Study on Cadmium Absorption in Pumpkin by Atomic Absorption Spectrophotometry
LI Zhen-xia1, JING Rui-jun1, DONG Wei-hua2, LI Xin-zheng1,LIU Hong1
1. Department of Horticulture, Henan College of Science and Technology, Xinxiang 453003, China 2. Department of Biochemistry and Molecular Biology, Xinxiang Medical College, Xinxiang 453003, China
Abstract：A study was carried out on the characteristic of cadmium absorption in pumpkin by atomic absorption spectrophotometer. The results show that the cadmium absorption amount in pumpkin increased with the increase in cadmium concentration. Meanwhile the cadmium absorption amount in pumpkin increased with time. Eight hours after being cultured in the liquid, the cadmium absorption amount became saturated. The cadmium absorption rate reached the peak after 2 hours, then the absorption rate gradually reduced. The cadmium absorption amount in pumpkin is less in acid or alkali compared with neutral condition. And the absorption amount became minimum in pH 3, while maximum in pH 7.
李贞霞1,荆瑞俊1,董卫华2,李新峥1,刘弘1 . 原子吸收光谱法测定南瓜吸收镉的研究[J]. 光谱学与光谱分析, 2006, 26(08): 1557-1559.
LI Zhen-xia1, JING Rui-jun1, DONG Wei-hua2, LI Xin-zheng1,LIU Hong1 . Study on Cadmium Absorption in Pumpkin by Atomic Absorption Spectrophotometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(08): 1557-1559.
