紫外分光光度法和二阶导数光谱法测定水样中的敌草快  

Determination of diquat in water samples by ultraviolet spectrophotometry and second derivative spectrometry

作　　者：高利娜[1] 刘俊亭[1] 霍韬光[2] 

机构地区：[1]中国医科大学药学院,辽宁沈阳110001 [2]中国医科大学公共卫生学院,辽宁沈阳110001

出　　处：《中国法医学杂志》2014年第2期131-133,共3页Chinese Journal of Forensic Medicine

摘　　要：目的建立测定水样中的敌草快的分析方法。方法采用紫外分光光度法和二阶导数光谱法测定水样中的敌草快。结果紫外分光光度法直接测定水样中的敌草快,在0.1~50μg/mL范围内线性关系良好,日内,日间精密度均小于2.6%。二阶导数光谱法在0.1~10μg/mL线性关系良好,日内、日间精密度均小于1.29%。结论该两种方法快速、简单、灵敏,适用于环境监测工作。Objective To establish methods for quantitative determination of diquat in water samples. Methods Ultraviolet spectrophotometry and second derivative spectrometry methods were developed and validated to analyze the diquat residues in water samples. Results For ultraviolet spectrophotometry and second derivative spectrometry methods,the calibration graphs were linear in the ranges of 0. 1 ~ 50 μg / mL and 0. 1 ~ 10 μg / mL,the relative standard deviation values for both intraday and interday precision were less than 2. 6% and 1. 29%,respectively. Conclusion Two methods studied were rapid,simple,sensitive and suitable for the environmental monitoring.

关 键 词：法医毒物分析 敌草快 紫外分光光度法 二阶导数光谱法 

分 类 号：D919[医药卫生—法医学]