Metals in Crude Oils and Petroleum Products

The list of metals present in major or trace level in petroleum products can vary from alkali, alkaline, transition and refractory types depending on the source and refining 

The composition of crude oils differs in different parts of the world as does the type of metal present and concentration. The different metal contents can be useful for identification of the source of oil and also help in determining those responsible as part of forensic and environment pollution investigations. Wear metals in lubricating oil are also monitored to provide early detection and correction of major problems in the various machine parts. 

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