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1.发明申请公开(公告)号：US20210156806A1
公开(公告)日：2021-05-27
申请号：US16633349
申请日：2018-08-06
Applicant: INNOSPEC LIMITED
Inventor： Philip MALTAS
Abstract: A method for determining the presence of an acidic sulfide species in a liquid sample of an industrial or environmental material. The method includes the step of contacting the sample or an extract thereof with a composition including a metal complex dye compound in which the electromagnetic absorption spectrum of the metal complex dye compound changes upon reaction with an acidic sulfide species.
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