Determination of Benzene Series Compounds in Yellow River Water
This study employs gas chromatography to simultaneously determine the levels of benzene,toluene,and xylene in Yellow River water.Using nitrogen as the carrier gas,a capillary column,and an ECD detector,the flow rate was set at 20 mL/min.The method utilizes a headspace sampler for direct injection to measure benzene series compounds in Yellow River water.Under the chromatographic conditions used,the separation of benzene series components was satisfactory,with correlation coefficients of the linear equations reaching 0.997.The detection limits for benzene,toluene,and xylene were 0.0061 mg/L,0.0067 mg/L,and 0.021 mg/L,respectively.The average spiked recovery rates ranged from 92.3%to 97.6%.This method is highly sensitive,simple,and accurate,making it suitable for determining the content of benzene series compounds in surface water.
Yellow River watergas chromatographybenzene series compoundsdetermination
NETL
NSTL
万方数据
