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qhd511鐵桿木蟲 (著名寫手)
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[求助]
一段自己翻譯的化學(xué)實(shí)驗(yàn)操作,請(qǐng)英語(yǔ)地道的專家潤(rùn)色,謝謝!
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自己翻譯的,水平比較差,有中文對(duì)照,請(qǐng)幫我潤(rùn)色,謝絕電腦翻譯! 10 mL C was added. Mix to keep C in contact with the sample fully. Then put it into the instrument (The 50 mL colorimetric tube might be placed in a 1000 mL breaker whose liquid level was higher than it in order to avoid fallen down). All the extraction times were 30 min. During the 15th min, the colorimetric tube was taken out and shaken upside down in order to make the sample in the bottom of the tube sufficient contact with C. The sample in the colorimetric tube was filtered into another 50 mL colorimetric tube through mid-speed qualitative filter paper which was immersed in C beforehand (a small amount of N was previously covered on the filter paper). The final solution volume was kept at 50mL with C. After 15 min, adding 5g of m to absorb o in the samples, shaking up and standing before the solution became clarification. The supernatant was used for the determination of o. 加入10mL C,蓋緊塞子,顛倒搖晃使樣品與C充分接觸,放入儀器中(注:為避免比色管倒到儀器水槽中,可將比色管先放入裝有適量水的1000mL燒杯中,使燒杯內(nèi)水的液面高于比色管中C的液面),總共萃取30min。在第15min時(shí)取出比色管,顛倒搖晃,使沉入管底樣品與C充分接觸。萃取完成后取出比色管,充分搖勻后將樣品用經(jīng)過(guò)C浸泡的中速定性濾紙(事先加少量N在濾紙上)過(guò)濾至50mL比色管中,用5mL C小心洗滌比色管,將洗滌液轉(zhuǎn)移至玻璃漏斗中,過(guò)濾完畢用5mL C洗滌漏斗。然后用C定容至刻度,搖勻。 放置15min后,用漏斗加入5g m,搖勻后靜置至溶液澄清,用上清液測(cè)定o。 |
精品翻譯集錦 |
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~~ [ Last edited by sltmac on 2012-6-10 at 10:04 ] |
鐵桿木蟲 (著名寫手)
鐵桿木蟲 (著名寫手)
至尊木蟲 (職業(yè)作家)
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