急求毕业论文摘要英文翻译,求那位大虾帮帮忙

来源:百度知道 编辑:UC知道 时间:2024/05/22 16:04:07
铬在自然界中广泛分布,生物体中主要以三价铬的形式存在。是人畜不可少的微量元素,但积累过多就会出现毒害。六价铬是毒性最大的形态,其毒性比三价铬高100倍。本文通过研究铬在土壤和植物体内的迁移规律研究了铬对植物产生的影响,了解到铬能够致使植物生长发育不良。还通过研究铬在人体中与人体内细胞和组织发生不同的生理反应来阐释了铬对人体产生危害的原理以及后果。同时本文最后还介绍了几种铬的测定方法。

Chromium is widely distributed in nature, organisms mainly trivalent form of chromium. Trace elements is essential for people and livestock, but there will be the accumulation of excessive toxicity. Hexavalent chromium is the most toxic form, the toxicity of trivalent chromium than 100 times. In this paper, studies of chromium in soil and plants to study the migration of chromium on the impact of plants, a result that chromium can be stunted plant growth. Through the study of chromium in the body and the body cells and tissues of different physiological responses occur to explain the chrome on the principle of the human body, as well as the consequences of hazards. At the same time, the end of this article also describes several of the determination of chromium.