Determination of Heavy Metals in Sediment by High Pressure Sealed Vessels Assisted Digestion-inductively Coupled Plasma Mass Spectrometry

[Objective] The aim was to establish a method to determine the concentration of heavy metals in sediment. [Method] The concentration of chromium, manganese, nickel, copper, strontium, molybdenum, cadmium, barium in sediment were determined by high pressure sealed vessels assisted digestion-inductively coupled plasma mass spectrometry with optimized experimental conditions. [Result] The standard curve revealed good linearity and the detection limits of all elements from 0.002 to 0.198 μg/L. The RSD of the filter samples were all less than 1.5%, the recoveries from 96.4% to 104%. [Conclusion] It is a good method to determine the concentration of heavy metals in sediment.