CAJ | 학술논문

This study mainly applied one kind oftechnologies to determine the methylmercury in the tuna tissue with high performance liquid chromagraphy-inductively coupled plasma nlass spectrometry.We choosed the optmaum conditiom including that the mobile phase Was water with 5% methanol,2-mercaptoethanol,0.06mol/Lammomum acetate and pH6.8.The sample amount was 1OOuL and the flow rate was 0.4mL/min.The optimum checking conditions is that RF power was 1500W,integral time was 0.3s sampling depth Was 8.0mm,velocity of carrier gas Was 0.75L/min and velocity of auxiliary gas Was 0.40L/min.In this con~tiom.the calibration CUrVe was linear when the concentra tions od methylmercury was in the range of 0-4ug/mL(r=0.9996),the detection limit can achieve 9ng/L,RSD is 8.2%,and the addition recovery is 75%-97%.The results show this method is simple,rapid and sensitive and can be used for the daily analysis of tuna samples.