INTRODUCTION

The presence of mercury in refinery hydrocarbon streams results in detrimental effects, including catalyst poisoning, corrosion, failures in cryogenic equipment, health and safety issues. The Hg content varies in a wide range of less than 0.1 ppb to dozens ppm. Direct mercury determination in crude oil and petroleum products according to ASTM D7622 method can be carried out at the range above 5 ppb. Lumex Instruments proposes the solution for mercury determination in light petroleum products from 0,1 ppb level.