Chromotropic acid-functionalized polyure
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Valfredo Azevedo Lemos; Luana Novaes Santos; Ana Paula Oliveira Alves; Graciete
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Article
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2006
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John Wiley and Sons
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English
⚖ 447 KB
## Abstract A chromotropic acid‐functionalized polyurethane foam has been developed for use in an on‐line preconcentration system for cobalt and nickel determination. The packing material was prepared by covalent coupling of chromotropic acid with the polyurethane foam through an azo group. Co and