[Study on cadmium absorption in pumpkin by atomic absorption spectrophotometry].
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.
Li
Zhen-Xia
ZX
Department of Horticulture, Henan College of Science and Technology, Xinxiang 453003, China.
Jing
Rui-Jun
RJ
Dong
Wei-Hua
WH
Li
Xin-Zheng
XZ
Liu
Hong
H
D000042:Absorption; D002104:Cadmium / Q000032:analysis* / Q000493:pharmacokinetics; D028464:Cucurbita / Q000737:chemistry* / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013997:Time Factors
D002104:Cadmium