First of all submitting articles for Page Rank is futile unless you have earth-shattering news.
Who cares about duplicate content and what effect it will have on your website except you.
Search engines rely on authority, if you have a lowly blog, don't submit your article, keep it on your own turf.
If you really have something you want to share, that's great, submit and submit again.
If you are looking for long term Google SERPS forget it, this is short term at best.
If you stay within the boundaries of breaking news, you might get digged, otherwise, it's spam pure and simple and everyone knows it, including Googlegbot

Work on improving your blog or website and the links are sure to follow. Try to force it with crap inj the end nothing.

Search engines long ago recognized article directories as nothing more than a bloated link farm.
Hope this helps, Dan