三亚市主要冬种蔬菜硝酸盐含量分析与评价 |
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引用本文: | 任 红,柯用春,李劲松.三亚市主要冬种蔬菜硝酸盐含量分析与评价[J].热带作物学报,2012,32(9):20-22. |
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作者姓名: | 任 红 柯用春 李劲松 |
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作者单位: | 三亚市南繁科学技术研究院 海南三亚 572000;三亚市南繁科学技术研究院 海南三亚 572000;三亚市南繁科学技术研究院 海南三亚 572000 |
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摘 要: | 采用水杨酸-硫酸比色法,测定了三亚市5个蔬菜市场中4类17个品种110个冬种蔬菜样品的硝酸盐含量。结果表明:硝酸盐含量由高至低依次为:叶菜类>豆类>茄果类>瓜果类,4类蔬菜含量均低于无公害蔬菜硝酸盐含量限值。17个品种蔬菜的硝酸盐含量分布在15~1 520 mg/kg,均受到不同程度的污染,其中叶菜类污染较为严重。
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关 键 词: | 冬种蔬菜 水杨酸-硫酸比色法 硝酸盐 含量 |
Analysis and Evaluation of Nitrate Content in Winter Vegetables in Sanya |
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Institution: | Sanya Science and Technology Academy for Crop Winter Multiplication, Sanya, Hainan 572000;Sanya Science and Technology Academy for Crop Winter Multiplication, Sanya, Hainan 572000;Sanya Science and Technology Academy for Crop Winter Multiplication, Sanya, Hainan 572000 |
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Abstract: | Nitrate content of winter vegetables in Sanya was tested and evaluated. 110 samples of 17 varieties collected in 5 major vegetable markets located in Sanya city were tested for their nitrate content by nitro-determination of salicylic acid method. The results showed that the nitrate content differed greatly in different vegetables, showing a decreasing order as leaf vegetables > bean vegetables > solanaceous fruits > ground vegetables, and met the national nitrate concentration limit standards. The nitrate content of 17 varieties was between 15 and 1 520 mg/kg which indicated that they were all polluted in different degrees especially for leaf vegetables that were mildly polluted. |
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Keywords: | winter vegetables nitro-determination of salicylic acid nitrate content |
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