HDC-UVD-FLD-ICP-MS chromatograms of silver nanoparticles in synthetic surface water.

HDC chromatograms of silver nanoparticles (core diameter: 40 nm) in MQW, MSW, and MSW with 18 mg L⁻¹ of humic acid. a: ¹⁰⁷Ag signal from ICP-MS detector; b: UV-VIS signal (λ_abs = 410 nm); c: fluorescence signal (λ_ext = 430 nm, λ_em = 500 nm). The delay between the UV-VIS detector and the ICP-MS detector was around 4 s. The dwell time of the quadrupole detector was 10 ms for all measured elements.