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. 2024 Aug 22;14(36):26648–26658. doi: 10.1039/d4ra04961f

Fig. 6. (a) UV-vis spectra of CS/AuNPs@TDA in the presence of eight concentrations of As3+. (b) Plot of the absorbance ratio (A645/A525) vs. As3+ concentration from 0.01 to 5.00 mg L−1. (c) Linear calibration plot for the As3+ concentration range of 0.01–1.00 mg L−1 and the corresponding color response.

Fig. 6