CAJ | 학술논문

在紫外光照射下五氯酚能光解生成酸性产物，导致溶液酸度改变。该文以荧光素为探针，基于荧光素对溶液酸度的敏感性，提出了一种荧光探针检测五氯酚的方法。该方法无需对五氯酚进行荧光标记，简化了检测过程。在最优条件下，检测限为2．0x10^-9mol／L，线性范围为5．0x10^-4-5．Oxl0^-9mol／L。光照条件下不能光解或者光解产物不能引起溶液酸度变化的物质不干扰测定。
재자외광조사하오록분능광해생성산성산물，도치용액산도개변。해문이형광소위탐침，기우형광소대용액산도적민감성，제출료일충형광탐침검측오록분적방법。해방법무수대오록분진행형광표기，간화료검측과정。재최우조건하，검측한위2．0x10^-9mol／L，선성범위위5．0x10^-4-5．Oxl0^-9mol／L。광조조건하불능광해혹자광해산물불능인기용액산도변화적물질불간우측정。
Pentachlorophenol （PCP） can be photolysed under ultravioh（UV） light in aqueous resulting in a pH change. The pH change can be sensitively indicated by fluorescein as the fluorescence intensity of fluorescein is pH-dependent. Based on this, fluorescence detection of pentachlorophenol is proposed without using fluorescence label. Under the optimal conditions, a detection limit of 2.0 x 10-9 mol/L is achieved with a linear range of 5.0 x 104- 5.0 x 10-9 mol/L. Compounds which could not change the pH of the solution during illumination process, such as phenol, chlorphenol and dichlorphen show little interferences on the detection.