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目的建立流动注射测定水中挥发酚、氰化物和阴离子合成洗涤剂的分析方法。方法利用流动注射分析技术,在线蒸馏、萃取,分析水中挥发酚、氰化物和阴离子合成洗涤剂。结果流动注射分析方法测定水中挥发酚、氰化物和阴离子合成洗涤剂的检出限分别为1.5、0.6和4.5μg/L,样品加标回收率为96.0%~104.0%,相对标准偏差RSD2.11%~3.12%。结论流动注射分析方法与国标比色法相比具有检出限低,精密度好,准确度高等优点。
Objective To establish a method for the determination of volatile phenol, cyanide and anionic detergent in water by flow injection. Methods Flow injection analysis was used to conduct online distillation, extraction and analysis of volatile phenol, cyanide and anionic synthetic detergent in water. Results The limit of detection of 1.5, 0.6 and 4.5 μg / L for the determination of volatile phenol, cyanide and anionic synthetic detergent in water by flow injection analysis was 96.0% -104.0% and the relative standard deviation was RSD2.11 % ~ 3.12%. Conclusion Compared with the national standard colorimetric method, flow injection analysis has the advantages of low detection limit, good precision and high accuracy.