 |
 |
 |
 |
 |
 |
||
 |
 |
 |
 |
 |
| 1 | 1/1 | 返回列表 |
| 查看: 349 | 回復(fù): 0 | |||
[求助]
幫忙翻譯2個(gè)英文摘要，謝謝！
|
|
一． Methacrylate-based monolithic columns with electroosmotic flow (EOF) or very weak EOF are prepared by in situ copolymerization in the presence of a porogen in fused-silica capillaries pretreated with a bifunctional reagent. Satisfactory separations of acidic and basic compounds on the column with EOF at either low or high pH are achieved, respectively. With sulfonic groups as dissociation functionalities, sufficient EOF mobility still remains as high as 1.74×10−4 cm2 s−1 V−1 at low pH. Under this condition, seven acidic compounds are readily separated within 5.7 min. Moreover, at high pH, the peak shape of basic compounds is satisfactory without addition of any masking amines into running mobile phase since the secondary interaction between the basic compounds and the monolithic stationary phase are minimized at high pH. Reversed-phase mechanism for both acidic and basic compounds is observed under investigated separation conditions. In addition, possibilities of acidic and basic compound separations on a monolithic column with extremely low EOF are discussed. Keywords: Electrochromatography; Monolithic columns; Stationary phases, electrochromatography 二． In summary, we take advantage of the color change of gold nanoparticles induced by hydrogen-bonding recognition to develop a novel nanoparticle sensor for visual detection of melamine. This new method offers several advantages over current melaminedetection techniques. First, the method does not require expensive and complicated instruments, which simplifies operations and reduces the cost. Second, the method allows a detection concentration as low as 2.5 ppb to be achieved with the naked eye within 1 min, useful for rapid and ultrasensitive detection of melamine in milk products. Finally, this sensor exhibits excellent selectivity for melamine over other molecules with similar structures and the residual ingredient in the extract from raw milk and commercially available infant formula. These advantages substantially make this method quite promising for on-site and real-time detection of melamine in raw milk, infant formula, and other milk products |
回復(fù)此樓» 猜你喜歡
數(shù)一英一271專(zhuān)碩（085401）求調(diào)劑，可跨
已經(jīng)有8人回復(fù)
-
295求調(diào)劑
已經(jīng)有4人回復(fù)
-
0856求調(diào)劑
已經(jīng)有5人回復(fù)
-
材料學(xué)碩333求調(diào)劑
已經(jīng)有10人回復(fù)
-
299求調(diào)劑
已經(jīng)有6人回復(fù)
-
一志愿鄭州大學(xué)，080500學(xué)碩，總分317分求調(diào)劑
已經(jīng)有6人回復(fù)
-
289求調(diào)劑
已經(jīng)有12人回復(fù)
-
070305高分子化學(xué)與物理 304分求調(diào)劑
已經(jīng)有6人回復(fù)
-
0703化學(xué)調(diào)劑，求導(dǎo)師收
已經(jīng)有10人回復(fù)
-
各位老師好，我的一志愿為北京科技大學(xué)085601材料專(zhuān)碩
已經(jīng)有5人回復(fù)
相關(guān)版塊跳轉(zhuǎn)
我要訂閱樓主 白石的詞 的主題更新
| 1 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 311（085601）求調(diào)劑 +4 | liziyeyeye 2026-03-28 | 4/200 |
|
|---|---|---|---|---|
|
|
[考研]
 一志愿廈門(mén)大學(xué)化學(xué)學(xué)碩307求調(diào)劑
+10
|
y7czhao 2026-03-26 | 10/500 |
|
|
|
[考研] 346求調(diào)劑 一志愿070303有機(jī)化學(xué) +3 | 蘿卜燉青菜 2026-03-28 | 3/150 |
|
|
|
[考研] 299求調(diào)劑 +7 | 嗯嗯嗯嗯2 2026-03-27 | 7/350 |
|
|
|
[考研] 材料與化工（0856）304求B區(qū)調(diào)劑 +8 | 邱gl 2026-03-27 | 8/400 |
|
|
|
[考研] 283求調(diào)劑 +7 | A child 2026-03-28 | 7/350 |
|
|
[考研] 材料292調(diào)劑 +12 | 橘頌思美人 2026-03-23 | 12/600 |
|
|
|
[考研] 287求調(diào)劑 +10 | land xuxu 2026-03-26 | 10/500 |
|
|
|
[考研] 0856調(diào)劑 +5 | 求求讓我有書(shū)讀?/a> 2026-03-26 | 6/300 |
|
|
|
[考研] 材料調(diào)劑 +8 | 匹克i 2026-03-23 | 8/400 |
|
|
|
[考研] 343求調(diào)劑 +4 | 贈(zèng)我一本書(shū) 2026-03-23 | 4/200 |
|
|
|
[考研] 342求調(diào)劑 +3 | 加油a李zs 2026-03-26 | 3/150 |
|
|
|
[考研] 081700 調(diào)劑 267分 +11 | 迷人的哈哈 2026-03-23 | 11/550 |
|
|
|
[考研] 化學(xué)調(diào)劑一志愿上海交通大學(xué)336分-本科上海211 +4 | 小魚(yú)愛(ài)有機(jī) 2026-03-25 | 4/200 |
|
|
|
[考研] 一志愿南航 335分 | 0856材料化工 | GPA 4.07 | 有科研經(jīng)歷 +6 | cccchenso 2026-03-23 | 6/300 |
|
|
|
[考研] 0854電子信息求調(diào)劑 324 +4 | Promise-jyl 2026-03-23 | 4/200 |
|
|
|
[考研] 一志愿國(guó)科過(guò)程所081700，274求調(diào)劑 +3 | 三水研0水立方 2026-03-23 | 3/150 |
|
|
|
[考研] 一志愿重慶大學(xué)085700資源與環(huán)境，總分308求調(diào)劑 +7 | 墨墨漠 2026-03-23 | 8/400 |
|
|
|
[論文投稿] 急發(fā)核心期刊論文 +3 | 賢達(dá)問(wèn)津 2026-03-23 | 5/250 |
|
|
|
[考研] 285求調(diào)劑 +6 | ytter 2026-03-22 | 6/300 |
|