Analysis of Nitrate Contents of Agricultural Products by HPLC-UV
2010
Jo, S.A., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea | Kim, E.H., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea | Han, S.H., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea | Yuk, D.H., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea | Kim, J.H., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea | Park, S.G., Kangnam Agro-marin Products Inspection Center, Research Institute of Health and Environment, Seoul, Republic of Korea
A total of 550 samples were analysed for nitrate contents using HPLC-UV. Nitrate contents of leaf vegetables were higher than those of root vegetables and fruit vegetables. The average nitrate content of the radish leaves (4875.8 mg/kg) was the highest, followed by marsh mallow (4711.7 mg/kg), crown daisy (4546.9 mg/kg) and vitamins (4239.5 mg/kg). The nitrate content in fruits of strawberry and banana averaged at 24.0 mg/kg and 438.5 mg/kg, respectively. Nitrate was not detected in other fruits. In fruiting vegetables nitrate contents were less than 1000 mg/kg. In onion, lotus root and radish, nitrate contents were 253.7mg/kg, 352.4mg/kg and 2849.0 mg/kg, respectively, with no detection in garlic. Nitrate contents in mushrooms were less than 100 mg/kg.
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