𝔖 Bobbio Scriptorium
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A fiber optical sensor for heavy metal ions based on immobilized xylenol orange

✍ Scribed by Klimant, Ingo ;Otto, Matthias

Publisher
Springer-Verlag
Year
1992
Weight
322 KB
Volume
108
Category
Article
ISSN
0344-838X

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## Abstract A heterogeneous β€œnaked‐eye” colorimetric and spectrophotometric cation sensor, SNT‐**1**, was prepared by immobilization of the azo‐coupled macrocyclic receptor **1** on a silica nanotube (SNT) via sol–gel reaction. The optical sensing ability of SNT‐**1** was studied by addition of met