We have prepared Schiff base functionalized 1,2,4-triazole and pyrene derivative for selective, sensitive, and naked eye colorimetric detection of Cu²⁺ in the mixed organic- aqueous media. Amongst the 18 different metal ions studied for absorption and fluorescence titration, only Cu²⁺ ion encourages the modification in spectral properties of Schiff base functionalized 1,2,4-Triazole and Pyrene Probe. The stoichiometric ratio of the TP-Cu²⁺ complex was determined to be 2:1 according to Job’s plot. The lower detection limit estimated for Cu²⁺ is 0.234 nM which shows excellent sensitivity and selectivity of the present analytical method towards detection of Cu²⁺ ion in the mixed organic-aqueous media. The present approach has been successfully utilized for the quantitative determination of Cu²⁺ ion from environmental aqueous solution.

我们制备了席夫碱功能化的 1,2,4-三唑和芘衍生物，用于选择性、灵敏和肉眼比色检测混合有机水介质中的 Cu ²⁺。在研究用于吸收和荧光滴定的 18 种不同金属离子中，只有 Cu ²⁺离子促进了席夫碱功能化 1,2,4-三唑和芘探针的光谱特性的改变。^{根据乔布图，TP-Cu 2+}络合物的化学计量比确定为2:1。^{Cu 2+}的估计检测下限为 0.234 nM，这表明本分析方法对检测 Cu ^{2+具有出色的灵敏度和选择性}混合有机-水介质中的离子。本方法已成功用于环境水溶液中Cu ^{2+离子的定量测定。}