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東坡小白銀蟲 (初入文壇)
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[求助]
自己翻譯的摘要，覺得不規(guī)范，請前輩幫我改下，
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采用殼聚糖為原料，戊二醛進(jìn)行交聯(lián),氯乙酸進(jìn)行羧甲基化，制得羧甲基殼聚糖微球；然后以Ni2+為印跡離子通過分子印跡技術(shù)改性羧甲基殼聚糖微球，制得印跡改性羧甲基殼聚糖微球�？疾炝随嚌舛�、戊二醛用量、洗脫時間等因素對印跡交聯(lián)改性的影響，實驗結(jié)果顯示最佳印跡改性條件為：鎳離子濃度5g/L、戊二醛用量20mL、洗脫時間7h。探討了印跡改性羧甲基殼聚糖微球吸附鎳的影響因素，選出最佳吸附條件，結(jié)果表明：pH=8、60mg吸附劑用量、80min吸附時間、25℃吸附溫度為最佳吸附條件。對自制的印跡改性羧甲基殼聚糖微球與殼聚糖用含Ni2+廢水進(jìn)行了吸附效果對比，其吸附率分別為62.45%和47.97%，表明印跡改性羧甲基殼聚糖微球的吸附性能相對與殼聚糖有了較大的提升。 如果寫的太差，請幫忙翻譯一下。。Carboxymethyl chitosan microspheres were prepared as raw product using chitosan as original material, glutaraldehyde as the cross-linking agent,and chloroacetic acid as the carboxymethylation substance.Then modified by molecular imprinting technology using Ni2+ ion as template.for use in the adsorbtion of Ni2+.The condition of imprinting modification and absotbtion were studied.The results showed that the best modification was got when Ni2+ concentration was 5g/L,glutaraldehyde dosage was 20mL and elutingtime is 7h and the maximum adsorbtion for Ni2+ occured at pH=8, adsorbentdosage was 60 mg,adsorption time was 80 min and adsorption temperature was 25℃.Compared absorbtions of modified carboxymethyl chitosan microspheres and chitosan to Ni2+ in wastewater which were 62.45% and 47.97%,indicating that the absorbtion property of the former is better. |
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東坡小白
銀蟲 (初入文壇)
- 應(yīng)助: 0 (幼兒園)
- 金幣: 1118
- 帖子: 41
- 在線: 22.2小時
- 蟲號: 1153672
- 注冊: 2010-11-23
- 性別: GG
- 專業(yè): 環(huán)境分析化學(xué)
2樓2012-05-18 09:28:17
vivanslum
木蟲 (正式寫手)
- 翻譯EPI: 94
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- 注冊: 2012-05-07
- 專業(yè): 環(huán)境工程
【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★
Mally89: 金幣+1, 感謝應(yīng)助！~歡迎常來！~吼吼！~\(^o^)/~ 2012-05-18 17:29:26
東坡小白: 金幣+10, 翻譯EPI+1, ★★★★★最佳答案, 評價晚了。。非常感謝你的幫助�。� 2012-05-20 23:00:19
Mally89: 金幣+1, 感謝應(yīng)助！~歡迎常來！~吼吼！~\(^o^)/~ 2012-05-18 17:29:26
東坡小白: 金幣+10, 翻譯EPI+1, ★★★★★最佳答案, 評價晚了。。非常感謝你的幫助�。� 2012-05-20 23:00:19
| Carboxymethyl chitosan microspheres were prepared by using chitosan as the original material, glutaraldehyde as the cross-linking agent, and chloroacetic acid as the carboxymethylation substance. Then the microspheres were furtherly modified by molecular imprinting technology using Ni2+ ion as template, to obtain the imprinted modified carboxymethyl chitosan microspheres. The influence of nickel concentration, the glutaraldehyde dosage, and elution time on the imprinted cross-linked modification was investigated. The results showed that the best modified conditions were: 5g/L Ni2+ concentration, 20mL glutaraldehyde and 7h elution time. The best adsorption conditions，where the maximum adsorption of nickel by modified carboxymethyl chitosan microspheres occurred，were that：pH=8, adsorbent dosage was 60 mg, adsorption time was 80 min and adsorption temperature was 25℃. We also compared the adsorption effects between self - made imprinting modified carboxymethyl chitosan microspheres and chitosan by using Ni2+-containing wastewater, and the adsorption rates were 62.45% and 47.97% respectively, indicating that the adsorption properties of modified carboxymethyl chitosan microspheres have been greatly improved. |
3樓2012-05-18 17:17:01
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