Comprised vs. Comprised of
Academic writing needs to be concise. Academic or scientific writing should not contain extra words and fancy expressions just to make it lengthy. Redundancy deteriorates the meaning of the sentence. The most common error with respect to redundancy is the use of prepositions like “of,” “about,” etc., after certain verbs, although they are not required. A few of such verbs include comprise, discuss, and despite. Let us try to understand this better with the help of an example.
Incorrect: The reagents used comprised of sodium chloride and potassium hydroxide.
Correct: The reagents used comprised sodium chloride and potassium hydroxide.