期刊
ANALYST
卷 144, 期 1, 页码 230-236出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8an01747f
关键词
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资金
- University of Sydney
- Westpac Bicentennial Foundation
- Australian Research Council [DP150100649]
Pattern recognition methods such as linear discriminant analysis and principal component analysis are useful tools for the identification of analytes such as metal ions. These typically use a number of distinct molecular probes that exhibit cross-reactivity. Here we report a single molecule that demonstrates varying response in different solvents, therefore enabling the combination of probe and solvent to generate the required array diversity. Seven toxic metal ions were introduced as aqueous samples, and PCA and LDA techniques applied. The array could correctly identify all metals in pure water samples, all metals in doped lake-water samples. Further, we have explored the limit of detection of the system for two metal ions, Cu(ii) and Hg(ii), confirming the promise of the system as a candidate to identify toxic metals in environmental water sources.
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