In the methanolic solution, the selectivity of rhodamine hydrazide (RhH) was simply switched from Cu2+ to Hg2+ ions. For the optimal absorption of RhH onto a solid-phase membrane, pure methanol was used to dissolv...In the methanolic solution, the selectivity of rhodamine hydrazide (RhH) was simply switched from Cu2+ to Hg2+ ions. For the optimal absorption of RhH onto a solid-phase membrane, pure methanol was used to dissolve RhH prior to the impregnation. Of solid-phase membranes tested, the filter paper was chosen due to its cost-effectiveness and good detection limit of Hg2+ ion. The detection limit of the RhH impregnated filter paper for the detection of Hg2+ ion was determined to be under 2 ppm both fluorescent and colorimetric detection.展开更多
文摘In the methanolic solution, the selectivity of rhodamine hydrazide (RhH) was simply switched from Cu2+ to Hg2+ ions. For the optimal absorption of RhH onto a solid-phase membrane, pure methanol was used to dissolve RhH prior to the impregnation. Of solid-phase membranes tested, the filter paper was chosen due to its cost-effectiveness and good detection limit of Hg2+ ion. The detection limit of the RhH impregnated filter paper for the detection of Hg2+ ion was determined to be under 2 ppm both fluorescent and colorimetric detection.