The phenothiazine and hydroxy-naphthyl substituted hydrazide based receptor PHN with dual detecting sites to monitor the Pb²⁺ ions and reversibly HS⁻ ions was designed and well characterized. Both the receptor PHN and PHN + Pb²⁺ ensemble show excellent photo physical properties like superior selectivity and greater sensitivity. In addition, the receptor PHN and PHN + Pb²⁺ ensemble detects and quantifies both the Pb²⁺ ions and HS⁻ ions even in its nanomolar concentration. The pH test also proves that the receptor PHN and PHN + Pb²⁺ ensemble acts as a suitable tool for biological applications with the apt physiological pH range of 4–11. The application on real samples was also done to prove the practical utility of the receptor PHN and PHN + Pb²⁺ ensemble.

吩噻嗪和羟基萘基取代的基于酰肼的受体PHN具有双检测位点，可监测 Pb ²⁺离子和可逆的 HS ^-离子，并得到很好的表征。受体PHN和PHN + Pb ²⁺系综均显示出出色的光物理特性，如卓越的选择性和更高的灵敏度。此外，受体PHN和PHN + Pb ²⁺系综可检测和量化 Pb ²⁺离子和 HS ^-离子，即使在其纳摩尔浓度下也是如此。pH测试也证明受体PHN和PHN+Pb²⁺系综可作为生物学应用的合适工具，其生理 pH 值范围为 4–11。还对实际样品进行了应用，以证明受体PHN和PHN + Pb ²⁺系综的实用性。