Here are some guides you can use to help you with how to format your citations in ACS.
No matter the format all citations should tell you:
Citation styles vary in how they present this information, but these elements are always included.
When citing journal articles in APA take the citation elements and arrange them in the following order:
WHO. WHEN. WHAT. WHERE.
Author. (Publication Year). Title of the article. Journal Information. URL
General APA Formatting (Journal article):
Last Name, A.A., Last Name, B. B., & Last Name, C.C. (YYYY). Title of the article. Journal Name, V(I), p-p. http://www.linktothearticle.com