[Determination of trace elements in Aloe barbadensis Miller irrigated with seawater by atomic absorption spectrophotometry].
The dry leaves of Aloe barbadensis Miller irrigated with seawater were dissolved in nitric acid and then oxygenated by perchloric acid. Nine kinds of trace elements in the samples were determined by atomic absorption spectrophotometry, including calcium, potassium, magnesium, sodium, manganese, zinc, iron, copper and lead, with added lanthanum chloride as releaser to eliminate the interference of co-existent ions. The recoveries were 96.58%-104.31%, and the relative standard deviations of sample determination (10 times) were less than 2%. This method is simple, sensitive and rapid with satisfactory results and good reproducibility. The results indicated that there were rich Ca, Mg, K and Na, and moderate Mn, Zn and Fe elements in the Aloe barbadensis Miller irrigated with seawater. However, the concentrations of Cu and Pb were low. Therefore, Aloe barbadensis Miller irrigated with seawater has officinal and economic values. These results provide data for further research on Aloe barbadensis Miller irrigated with seawater.
Department of Bioscience and Biotechnology, Dalian University of Technology, Dalian 116024, China. chunhuiliu9688@126.com
Chun-Hui
CH
Liu
Chang-Hai
CH
Wang
Zhao-Pu
ZP
Liu
D000504:Aloe / Q000737:chemistry*; D008672:Metals, Alkali / Q000032:analysis*; D008673:Metals, Alkaline Earth / Q000032:analysis*; D019216:Metals, Heavy / Q000032:analysis*; D015203:Reproducibility of Results; D012623:Seawater / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000379:methods*
D008672:Metals, Alkali; D008673:Metals, Alkaline Earth; D019216:Metals, Heavy