How much does each TOC analysis cost?

A 500ML bottle of concentrated One Reagent stock solution will analyze up to 4,500 vials. At the time of writing this paper, a 500mL bottle of One Reagent concentrated stock solution costs €270, so TOC analysis of 1 vial costs just €0.06. Add to this the cost of the carrier gas at €0.005/vial and the total cost for TOC analysis of one vial costs circa €0.065/vial (6 ½ cents).