Determination of Soil by High Performance Liquid Chromatography Method Validation of 11 Triazine Pesticides
Triazine pesticides are a commonly used weed control agent with advantages such as broad-spectrum and high efficiency,which can effectively control the growth of weeds and harmful plants in soil.However,the chemical composition of such agents is unstable,easily remaining in the soil and causing pollution to soil,air,water sources,etc,causing irreversible damage to the ecological environment.A soxhlet extraction solid phase extraction/high-performance liquid chromatography method was established,and the analysis method for the soil part in the environmental detection industry standard Determination of 11 Triazine Pesticides in Soil and Sediments by High Performance Liquid Chromatography(HJ 1052-2019)was validated.Through experimental testing,the gradient elution program was optimized.According to the analysis method,the data showed that the 11 triazine pesticides had good linearity in the mass concentration range of 1.0 to 50.0 mg·L-1,with a correlation coefficient R in the range of 0.999 4 to 0.999 7.The detection limit of the method was 0.02 to 0.05 mg·kg-1,and the spiked recovery rate of the samples was 96.6％to 104.0％,with a relative standard deviation of 2.7％to 3.9％.Therefore,the verification results of this method indicated that our laboratory had the ability to carry out testing activities according to standard method requirements.
万方数据
维普
