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lotuslxl铁杆木虫 (小有名气)
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在生产生物柴油过程中如何分离脂肪酸乙酯和三乙酸甘油酯
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| 紧急求助各位虫友，我爱人是做生物柴油的，现在遇到些问题！在利用菜籽油生产生物柴油过程，不知如何分离脂肪酸乙酯和三乙酸甘油酯！请有知道的虫友帮忙指点！！！ |
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Then analysis was done by injecting a 1 ll aliquot in a splitless mode into a Hewlett Packard 6890 gas chromatograph (Avondale, PA, USA) equipped with a flame-ionization detector and a DB-5 fused-silica capillary column (30 m 0:32 mm i.d.; film thickness 1 lm; J&W Scientific, Folsom, CA, USA). Injector and detector temperatures were set at 300 C. Oven initiating temperature was at 190 C, elevated to 215 C at 6 C/min, and then increased up to 300 C at 32 C/min, held for 3 min. Nitrogen was used as a carrier gas. The percentage yield (percent weight conversion) was defined as ðmg biodiesel mg initial soybean oilÞ 100% and was estimated using peak area integrated by on-line software Hewlett-Packard 3365 Series II ChemStation (Avondale, PA, USA). 摘自------ 期刊：Bioresource Technology 88 (2003) 103–106 文章题目：Optimization of lipase-catalyzed biodiesel by response surface methodology 自己看看吧，呵呵 |
3楼2007-06-17 21:41:48
2楼2007-06-10 22:43:10