Comparison between measuring mercury in water with atomic fluorescence spectrometry and cold atomic absorption spectrometry

It studied the monitoring method and quality control technology of mercury in water determined by atomic fluorescence spectrometry and cold atomic absorption spectrometry,and the quality control index was proposed.The study indicated:(1)The two methods were of comparability;(2)there was no significant correlation between quality control index and the concentration of samples;(3)for standard samples,both method had the same conclusions: RSD≤5%,RSD' ≤10.0%,RE≤±15.0%;(4)the recoveries of standard and actual samples ranged between 85% and 115%,but the recovery of blank samples with atomic fluorescence spectrometry was slightly lower than that of cold atomic absorption spectrometry.