{"title":"Microanalysis with the aid of ion-exchange resins","authors":"Masatoshi Fujimoto, Yukio Nakatsukasa","doi":"10.1016/S0003-2670(00)88410-X","DOIUrl":null,"url":null,"abstract":"<div><div>A new ultramicro method for detection of iron(III) is described. A colourless, strongly basic anion-exchangc resin of low cross-linkage in the chloride form is used to enhance the sensitivity of the colour reaction of iron(III) with ferron. The limit of identification of the new “qiresin spot test” is 4 ng of iron(III) (1 : 1·10<sup>7</sup>) after 10 to 20 min and 2 ng (l :2·107) after 50 min. The test is 50–100 times as sensitive as the usual spot test. Serious interferences were observed with cobalt(II), copper(II), chromiuin(VI), uranium(VI) and vanadium (V) ; the elimination of their interferences was also studied.</div></div>","PeriodicalId":240,"journal":{"name":"Analytica Chimica Acta","volume":"26 ","pages":"Pages 427-433"},"PeriodicalIF":6.0000,"publicationDate":"1962-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Analytica Chimica Acta","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S000326700088410X","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
引用次数: 0
Abstract
A new ultramicro method for detection of iron(III) is described. A colourless, strongly basic anion-exchangc resin of low cross-linkage in the chloride form is used to enhance the sensitivity of the colour reaction of iron(III) with ferron. The limit of identification of the new “qiresin spot test” is 4 ng of iron(III) (1 : 1·107) after 10 to 20 min and 2 ng (l :2·107) after 50 min. The test is 50–100 times as sensitive as the usual spot test. Serious interferences were observed with cobalt(II), copper(II), chromiuin(VI), uranium(VI) and vanadium (V) ; the elimination of their interferences was also studied.
期刊介绍：
Analytica Chimica Acta has an open access mirror journal Analytica Chimica Acta: X, sharing the same aims and scope, editorial team, submission system and rigorous peer review.
Analytica Chimica Acta provides a forum for the rapid publication of original research, and critical, comprehensive reviews dealing with all aspects of fundamental and applied modern analytical chemistry. The journal welcomes the submission of research papers which report studies concerning the development of new and significant analytical methodologies. In determining the suitability of submitted articles for publication, particular scrutiny will be placed on the degree of novelty and impact of the research and the extent to which it adds to the existing body of knowledge in analytical chemistry.
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