In this case you are doing it backwards. You should post this article to your own site first so that the search engines log your site as being the first instance of this article. Then wait days or a week or so before re-distributing it to article directories (if you need to). And then the battle for SERP domination begins for this article where the SEO of the pages comes into play (the content of the page is more than just the article).
I write an article which I then publish some of the directories, then I put the article on my website/blog and post it to a few forums.