A live rat would be a good bait. You could go to the pet store and get one - they sell feeder mice. Anything alive is going to be your best bet. Then it's the mink gland which you can obtain through trapping suppliers or when you skin a mink there are little white glands under the tail by the vent and you simply cut those out and you can stick them in a jar with a little glycerin to store.
I assume you want to use raw chicken from a store...which may work but it may take longer to catch it. I would use fresh chicken flesh, rabbit flesh, squirrel flesh, etc....Fresh meaning that it is still bloody and very recently died...not cleaned up, packaged meat from a store.
Live bait will always be your best bet with a mink. You can stick some sardines or whatever you like a few feet from a live bait and everytime they will kill the live bait and not touch the other. I would use a juvie chick...say 2-3 months old...that would work well but I understand this is not something everyone would be able to do so if you have to use the other stuff then it is still OK you might just catch yourself a mink. THEN collect those glands and store them in case you need them for another mink.