研究了新试剂8-[杯(4)芳烃偶氮]氨基喹啉(CAQ)与银的显色反应.在碱性介质中,在吐温-20存在下,CAQ与银发生显色反应,生成2:1桔红色稳定络合物,λmax=650hm,ε=1.15×105L/(mol@cm),银质量浓度在0～23μg/25ml范围内符合比尔定律.该方法用于显影液和工业废水中微量银的测定,结果令人满意.
参考文献
| [1] | Shinkai S;Moroi S;Koeishi H et al.Hexasulfonated Calix arene Derivatives: A New Class of Catalysts Surfactants and Host Molecules[J].Journal of the American Chemical Society,1986,108(09):2409-2416. |
| [2] | Markowitz M A;Janout V;Castner D G et al.Perforated Monolayers:Design and Synthesis of Porous and Cohesive Monolayers from Mercurated Calix arenes[J].Journal of the American Chemical Society,1989,111(21):8192-8200. |
| [3] | Gusche C D;Iqbal M;Stewarl D .Calixarenes 18 Synthesis Procedures for p-tert-Butylcalix arene[J].Journal of Organic Chemistry,1986,51:742-745. |
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