摘要
用二氯甲烷作为洗脱溶剂通过固相萃取的方法对水中的甲萘威、阿特拉津和苯并[a]芘进行同时萃取浓缩并转溶成甲醇溶液后,借助高效液相色谱紫外检测器(DAD)在220 nm波长下,结合荧光检测器(FLD)在激发波长为290 nm,发射波长为430 nm下进行同时测定。甲萘威和阿特拉津在0.03 mg/L^1.00 mg/L,苯并[a]芘在0.001 mg/L^0.100 mg/L范围内线性良好,检出限分别为0.010 ug/L,阿特拉津为0.009 ug/L,苯并[a]芘为0.0006 ug/L,空白水样加标平均回收率为70.2%~81.4%,平行测定3次的RSD<5%。
A method was established for simultaneous extraction and determination of carbaryl, atrazine and benzoapyrene in water samples by solid phase extraction （SPE） and high performance liquid chromatograph （HPLC） using methanol-wa- ter as the mobile phase with gradient elution. The determination was made both on a diode array detector （DAD） at the wave length of 220 nm and on a Fluorescence Detector （FLD） at the excitation wave length of 290 nm and emission wave length of 430 nm. The results indicated that the good linear ranges were 0.03 mg/L - 1.00 mg/L for carbaryl and atrazine and 0.001 mg/L - OAO0 mg/L for benzoapyrene with r = 0.9999. The determination limits of the method were 0.009 ug/L, 0.010 ug/L and 0.0006 ug/L for carbaryl, atrazine and benzoapyrene, respectively. The average recovery rate was 70.2% - 81.4%, and the relative standard deviation was less than 5%.
出处
《福建分析测试》
CAS
2017年第2期14-18,共5页
Fujian Analysis & Testing
关键词
甲萘威
阿特拉津
苯并[A]芘
固相萃取
高效液相色谱
水质
Carbaryl, Atrazine, Benzoapyrene, solid phase extraction, High performance liquid chromatography, waterquality
