Citation: YU Guang-Qin, YUAN Ze-Li, YANG Jie, WU Qing, HU Qing-Hong, ZHANG Ming-Qin, JIANG Bo, WEI Gang. Synthesis and Application of a Spirobenzopyran-based Probe for Detection of Cu2+ and Hydrazine[J]. Chinese Journal of Analytical Chemistry, ;2016, 44(10): 1495-1503. doi: 10.11895/j.issn.0253-3820.160394
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A spirobenzopyran-based probe (L) for the detection of Cu2+ and hydrazine was synthesized by using 4-methyl-2,6-diformylphenol and 1,3,3-trimethyl-2-methyleneindoline, and its structure was characterized by 1H NMR, 13C NMR, FT-IR and H RMS(ESI-MS). The recognition properties of the probe L with nineteen kinds of metral ions, eighteen kinds of anion ions and nine kinds of amine compounds had been investigated in Tris-HCl(pH=7.40)-ethanol solution (1:1, V/V) by UV-Vis, fluorescence spectrophotometry, 1H NMR titration and MS. The results showed that the probe L exhibited higher selectivity and sensitivity towards Cu2+ and hydrazine over other interfering objects in Tris-HCl(pH=7.40)-ethanol solution(1:1, V/V), and the color changes of L caused by Cu2+ and hydrazine could be observed by naked eyes. Thus, L could be loaded as test paper for detecting Cu2+ at μmol/L level in water solution by naked eyes. Notably, probe L could be used to detect hydrazine in liquid and gas state with different concentrations by detecting the color changes from readily prepared TLC plates. On the basis of this, the probe L was used in the determination of Cu2+ in the water and drug samples with recoveries of 83.5%-111.0% and RSD of 4.0%. The results showed that this probe L had potential applications in the monitoring of environmental pollution and the analysis of Cu2+ and hydrazine in drug.
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Keywords:
- Spirobenzopyran,
- Probe,
- Copper(Ⅱ),
- Hydrazine,
- Synthesis
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