Except with respect to claims coming within theprovisions of article 10 of title 24, C.R.S., the board of regents shall audit all claims against the university, and the president shall draw all warrants and checks for approved claims; but before payment such warrants and checks shall be countersigned by the secretary, who shall keep a specific and complete record of all matters involving the expenditure of money, which record shall be submitted to the board of regents at each regular meeting of the same.