Comparison of Two Rhodamine-polyamine Polystyrene Solid-phase Fluorescence Sensors for Hg(II) Detection Based on Theoretical Calculation

Synthesis, structure–fluorescence relationships and density functional theory studies of novel naphthalimide–piperazine–pyridine-based polystyrene sensors for Hg(ii) detection

“…1a-c). [13][14][15] One common feature of these sensors is that they consist of rhodamine derivative as a uorescent probe and carboxylated chloroacetylated or chloromethyl polystyrene microspheres as carriers. The polystyrene microspheres exhibit regular shapes, high chemical resistance, and possess a large amount of Cl or carboxyl groups on the surface for further conducting chemical modications.…”

Preparation and properties of a novel polystyrene solid-phase fluorescence pH sensor based on a naphthalimide derivative

“…The energy gap between the HOMO and LUMO was less for PS-Acyl-II than II. The narrow gap meant a relatively higher reactivity, 30,31 implying that the electronic transfer in PS-Acyl-II was easier and that its interaction with H + demonstrated a relatively higher reactivity than that of II. From this point of view, the immobilization of II on polystyrene microspheres was conducive to improve its sensing performance.…”

Preparation of chitosan-coated polystyrene microspheres for the analysis of trace Pb(ii) ions in salt by GF-AAS assisted with solid-phase extraction

“…27–29 Through chemical modification of PS microspheres, our group has reported several solid-phase fluorescent sensors for rapid detection of Hg( ii ) in food sample. 30–33 According to the color change of microspheres, the visual recognition can be realized. Elution by EDTA or Na 2 S, the regeneration of sensors can be achieved.…”