[Determination of trace elements in edible cactus by atomic absorption spectrometry].
The contents of 10 trace elements in edible cactus were determined by air-acetylene flame atomic absorption spectrometry. The sample was dissolved by ashing method. The experiment conditions were optimized by preparing mixed standard solution of these elements and adding LaCl3 and CsCl for interfering complements. The results show that the contents of following elements in the cactus are: 13-47 mg x g(-1) for Mg, K and Ca; 108-243 microg x g(-1) for Zn, Mn, Fe and Na; 34.8 microg x g(-1) for Cu, and 9.8-11.7 micro x g(-1) for Ni, Sr; and the contents of Mg, K, Ca, Zn, Mn, Fe, Na and Cu are higher than those in carrot.
Department of Chemistry, Yantai Teachers University, Yantai 264025, China.
Gui-Hua
GH
Li
Jun-Shen
JS
Liu
Yu-Bao
YB
Wang
Yu-Jing
YJ
Chen