Most inspection gloves will probably have seams on them. I suspect a seamless glove might be hard to source in a lightweight cotton. These gloves have seams but the lightweight and medium weight are thin enough that you may not notice. A correct fit is probably the key.
http://www.saraglove.com/Men-s-100-C.../80-1315-p.htm
Alternatively, you might want to try a butyl glove. They're made to fit tight and you don't have to worry about seams. Might help you get a better grip too. You can get those by the box at Home Depot for a few dollars. I'm not sure there is any risk of chemical transfer with those. I suspect there wouldn't be, but I'm not positive.