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【答案】应助回帖
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qhd511: 金币+35, 翻译EPI+1, ★★★★★最佳答案, 感谢您的修改，深表感谢！ 2012-06-12 09:00:57
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Add 5.0000g each simulation soil standard sample mentioned above and petroleum oil standard solutions into 50mL colorimetric tubes to make final simulation soil standard samples with concentrations of 0, 5.0, 10.0, 25.0, 50.0, and 100.0 mg.kg-1(2 parallel samples per concentration). The final simulation soil standard samples were then treated with ultrasonic solvent extraction and Soxhlet extraction and petroleum oils in these simulation soil standard samples were determined thereafter. The results of petroleum oils in these simulation soil standard samples were listed in Table 1 and it can be concluded that similar extraction effects can be achieved through both ultrasonic solvent extraction and Soxhlet extraction methods when the concentrations of simulation soil standard sample was below 25.0 mg.kg-1 while the extraction effects of ultrasonic solvent extraction were better than those of Soxhlet extraction when the concentrations were above 25.0 mg kg-1.即使你改过的中文还是让人不太明白！怎么加样量又成5g了？你到底怎么做的？以上翻译是按我理解弄的，你看看是否符合本来面貌。有问题再说吧 |
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