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Chemical structures and the analyte response of the individual probes: a Ir(CS)2(acac) embedded in poly(styrene-co-divinylbenzene) beads, obtained at 20 °C; b HPTS(TOA)3 + TOAOH in EC49, obtained at 25 °C; c Cr-YAB particles dispersed in hydrogel D4; d SNARF-DE in hydrogel D4, obtained at 25 °C
