Determination of Al£¬Si£¬V in Residual Fuel Oil by DUO/ICP-AES with Microwave Ashing Technology

KeyWord:DUO-ICP-AES  microwave ashing  residual fuel oil

Abstract:

      A method for the determination of Al£¬Si£¬V in residual fuel oil was developed by DUO-ICP-AES with microwave ashing technology.The operative conditions of DUO-ICP-AES were optimized.Under the optimal conditions£¬the calibration curve was linear in the range of 0-25ª±0 mg/L with correlation coefficients£¨r£© of 0ª±999 70-0ª±999 99.The detection limits ranged from 0ª±005 mg/L to 0ª±050 mg/L.The spiked recoveries were in the range of 88%-97% with RSDs of 1ª±0%-3ª±5%.The method was simple and rapid£¬and could be applied in the routine analysis of Al£¬Si£¬V in residual fuel oil.