Abstract:

Abstract:Objective To investigate the kinds and contents of trace elements in marten’ s heart and chicken’ s heart (which is easily confused with marten’ s heart),and provide a scientific method to identify them.Methods The various trace elements in marten’ s heart and chicken’s heart were  measured by inductively coupled plasma atomic emission spectroscopy（ICP-AES）after they were treated with concentrated nitric acid.Results  Eight kinds of trace elements were found in marten’s heart.The magnesium content was 685.31 mg/kg and it was the highest among the detected trace elements.Nine kinds of elements were found in chicken’s heart,but the potassium content was 11 829.7 mg/kg and the highest in it.The detection line of different elements was 0.4-12.1  μg/L,the recovery rate of the method was 92.0%-111.9%,the RSD(n=5) was 0.5%-3.8%,and all R values of the different standard curves were more than 0.999 9.Conclusion There are great differences in kinds,contents and the content ratios of different elements in marten’ s heart and chicken’ s heart. The results suggest that ICP-AES can be used for identifying marten’ s heart and chicken’ s heart.

Key words: marten’s heart;inductively coupled plasma atomic emission spectroscopy;trace element