论文部分内容阅读
建立催化热解-AAS测定环境水及土壤样品中总汞的方法。采用DMA80型直接测汞仪测定水样及土壤中总汞含量,并采用有证标准物质验证方法的准确度、精密度。方法的线性范围为:低浓度系列0.01—0.3μg/mL,线性方程y=0.0116x+0.0012,R2=0.9997;高浓度系列0.50—4.00μg/mL,线性方程y=0.001x+0.0034,R2=0.9996,RSD为1.1%—1.3%。催化热解-AAS测定环境水及土壤样品中的总汞含量,方法简便,灵敏度高,适合环境水及土壤样品中总汞的测定。
To establish a catalytic pyrolysis-AAS method for determination of total mercury in environmental water and soil samples. The DMA80 direct mercury analyzer was used to determine the total mercury content in water sample and soil, and the certified reference material was used to verify the accuracy and precision of the method. The linear range of the method is: 0.01-0.3 μg / mL for the low concentration series, linear equation y = 0.0116x + 0.0012, R2 = 0.9997; for the high concentration series 0.50-4.00 μg / mL for the linear equation y = 0.001x + 0.0034, 0.9996, RSD 1.1% -1.3%. Determination of total mercury in environmental water and soil samples by catalytic pyrolysis-AAS method is simple, sensitive and suitable for the determination of total mercury in environmental water and soil samples.