Determination of Atrazine in water by gas chromatography with orthogonal test optimization of liquid-liquid extraction
A new method was established to detect Atrazine in water by liquid-liquid extraction gas chromatography.A complete orthogonal test with three factors and three levels was designed and then the range analysis was used to optimize the liquid-liquid extraction conditions.The analysis effect of the method was evaluated from the limit of detection,precision,accuracy,standard curve,and the determination results of real samples.The results showed that the linearity of atrazine was good in the range of 0.1～1.0mg·L-1,the correlation coefficient was 0.9999.The recoveries were 96.1％～99.1％with relative standard deviation of 4.3％～6.0％.The limit of detection was 0.02μg·L-1,and the limit of quantification was 0.08pg·L-1.This method is simple to operate and has good accuracy.This method is suitable for the determination of Atrazine in water.
Atrazineliquid-liquid extractiongas chromatographyorthogonal test
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