水中总氰、总酚和阴离子洗涤剂的流动注射分析法  

Determination of total cyanide, phenol and anionic detergent in water by flow injection analysis

作　　者：张宏斌[1] 张子磊[1] 夏环[1] 袁华平[1] 

机构地区：[1]昆山市疾病预防控制中心,江苏昆山215300

出　　处：《现代预防医学》2014年第7期1284-1285,共2页Modern Preventive Medicine

摘　　要：目的 建立测定水中总氰化物、总挥发性酚和阴离子洗涤剂的流动注射分析法。方法 用SKALAR San＋＋仪器在线蒸馏，异烟酸-巴比妥酸比色测定水中总氰，4-氨基安替比林显色法测定水中的挥发酚，在线萃取亚甲兰比色测定阴离子洗涤剂。结果 总氰化物线性范围为10～80 μg/L，r＝0.999 8；检出限为1.72 μg /L，RSD＝2.10%，加标回收率为96.1%～103.1%。总酚线性范围为2～50 μg/L，r＝0.999 1；检出限为0.22 μg/L，RSD＝2.57%，加标回收率为98.8%～104.8%。阴离子洗涤剂线性范围为20～500 μg/L，r＝0.998 7；检出限为9.1 μg/L，RSD＝6.10%，加标回收率为91.2%～105.5%。结论 该方法操作简便，较标准方法更灵敏。Objective To establish a method of flow injection analysis for determination of cyanide, phenol and anionic detergent in water. Methods SKALAR San＋＋ analyzer on-line cyanide distillation was used. Conducted 4-pyridine carhoxylie acid barbituric acid colorimetric analysis to determine total cyanide, and 4-amino-2, 3-dimethyl-l-phenyl-3-pyrazolin-5-one colorimetric analysis to determine total phenol, and on-line extraction to determine anionic detergent. Results The linear range for total cyanide was 10-80μg/L, with r= 0.999 8. Detection limit was 1.72μg/L and the recovery rate was 96.1%-103.1%. The linear range for total phenol was 2-50μg/L with r= 0.999 1. The detection limit was 0.22μg/L and the recovery rate was 98.8%-104.8%. The linear range for anionic detergent was 20-500μg/L, with r=-0.998 7. The detection limit was 9.1μg/L, RSD=6.10% and the recovery rate was 91.2%-105.5%. Conclusion The method is simple and sensitive, compared with standard method.

关 键 词：流动注射 总氰化物 总挥发性酚 阴离子洗涤剂 在线分析 

分 类 号：R113[医药卫生—公共卫生与预防医学]