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本文报道了以０．１ｍｏｌ／Ｌ氢氧化钠为稀释液，用紫外光谱在２３５ｎｍ波长处检测废水中酚的含量．结果与以Ｋ３〔Ｆｅ（ＣＮ）６〕为氧化剂的的４－氨基安替比林分光光度法相比，本方法具有更高的灵敏度（摩尔吸光系数ε＝１．７×１０－５Ｌ／（ｍｏｌ·ｃｍ）．是氨基安替比林分光光度法灵敏度的２倍）．酚氢氧化钠溶液浓度在０．８～６．４μｇ／ｍＬ范围内与吸光度呈良好的线性关系（ｒ＝０．９９９１）；回收率为９９．７５～１０１．８８％，相对标准偏差ＲＳＤ≤０．１２％（ｎ＝９），证明方法的准确度与精密度令人满意．该法不需要特殊试剂，所以简便快速，同时应用微机对数据进行了最小二乘法处理和回归分析及结果计算，避免了通过标准曲线计算“废水”中酚含量的麻烦和引入的人为误差
In this paper, 0.1 mol / L sodium hydroxide was used as a diluent to detect the content of phenol in waste water by UV spectroscopy at 235 nm. Results Compared with 4-aminoantipyrine spectrophotometry using K3 [Fe (CN) 6] as oxidant, the proposed method has higher sensitivity (molar absorptivity ε = 1.7 × 10-5L / (mol · Cm), which is twice the sensitivity of aminoantipyrine spectrophotometry). The concentration of phenol and sodium hydroxide in the range of 0.8 ~ 6.4μg / mL and absorbance showed a good linear relationship (r = 0.9991); recovery was 99.75 ~ 101.88%, the relative standard deviation of RSD ≤ 0.12% (n = 9), which proves the accuracy and precision of the method are satisfactory. The method does not require special reagents, so simple and quick, at the same time the application of computer data by least squares processing and regression analysis and calculation of the results to avoid the standard curve of the “wastewater” in the phenol content of the trouble and the introduction of human error