专利名称：Transition metals as tracers of chemical
treatment
发明人：Hoots, John E.,Johnson, Donald A.,Banks,
Rodney H.
申请号：EP90301982.6申请日：19900223公开号：EP0385678A2公开日：19900905
摘要：Methods for utilizing transition metals as tracers in aqueous liquid systems areprovided by this invention. Transition metals with low background levels in system watersare identified as preferred when soluble in said aqueous liquid systems. The transitionmetals show low levels of deposition on equipment scale and provide reliableinformation as to the process history of the liquid systems.
申请人：NALCO CHEMICAL COMPANY
地址：One Nalco Center Naperville Illinois 60563-1198 US
国籍：US
代理机构：Harrison, David Christopher
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