EXHIBIT 23.1


                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated February 15, 2002 relating to the
financial statements, which appears in O.I. Corporation's Annual Report on Form
10-K for the year ended December 31, 2001.


/s/ PricewaterhouseCoopers LLP

PricewaterhouseCoopers LLP


Houston, Texas
June 18, 2003