Based on the lack of determination of volatile phenols in seawater by Water Quality-Determination of volatile phenols-Flow injection analysis(FIA)and 4-AAP spectrophotometric method(HJ 825-2017)and the shortcomings of the traditional national standard method of the Specification for marine monitoring-Part 4:Seawater analysis(GB 17378.4-2007),such as cumbersome operation,low efficiency and poor accuracy,a flow injection analysis method for the determination of volatile phenols in seawater was established by eliminating the interference of seawater salinity matrix,optimizing reagent conditions,optimizing instrument parameters and testing method performance indicators.The experimental results showed that the determination range of the analytical method was 0.00～100.00 μg/L,the correlation coefficient was 0.999 9,the detection limit was 0.44 µ g/L,the lower limit of determination was 1.76 µ g/L,the recoveries of the samples ranged from 96.9％to 101.0％,the RSD(n=6)was 0.34％-2.57％,and the relative error range of the certified reference material was-2.30％--0.09％.The linearity,accuracy,precision and detection limit of the method all met the requirements of the Standard for Seawater Quality(GB 3097-1997)and could meet the needs of large quantities of sample analysis.
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维普
