Copper Ion Detection Data from Colorimetric and Fluorescent Probe Study

Data from Dugang Chen's 2020 research paper details the synthesis and performance of a dual-channel chemical probe for copper ion detection. The dataset includes measurements from colorimetric and fluorescent sensing experiments in solution and on paper substrates, with a reported binding constant of 3.6×10⁴ M⁻¹ and a visual detection limit as low as 10⁻⁶ M.

Use Cases

• Analyze the correlation between Cu²⁺ concentration and the colorimetric shift from purple-red to yellow in solution for calibration curve development.
• Model the fluorescence quenching behavior upon Cu²⁺ addition to establish sensitivity and selectivity profiles against other ions.
• Validate the performance of paper-strip sensors by comparing detection limits from solution-based and solid-state substrate experiments.

Strengths

• Data is derived from a peer-reviewed scientific study with a precisely calculated binding constant of 3.6×10⁴ M⁻¹.
• Includes results from dual-channel detection (colorimetric and fluorescent) and a practical application on a paper-strip substrate.
• Reports a specific, low detection limit of 10⁻⁶ M for naked-eye observation on the fabricated paper sensor.

Limitations

• Dataset scope is limited to the specific probe molecule (BT) and its interaction with Cu²⁺, not generalizable to other ions or sensors without further study.
• Experimental data is confined to a specific buffer condition (ethanol/HEPES at pH 7.2), limiting direct applicability to other environmental or biological matrices.
• The raw, tabular experimental data (e.g., spectral readings, concentration series) is not directly provided in the description, only summarized results.

Provenance

Source

Dryad digital repository, from the research of author Dugang Chen.

Collection Method

Data generated from laboratory synthesis and spectroscopic analysis of a custom chemical probe.

Freshness

Last updated in 2020.