Chinese food companies need much cheaper detection method of heavy metals, using urease to detect Pb and Cd in food was studied, which was a new method to the traditional detection.

研究基于中国食品企业亟需较为低廉检测方法的现状，应用酶法检测食品中的铅镉重金属，在传统的检测基础上又增加一种新的检测方法。

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Analyses on heavy metals in edible parts of 152 vegetable samples from 9 species in Chengdu were conducted to study content and distribution of heavy metals, Hg, As, Pb and Cd in the vegetables.

通过对成都地区的9种蔬菜152个样品的可食部分中重金属元素的分析研究，查明了蔬菜中重金属汞、砷、铅、锡的含量及分布特征。

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