Development of Transparent Film Having Functions of Separation, Concentration, and Sensing

具有分离、浓缩、传感功能的透明薄膜的研制

• 批准号: 01470063
• 负责人: YOTSUYANAGI Takao
• 金额: $ 3.33万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01470063/
• 关键词: Plasticizer; Polyvinylchloride; Visual Colorimetry; Film; Spectrophotometry; Fluorophotometry; lon-pair; Solvent Extraction; PVCフィルム; イオン対抽出; 分離濃縮媒体; 銅; ネオクプロイン; ミセル; 蛍光色素; 蛍光媒体; フッ素; 陰イオン性界面活性剤

A new, highly sensitive, and simple sensing method by the use of plasticized PVC film has been developed. The analyte is concentrated on the surface of the transparent film containing 20-30 % of plasticizer such as di-n-octylphthalate (DOP), which serves as a water immiscible second phase for extraction. The resulting film is measured by visual colorimetry or spectrophotometry. Extraction-fluorphotometry can be also adopted for this system. When a colored species is used as the counter ion in the ion-pair extraction colorimetry, marked enhancement of the sensitivity can be realized by the large molar absorptibity of the counter ion and by the color combination of the counter ion, the metal chelate, and the excess reagent, which is effective for discrimination by human eyes. While, adsorption of mono color species, such as the ion-pair of zephiramine (Z^+) and cupper (I) -neocuproin chelate, [CuL_2]^-, on PVC film also offers a high sensitivity without any problem of blank absorption. The detection limit for cupper is 4X10^<-7> mol dm^<-3> by visual colorimetry. The depth profile of the extracted species in the film phase has been investigated. Further, both of the soft PVC containing more than 70 wt% of plasticizer and the solvent without PVC have proved to be useful as new medium for ultra-concentration (3X10^4 hold), separation, and sensing of trace species.

利用增塑聚氯乙烯薄膜，研制了一种新的、高灵敏度、简便的传感方法。分析物集中在透明膜的表面，其中含有20-30%的增塑剂，如邻苯二甲酸二辛酯(DOP)，作为水不相容的第二相用于萃取。用目视比色法或分光光度法测量得到的胶片。该体系也可采用萃取-荧光分光光度法。在离子对萃取比色法中，当使用有色物种作为反离子时，由于反离子的摩尔吸光系数较大，并通过反离子、金属络合物和过量试剂的颜色组合，可以显著提高灵敏度，这对人眼的分辨是有效的。而对单色物种的吸附，如泽菲拉明(Z^+)和铜(I)-新铜试剂螯合物[CuL_2]^-在聚氯乙烯薄膜上的吸附也具有很高的灵敏度，没有空白吸收的问题。用目视比色法测定，铜的检出限为4×10~(-7)~(-3)。研究了萃取物在膜相中的深度分布。此外，含有70wt%以上增塑剂的软质聚氯乙烯和不含聚氯乙烯的溶剂都被证明是用于超浓缩(3x10^4)、分离和痕量物种传感的新介质。

项目成果

Emiko Kaneko, Hiroko Tanno, Takao Yotsuyanagi: "New Simple Film Colorimetry of Serum Iron (III) with PVC Film" Proceedings of international Trace Analysis Symposium 1990,. 63-70 (1990)

Emiko Kaneko、Hiroko Tanno、Takao Yotsuyanagi：“采用 PVC 膜的血清铁 (III) 的新型简单膜比色法”1990 年国际痕量分析研讨会论文集。

E.Kaneko,H.Tanno,T.Yotsuyanagi: "A New Simple Colorimetry of Serum Iron(III)with PVC Film" International Trace Analysis Symposium,Proceedings.

E.Kaneko、H.Tanno、T.Yotsuyanagi：“采用 PVC 膜的血清铁 (III) 的新型简单比色法”国际痕量分析研讨会，论文集。

Takao Yotsuyanagi: "Analytical Separations Based on Ionーpair Extration Principle ーDesign of Reagents and Systemsー" Proceedings of International Solvent Extraction Conference 1990. (1991)

Takao Yotsuyanagi：“基于离子对萃取原理的分析分离 - 试剂和系统的设计 -”1990 年国际溶剂萃取会议论文集。（1991 年）

Emiko Kaneko,Hiroko,Tanno,Takao Yotsuyanagi: "Ionーpair Adsorption Film Colorimetry of Iron〈III〉 in Water Samples and Human Serum" Mikrochimica Acta,. (1991)

Emiko Kaneko、Hiroko、Tanno、Takao Yotsuyanagi：“水样和人血清中铁〈III〉的离子对吸附膜比色法”Mikrochimica Acta，（1991）。

Takao Yotsuyanagi: "Analytical Separations Based on Ion-pair Extraction Principle -Design of Reagents and Systems-" Proceedings of International Solvent Extraction Conference 1990,. (1991)

Takao Yotsuyanagi：“基于离子对萃取原理的分析分离-试剂和系统的设计-”1990年国际溶剂萃取会议论文集，。