氟代纳米乳液光极的基础研究：基质氟化对选择性的影响。
Fundamental investigation on fluorous nanoemulsion optodes: effect of matrix fluorination on selectivity.
作者信息
Iwamoto Soraka, Sueyoshi Kenji, Endo Tatsuro, Hisamoto Hideaki
机构信息
Department of Applied Chemistry, Graduate School of Engineering, Osaka Metropolitan University, 1-1 Gakuencho, Nakaku, Sakai, Osaka, 599-8531, Japan.
Department of Chemistry, School of Science, Kitasato University, 1-15-1 Kitasato, Minamiku, Sagamihara, Kanagawa, 252-0373, Japan.
出版信息
Anal Sci. 2024 Sep;40(9):1787-1792. doi: 10.1007/s44211-024-00603-w. Epub 2024 May 25.
As fundamental investigation on fluorous nanoemulsion (NE) optodes for highly selective perfluorooctanesulfonate (PFOS) sensing, the effect of matrix fluorination on selectivity was investigated. Due to the high hydrophobicity of PFOS itself, it responded in exhaustive mode regardless of the fluorination ratio of the matrix, and the lowest detectable PFOS concentration was on the order of 10 to 10 M. On the other hand, the response of non-fluorous interfering anions was suppressed as the fluorination ratio of the matrix increased. It was revealed that the relative selectivity of PFOS for hydrophobic anions, ClO, SCN, and 1-octanesulfonate (OS) was improved by more than one order of magnitude, up to nearly two orders of magnitude, and that it was also improved by less than one order of magnitude for hydrophilic anions, Br, Cl, and SO, in logarithmic selectivity coefficient (log ).
作为对用于高选择性全氟辛烷磺酸（PFOS）传感的氟代纳米乳液（NE）光极的基础研究，研究了基质氟化对选择性的影响。由于PFOS本身具有高疏水性，无论基质的氟化比例如何，它都以耗尽模式响应，并且最低可检测的PFOS浓度约为10至10 M。另一方面，随着基质氟化比例的增加，非氟代干扰阴离子的响应受到抑制。结果表明，PFOS对疏水性阴离子ClO、SCN和1-辛烷磺酸盐（OS）的相对选择性提高了一个多数量级，高达近两个数量级，对于亲水性阴离子Br、Cl和SO，在对数选择性系数（log ）中也提高了不到一个数量级。
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