Preconcentration and separation of trace elements in environmental samples with various sorbents

各种吸附剂对环境样品中微量元素的富集和分离

• 批准号: 03453041
• 负责人: TERADA Kikuo
• 金额: $ 5.12万
• 依托单位: Kanazawa 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: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-03453041/
• 关键词: Preconcentration; DTC-chitin; gold(III); palladium(II); ruthenium(III); iron(II); cobalt(II); poly(chlorotrifluoroethylene) resin; 鉄(II); コバルト(II); フェロジン; ニトロソ-R塩; 吸光光度法; 天然水; ポリ(クロロトリフルオロエチレン); ジチオカルバメ-トーキチン; 金; パラジウム; ルテニウム; 鉄; 海水

1) The preconcentration methods of trace metals with various sorbents, such as activated carbon, porous polymer, chemically modified sorbents and natural polymers, were reviewed.2) A ditiocarbanate-chitin was synthesized and investigated for its adsorption behavior for gold, palladium and ruthenium ions. Gold and palladium were quantitatively retained of DTC-chitin from aqueous solution of 6 M HCl-pH 9, while ruthenium was retained only 40% at pH range 3.0-4.53) A new method for the preconcentration and determination of a trace amount of lithium in ppb-ppm order in water as its thenoyltrifluoroacetone complex with 12-crown-4 (12C4) has been established by means of synergic extraction and back extraction combined with flame photometry4) A new method of preconcentration and determination of a trace amount of lithium in ppb-ppm levels in water as its thenoyltrifluoroacetone complex with tributylphosphate has been established by means of extraction and back extraction combined with flame photometry.5) Adsorption behavior of metal-8-quinolinol sulfonate and - Bismuthiol II on poly(chlorotrifluoroethylene) resin was investigated and the preconcentration of trace metals as their 8-quinolinol and bimuthiol II complexes with the resin has been achieved.6) Preconcentration method of iron(II) and cobalt(II) as their ferrozine and nitroso-R complexes, respectively, with poly- (chlorotrifluoroethylene) resin has been established. The method was applied to analysis of natural waters for both elements.

1)综述了活性炭、多孔聚合物、化学改性吸附剂、天然高分子等吸附剂对痕量金属的富集方法。2）合成了二硫代氨基甲酸酯-甲壳素，并研究了其对金、钯、钌离子的吸附性能。在6M HCl-pH9的水溶液中，DTC-甲壳素可定量保留金和钯，在pH3.0 - 4.53范围内，钌的保留率仅为40%。研究了噻吩甲酰三氟丙酮与12-冠-4（~（12）C_4）络合物富集测定水中痕量锂的新方法。建立了协同萃取-反萃取-火焰光度法测定痕量锂的新方法。通过萃取和反萃取结合火焰，确定了噻吩甲酰三氟丙酮与磷酸三丁酯的络合物在水中的ppm水平5）金属-8-羟基喹啉磺酸盐和-硫醇铋II在聚乙烯上的吸附行为研究了三氟氯乙烯树脂对痕量金属离子的吸附性能，并建立了8-羟基喹啉和联二硫醇Ⅱ配合物在树脂上的富集方法。6）铁（Ⅱ）和钴（Ⅱ）分别以亚铁嗪和亚硝基R配合物的形式富集的方法。与聚三氟氯乙烯树脂的结合已经建立。该方法适用于分析天然沃茨中的两种元素。

项目成果

Norio OOKA: "Preconcentration and determination of a trace amount of lithium in water as its thenoyltrifloroacetone complex with tributylphosphate by means of solvent extraction and flame photometry" Proc.Intern.Solvent Extraction Conf..457-461 (1992)

Norio OOKA：“通过溶剂萃取和火焰光度法预浓缩和测定水​​中痕量的锂，作为其与磷酸三丁酯的噻吩酰基三氟丙酮络合物”Proc.Intern.Solvent Extraction Conf..457-461 (1992)

Takashi YAMAGUCHI: "Preconcentration of trace metals as their complexes on poly(Ohlorotrifluoroethylene)resin" Analytical Sciences. 8. 851-855 (1992)

Takashi YAMAGUCHI：“痕量金属作为其复合物在聚（氯三氟乙烯）树脂上的预富集”分析科学。

Tatsuo ITO: "Separation and determination of lithium as its thenoyltrifluoroacetone complex with 12-crown-4 by means of synergic extraction and flame" Analytical Sciences. 7. 47-50 (1992)

Tatsuo ITO：“通过协同萃取和火焰分离和测定锂及其与 12-冠-4 的噻吩酰基三氟丙酮络合物”分析科学。

寺田 喜久雄(分担執筆): "分析化学ハンドブック" 朝倉書店, 1051 (1992)

寺田喜久夫（撰稿人）：《分析化学手册》朝仓书店，1051（1992）

Kikuo TERADA: "Preconcentration Techniques for Trace Elements Chapter 7,Preconcentration by Sorption" CRC Pres,Inc.Boca Raton,FL,U.S.A., 461 (1992)

Kikuo TERADA：“痕量元素的预浓缩技术第 7 章，吸附法预浓缩”CRC Pres,Inc.Boca Raton,FL,U.S.A., 461 (1992)