The phase separation of lamellar vesicles of anionic
surfactants in aqueous solutions and its application as a
novel liquid coacervate extraction procedure was examined.
Solutions of lauric acid sodium salt separate into
two phases in the presence of alkaline earth metals and a
water miscible cosurfactant. It is proven that the surfactant
phase is built of a perplexed network of multilamellar
vesicles consisting of densely packed bilayers. Several
factors affecting the formation of this new phase as well
as its analytical utility in the preconcentration of metallic
ions were assessed on the basis of better exploitation of
this new nonspecific extraction technique. In essence,
although the procedure to arrive at the optimum conditions
seems laborious, the delivered method is straightforward,
alleviating the requirement for prereaction with
a complexing agent and highly reproducible under the
optimum experimental conditions. As an analytical demonstration,
the method was successfully applied to the
determination of Cd2 and Zn2 in natural waters. Recoveries
were higher than 95%, and detection limits as low
as 3 ig L-1 were accomplished by preconcentrating only
10 mL of sample volume in the presence of 0.45% (w/v)
anionic surfactant.
麻煩各位可以幫我翻譯一下嗎?因為實在不懂他說什麼~
謝謝大家!!
2005-11-29 09:19:18 · 3 個解答 · 發問者 Mark 1 in 社會與文化 ➔ 語言
請問那月桂酸的單字是哪一個呢?還有能否再通順一些?因為這好像是翻譯軟體翻出來的~拜託大家~謝謝!!
2005-12-01 03:26:45 · update #1
The phase separation of lamellar vesicles of anionic surfactants in aqueous solutions and its application as a novel liquid coacervate extraction procedure was examined.水溶液中負離子表面活性劑薄狀泡的狀態分離,及其作為一個新的液態凝層提萃取法的應用被研究過。Solutions of lauric acid sodium salt separate into two phases in the presence of alkaline earth metals and a water miscible cosurfactant. 月桂酸氯化鈉溶液遇到鹼土金屬和具水溶性的表面活性劑時分離成二種狀態。> lauric acid 月桂酸 It is proven that the surfactant phase is built of a perplexed network of multilamellar vesicles consisting of densely packed bilayers. 表面活性劑的狀態是由緊密的雙分子層形成的多層薄狀泡的一個複雜系統所構成的是被證明過的。Several factors affecting the formation of this new phase as well as its analytical utility in the preconcentration of metallic ions were assessed on the basis of better exploitation of this new nonspecific extraction technique. 基於如何利用這個非特定的新提取技術而對與這個新狀態的形成有關的許多因素,及其金屬離子濃縮前的分析效用進行評估。In essence, although the procedure to arrive at the optimum conditions seems laborious, the delivered method is straightforward, alleviating the requirement for prereaction with a complexing agent and highly reproducible under the optimum experimental conditions. 基本上,雖然要達到最適宜環境的步程並不容易,它提供了簡單的方法來減少 在最適宜的實驗環境下對復雜化劑和再生度高的預反應的需要。As an analytical demonstration, the method was successfully applied to the determination of Cd2 and Zn2 in natural waters. 在一次分析示範中,這個方法被成功地應用於在自然水域中測定 Cd2 和 Zn2 的實驗。Recoveries were higher than 95%, and detection limits as low as 3 ig L-1 were accomplished by preconcentrating only 10 mL of sample volume in the presence of 0.45% (w/v) anionic surfactant.高於 95% 的回復率和低到 3 ig L-1 的檢定極限,是由在 0.45% (w/v) 負離子表面活性劑中只預濃縮了 10 毫升的樣品容積而達成的。
2005-12-04 07:48:50 · answer #1 · answered by bc 7 · 0⤊ 0⤋
在相分離層泡陰離子
表面活性劑在水溶液中的應用作為
新型液體凝聚提取工藝進行了檢查。
解月桂酸鈉單獨成
分兩個階段進行,在場的鹼土金屬和
水混助。這是證明,表面活性劑
階段是建立一個困惑的多層網絡
小泡組成的密集的雙層。幾個
影響因素形成的這一新階段以及
作為其分析工具中的富集金屬
離子進行評估的基礎上,更好地利用
這一新的非特異性萃取技術。從
2008-11-15 11:27:31 補充:
本質上說,
雖然程序達成的最佳條件
似乎費力的,交付的方法很簡單,
減輕要求與prereaction
1絡合劑和高度的重複性
最佳實驗條件。作為一種分析表明,
該方法成功地應用於
測定鎘和鋅在自然水域。回收率
均高於95 % ,並檢出限低
3大L - 1的人所完成preconcentrating只
10毫升的樣品數量,在場的0.45 % (瓦特/五)
陰離子表面活性劑。
2008-11-15 06:27:22 · answer #2 · answered by Q_Q 1 · 0⤊ 0⤋
負離子表面活化劑在水溶液和它的應用薄片狀泡的階段分離作為一個新穎的液體coacervate 提取做法被審查了。月桂酸酸鈉鹽的解答分離入二個階段在鹼性地球金屬和水混溶性cosurfactant 面前。它證明, 表面活化劑階段被建立multilamellar 泡一個為難的網路包括密集地被包裝的bilayers 。幾個因素影響這個新階段的形成並且它的分析公共事業在金屬離子的預濃縮被估計了根據這個新未指明的提取技術的更好的開發。實質上, 雖然做法到達在最佳條件似乎費力, 被提供的方法是直接的, 緩和prereaction
的要求與絡合代理和高度可再生在最宜的實驗性條件下。作為一次分析示範, 方法嚮Cd2 和Zn2 的決心成功地被運用了在自然水域中。補救比95%, 和檢測極限高級一樣低像3 ig L-1 由預濃縮完成了只10 機器語言樣品容量在0.45% (w/v) 負離子表面活化劑面前。
2005-11-29 10:15:43 · answer #3 · answered by 小冬 2 · 0⤊ 0⤋