RESUMO
The contents of eight trace elements Zn, Co, Fe, Mn, Mg, Ca, Cu and K in scallop were determined by ICP-AES and AAS using nitrifying method of high pressure nitrifying pot. The comparison between the results of two analysis methods was made, which proved no obviously differenct. The recoveries were 93.3%-102.8%, and the relative standard deviations were less than 1.60%. The experiment proved that scallop contains rich and useful trace elements, not only tastesgood and fresh, but also is essential supplemental elements that human body can not synthesize by itself.
Assuntos
Pectinidae/química , Alimentos Marinhos/análise , Oligoelementos/análise , Animais , Valor Nutritivo , Espectrofotometria AtômicaRESUMO
In this paper,the contents of trace elements in beans such as Ca, Mg, Mn, Sr, Fe, Co, Ni, Se and Ba were determined by ICP-AES uing nitrifying method of high pressure nitrifying pot, and compared with the results of wet method. The two methods showed no obvious differences. The method proves to be simple, rapid, highly sensitive, accurate and can be used to determine many elements at the same time. In addition, there was little environment pollution. Its recovery is 96.8%-102%, and relative standard deviation is 3.35%.
Assuntos
Cálcio/análise , Fabaceae/química , Espectrofotometria Atômica/métodos , Adsorção , Bário/química , Poluição Ambiental/análise , Fósseis , Magnésio/química , Manganês/química , Selênio/química , Estrôncio/química , Oligoelementos/análiseRESUMO
In this paper, orthogonal test was applied to determination of trace elements in wild vegetables just as Mn, Se, Cu, Fe, Mg and Zn by ICP-AES. It could provide many informations for us by less experimental times, and could choice the best experimental conditions by square-error analysis. It would be helpful for improving experimental accuracy. The method was simple, rapid, and possessed of highly sensitivity, good accuracy and determination of many elements at the same time, in addition little environment pollution. The recoveries of the method were in the range of 97.2%-103.3%, and relative standard deviations were less than 2.15%. The experimental results proved wild vegetables were valuable and nutritious food, they had rich trace elements.