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研究了在盐酸介质中以KBrO3-KBr紫外分光光度法测定痕量苯酚的条件,在浓度为0.6mol/LHCl,3×10-5mol/LKBrO3,5×10-4mol/LKBr,6×10-4mol/LKI溶液中测定苯酚时,线性范围为0.10~2.5mg/L,表观摩尔吸光系数为1.89×104L·mol-1·cm-1,Sandel指数为4.98μg/cm2。本法已用于测定废水中苯酚。
The conditions for the determination of trace phenol by KBrO3-KBr UV spectrophotometry in hydrochloric acid medium were studied. The conditions for the determination of trace phenol were as follows: 0.6mol / LHCl, 3 × 10-5mol / L KBrO3, 5 × 10-4mol / L KBr, 6 × 10- The linear range was 0.10-2.5mg / L, the apparent molar absorptivity was 1.89 × 104L · mol-1 · cm-1, the Sandel index was 4.98μg / cm2 . This method has been used to determine phenol in wastewater.