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zb6824785木蟲 (小有名氣)
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[求助]
求助關(guān)于頂空氣相色譜方面的文獻(xiàn)翻譯(中譯英)
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4 河流底泥硫化物的測(cè)定( GC-9A/FPD) 取25ml 頂空瓶加1.0g 河流沉積物, 加5.0ml蒸餾水, 搖動(dòng)使沉積物均勻分散, 加入1:1 硫酸1.0ml, 使硫化物生成H2S, 迅速蓋塞, 搖動(dòng)1min,于室溫靜置30min, 使其充分平衡。用氣密型注射器取100μl頂空氣體進(jìn)樣, 記錄色譜峰面積。 |
金蟲 (著名寫手)
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4 Determination of sulfide in river sediments (GC-9AFPD) To a 25ml headspace vial, add 1.0g of river sediment and 5.0ml of distilled water, after shaking thoroughly, add 1.0ml of 1:1 sulfuric acid to produce H2S from sulfide, cap plug rapidity, shake for 1 min,allow to stand at room temperature for 30 min to reach an equilibrium.Inject 100μl of headspace gas with a vapor-tight syringe, record the chromatograms. |
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