盐, 0.05-0.15毫米) ,氧化铝进行柱层析(阿有机物,活性,酸性, 0.1-0.5毫米) ,铝三仲丁醇
( Aldrich公司, 99.99 % ) ,草酸(合成器,功率放大器) ,二正丁基醚(铵, “ 99 % )和大豆油(嘉吉)被用作收到。解决无水过氧化氢( 24 % ,瓦特/ W型)在乙酸乙酯制备过氧化氢水溶液( 70 % ,瓦特/ W型)的乙酸乙酯共沸蒸馏与院长斯塔克仪器[ 14 ]
该产品被确定的气相色谱,质谱( GC - MS分析)使用的是惠普5890气相色谱仪配备了美国蜡柱和接口与惠普5971A质谱仪。氦气被用来作为载气。类似的配备惠普Packard5890气相色谱仪使用氮气作为载气和火焰离子化检测器是用于产品量化的帮助下,校准曲线。
18 0 2009-03-20 0条评论 回复
alwaystantan
乙酸乙酯( Quimis ,巴勒斯坦权力机构) ,甲醇( Quimis ,巴勒斯坦权力机构) ,仲丁醇(默克,GX液相色谱级) ,油酸(默克,额外纯) ,过氧化氢(特罗斯, 70 % ,瓦特/ W型水溶液) ,氧化铝为色谱法(盐, 0.05-0.15毫米) ,氧化铝柱,色谱法(阿有机物,活性,酸性, 0.1-0.5毫米) ,铝三秒丁醇(奥尔德里奇, 99.99 % ) ,草酸(合成器,功率放大器) ,二正丁基醚(铵, “ 99 % )和大豆油(嘉吉)被用作收到。解决无水过氧化氢( 24 % ,瓦特/ W型)在乙酸乙酯制备过氧化氢水溶液( 70 % ,瓦特/ W型)的乙酸乙酯共沸蒸馏与院长斯塔克仪器[ 14 ]
该产品被确定的气相色谱,质谱( GC - MS法)使用1惠普5890气相色谱仪配备了美国蜡柱和接口与惠普5971A质谱仪。氦气被用来作为载气,氦气被用来作为载气。类似的配备惠普Packard5890气相色谱仪使用氮气为载体,气体和火焰离子化检测器是用于产品量化的帮助下,校准曲线。

(仅供参考哈,你是学啥的,这翻译这么麻烦,可累死我了!!)
7 0 2009-03-19 0条评论 回复
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