A fluorescent and colorimetric sensor based on rhodamine 6 g (RD6g) was designed, synthesized, and characterized using microwave irradiation. The sensing behavior of this compound was studied by UV–visible and fluorescence spectroscopy. Sensor RD6g exhibits a high selectivity and an excellent sensitivity and is a dual-responsive colorimetric and fluorescent Hg²⁺-specific sensor in aqueous buffer solution. Mercury ions give rise to the development of a very fluorescent ring-open amide spirolactam system. The detection limit for Hg²⁺ was found to be 1.2 × 10⁻⁸ M. The binding ratio of RD6g-Hg²⁺ complex was determined to be 1:1 according to the Job’s plot. The reversibility of RD6g‧Hg²⁺ complex has been achieved with CN⁻ anions. The test strip based on RD6g was developed, which could be used as a suitable and methodical Hg²⁺ test kit.

设计、合成了基于罗丹明 6 g ( RD6g ) 的荧光和比色传感器，并使用微波辐射对其进行了表征。通过紫外可见和荧光光谱研究了该化合物的传感行为。传感器RD6g具有高选择性和出色的灵敏度，是一种在水性缓冲溶液中具有双响应比色和荧光 Hg ^{2+特异性传感器。}汞离子引起了非常荧光的开环酰胺螺内酰胺系统的发展。^{发现Hg 2+}的检测限为1.2 × 10 ^-8  M。根据乔布图确定RD6g-Hg ²⁺复合物的结合比为1:1。RD6g‧Hg的可逆性²⁺络合物已与CN ^-阴离子实现。开发了基于RD6g的试纸，可作为一种合适的、有条理的Hg ²⁺检测试剂盒。