The phrase "as mentioned in the introductory section" is correct and usable in written English.
You can use it to refer back to information that was previously stated in the introductory part of a document or text.
Example: "The findings of this study align with the theories as mentioned in the introductory section."
Alternatives: "as noted in the introduction" or "as outlined in the opening section."
As mentioned in the introductory section, the nitrogen heterocycle pyrrole occurs in bone oil, in which it is formed by the decomposition of proteins upon strong heating.
As mentioned in the introductory section, research in this field has been limited so far to the BMSF membranes.
As mentioned in the introductory section, various aspects of context such as speaker, language, etc. can be expected to remain constant over multiple short-time segments, which can be exploited to improve estimation accuracy.
As mentioned in the introductory section, the protonation state of His523 responsible for activity remains a subject of debate.
As mentioned in the introductory section, these are variable factors which will change during the design process, in order to attain the optimal solution.
As mentioned in the introductory section, the effective use of prior knowledge is crucial to overcome the lack of quantity or quality of data.
As mentioned in the introductory sections, our goal is to study the usability of solo/accompaniment separation in music education and practice applications.
As mentioned in the introductory part about interoperability, data can be found in many different formats (or file types).
As mentioned in the introductory part of this paper, expert judgement is not always better than amateur judgement, as a 1980 study by Tetlock shows in which 27.451 predictions had been evaluated by 284 academics.
As we mentioned in the introductory section, statistical analysis is carried out using Global Entrepreneurship Monitor data (GEM).
Thus, the analysis of the Br ønsted data supports the Se as an electrophile model mentioned in the introductory section.
