【摘要】：制備了新型β-環(huán)糊精包埋方酰胺衍生物SA(1,2,3,8-四氫環(huán)丁[b]喹喔啉-1,2-二酮)的化學(xué)探針,用于I~-和NO_2~-的選擇性識(shí)別.利用紫外-可見(jiàn)吸收光譜考察了包合物與F~-、Cl~-、Br~-、I~-、PF_6~-、SO_4~(2-)、CO_3~(2-)、NO_3~-、NO_2~-的相互作用.結(jié)果表明,I~-和NO_2~-的存在下包合物溶液的紫外-可見(jiàn)吸收光譜分別在262和365nm處吸收強(qiáng)度顯著增強(qiáng)出現(xiàn)特征吸收峰,揭示了探針對(duì)I~-和NO_2~-具有較好的定性選擇識(shí)別,并通過(guò)滴定試驗(yàn)分別對(duì)I~-和NO_2~-進(jìn)行了定量分析.
[Abstract]:A novel 尾 -cyclodextrin embedded derivative SA (1 ~ 2H _ 3H _ 3-tetrahydrocyclobutylamine [b] quinoxaline _ 1o _ 2-dione) was prepared and used for selective identification of NO_2~- and I ~ (-) in the presence of 尾 -cyclodextrin (尾 -cyclodextrin). The interaction between the inclusion complex and F _ (+) -C _ (1) -Br-C _ () ~ (-) ~ (2), CO_3~ (2-), NO_3~-,NO_2~- was investigated by UV-Vis absorption spectroscopy (UV-Vis). The results showed that the UV-Vis absorption spectra of inclusion complex solutions in the presence of I- and NO_2~- were significantly enhanced at 262 and 365nm, respectively, and the characteristic absorption peaks appeared. It is revealed that the probe has good qualitative selection and identification for I- and NO_2~-, and the quantitative analysis of I- and NO_2~- is carried out by titration test, respectively.
【作者單位】： 北京理工大學(xué)材料學(xué)院;中南民族大學(xué)化學(xué)與材料科學(xué)學(xué)院;
【分類號(hào)】：O657.3
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本文編號(hào)：2305005