Trace elements analyses have becoming one routine practice in petroleum industry. Different approaches could be found in the literature, being the most popular acid digestion methods and more recently, direct injection of organic solutions on ICP-OES and ICP-MS instruments. This particular approach needs to considerer different matrix and spectral interference, proper selection of solvent as well as the nebulization devices. The present work is focused on running direct dilutions of crude oils with wide range on API, dissolved in an organic solvent such as o-xylene and analyzing them on both ICP-OES and ICP-MS. We set out to assess the data accuracy, standard deviation, and recovery between the two instruments particularly in the region of ppm to ppb range

Crude oils analysis by ICP-OES and ICP-MS via direct dilution

248th National Meeting (2014)

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