The phrase "about certain of" is correct and usable in written English.
It can be used when discussing specific topics or subjects that are being referred to in a general sense.
Example: "The report provides insights about certain of the challenges faced by the industry."
Alternatives: "regarding some of" or "concerning specific".
The fact that Arbus's "life's outline isn't terribly unfamiliar" and that there is "nothing terribly spectacular" about certain of her memories primes us for something "terrifically extraordinary" later.
Playacting had been banned, however, and they wrote to complain tactfully about "certain of their preachers, men very commendable for behavior and learning, and sweet in their sermons, but somewhat too sour in preaching away their pastime".
"I had expressed my personal objections and views to some agency colleagues about certain of those EIT's, such as waterboarding, nudity and others where I professed my personal objections to it.
Still, in interviews with me in the early months of 1994 some members — though they all stressed their admiration for the First Lady's talents and for her success in raising public consciousness about health care — expressed uneasiness about certain of her actions and attitudes.
When they are safely ashore the one single man, Charles, realizes how before, when they were in danger, he could have told some unpleasant truths about certain of them, but now that things are normal again, he would not think of it.
Some skepticism exists about certain of your claims, including this: I, sitting at my desk, certainly had the authorities to wiretap anyone, from you, or your accountant, to a federal judge, to even the President if I had a personal email.
The questionnaire asked general questions about the household, about certain aspects of the health of family members and about their experience of certain types of pollution.
Dr. Braun himself concedes that he maintains a degree of skepticism about certain aspects of classical analysis.
Woolgar [22], for example, shows how design processes reflect a set of assumptions about certain types of user and behavior.
Interviewees regarded these agents as having an important place in in palliative care but expressed a degree of uncertainty about certain aspects of their use.
