The phrase "a separate expert" is correct and usable in written English.
It can be used when referring to an expert who is distinct or different from others in a particular context or situation.
Example: "For this project, we will consult a separate expert to ensure we have a diverse range of opinions."
Alternatives: "an additional expert" or "a distinct expert".
Steven G. Hentges, the executive director of the American Chemistry Council's polycarbonate group, takes issue with that report's worries and points to a separate expert panel report published by the United States Department of Health and Human Services last month.
A separate expert panel evaluated the degree to which each test met specific selection criteria.
A separate expert panel was convened to estimate the time needed to start or continue to follow patients using continuous subcutaneous insulin infusion (CSII) or the subset of type 1 diabetic patients using a continuous glucose-monitoring system (CGM) throughout 1 year.
In two previous letters, federal officials challenged a separate F.B.I. expert's analysis of hair fragments, saying the expert could not have determined that the hairs were from an African-American, as he testified.
In my experience, it is indeed often challenging to clearly separate "expert" and "expertise" throughout a discussion.
A separate international expert panel has recommended stratification according to region for global trials but discouraged further stratification according to etiology [ 7].
Quality effects were estimated based on separate expert interviews.
Two separate expert panels reviewed this research and concluded that both the experimental design and conduct of the experiments were fatally flawed, and that no scientific conclusion should be drawn from the work.
Lymphoma cases were diagnosed according to the criteria from the new World Health Organization and classified by two separate expert hematopathologists.
The development of the guidelines, which specified any treatment priorities, were carried out by separate expert groups for each medical field, including clinicians, specialized practitioners, general practitioners (GPs) and representatives from particular patient organizations, as relevant [ 14].
In a separate session, experts from Toyota Research Institute, the global automaker's research and development arm, will take a wider view on robotics, detailing how companies should consider large-scale automation and human-machine interaction as they deploy autonomous machines.
