[1]陈雅慧,王华静*.成都市常见蔬菜品质研究[J].四川师范大学学报(自然科学版),2018,(05):697-702.[doi:10.3969/j.issn.1001-8395.2018.05.021]
 CHEN Yahui,WANG Huajing.The Study on the Commonly Consumed Vegetable Quality in Chengdu City[J].Journal of SichuanNormal University,2018,(05):697-702.[doi:10.3969/j.issn.1001-8395.2018.05.021]
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成都市常见蔬菜品质研究()
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《四川师范大学学报(自然科学版)》[ISSN:1001-8395/CN:51-1295/N]

卷:
期数:
2018年05期
页码:
697-702
栏目:
基础理论
出版日期:
2018-06-15

文章信息/Info

Title:
The Study on the Commonly Consumed Vegetable Quality in Chengdu City
文章编号:
1001-8395(2018)05-0697-06
作者:
陈雅慧 王华静*
四川师范大学 地理与资源科学学院, 四川 成都 610101
Author(s):
CHEN Yahui WANG Huajing
College of Geography and Resource Sciences, Sichuan Normal University, Chengdu 610101, Sichuan
关键词:
蔬菜 硝酸盐 重金属 评价
Keywords:
vegetables nitrates heavy metals assessment
分类号:
X503.231
DOI:
10.3969/j.issn.1001-8395.2018.05.021
文献标志码:
A
摘要:
以成都市市售蔬菜产品为研究对象,对成都市蔬菜的常见品质(硝酸盐、重金属含量)进行调查研究,并对其进行分析、评价和分级.研究发现:1)成都市市售蔬菜重金属污染整体为安全水平,但部分蔬菜重金属污染达轻度污染和警戒水平,除了Cu以外其他重金属(Zn、Cd、Pb)的单项污染指数均小于1,Cu是主要的污染因子; 2)蔬菜种类不同,Cu、Zn、Cd、Pb的重金属含量有很大差异,其中叶菜类>根菜类>茄果类>瓜菜类; 3)新鲜蔬菜中硝酸盐含量因品种不同而有区别,其中叶菜类(青菜、菠菜、豌豆尖)硝酸盐含量
Abstract:
In this paper, vegetable products in Chengdu city were studed as the research object, and their common quality(nitrate, heavy metal content)was investigated, evaluated and graded. The conclusions are as follows: 1)The heavy metal pollution of vegetables in Chengdu was within safety level in general, but some heavy metal pollution of the vegetables was to mild and alert level. In addition to Cu, the average single factor pollution index of Zn, Cd and Cr was less than 1. The main factor of heavy metal pollution was Cu. 2)In different types of vegetables, the heavy metal content of Cu, Zn, Cd, Pb was very different, where leafy vegetables rank first, root vegetables the second, solanaceous fruits the third, and melon vegetables the last. 3)The nitrate content of fresh vegetables was different from that of other cultivars. The nitrate content of leafy vegetables(greens, spinach and Pea tip)was significantly higher than that of other vegetables, and 33.3% of leaf vegetables in a serious pollution state had more than 3 100 mg/kg of nitrate, which suggested the four serious pollution standards. 66.7% of leaf vegetables in a moderate pollution ratio, mild pollution ratio was 0. Followed by the root vegetables, in the case of heavy pollution accounted for 33.3%; Melon vegetables and solanaceous fruits were in a mild degree of pollution. 4)Compared with sulfosalicylic acid colorimetric method, AA3-type continuous flow analyzer can accurately and quickly determine the nitrate nitrogen content in vegetables. And it has operational convenience and result accuracy.

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备注/Memo

备注/Memo:
收稿日期:2017-06-05 接受日期:2017-07-05
基金项目:国家自然科学基金青年科学基金(41101293)和四川省教育厅项目(12ZB116)
*通信作者简介:王华静(1979—),女,副教授,主要从事土壤环境与植物营养的研究,E-mail:24902363@qq.com
更新日期/Last Update: 2018-04-15