The Determination and Analysis of N-Nitroso-Compounds of Pickles in Wuwei City of Gansu Province

The contents of nitrate, nitrite and N-nitroso-compounds(NDMA, NDEA) in pickles were measured by high-performance-capillary-electrophoresis(HPCE) and gas-chromatography-mass analyzer respectively. The highest content of nitrate, nitrite, NDMA, NDEA in the samples were 817.85 mg/kg, 0.144 5 mg/kg,47.78 μg/kg and 36.32 μg/kg respectively and the contents of nitrate, nitrite in gastric juice of routine pickle vegetable take-in population is higher than that of rare take-in population. The reason of high incidence of gastric cancer in this city may be associated with eating pickles.