Simultaneous analysis for multiple heavy metals in contaminated biological samples |
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Authors: | Mochizuki Mariko Hondo Ryo Ueda Fukiko |
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Institution: | (1) Department of Veterinary Public Health, Nippon Veterinary and Animal Science University, 1-7-1 Kyonan, Musashino, 180-8602 Tokyo, Japan |
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Abstract: | In the present study, the conditions of analysis by inductively coupled plasma-atomic emission spectrometry (ICP-AES) were
investigated. Twenty-six elements (Mg: 25 ppm; Sc: 10 ppm; Ti: 50 ppm; others: 100 ppm) were used as the elements interfering
with selected 24 wavelengths. Consequently, the background values in 19 elements were subjected to some influences. However,
all of these effects disappeared at low concentrations—less than 1 ppm of interfering elements. Next, the values from the
ordinary calibration method were compared with those from the standard addition method using several biological samples. There
was a discrepancy in the results obtained from both methods because of the sample, and three patterns were observed. However,
no discrepancy was observed in the values for the standard reference materials using both methods. There was no significant
difference between the certified values of the standard reference materials and the obtained ones by ICP. Therefore, the analytical
wavelengths and the methods in the present study were suggested to be useful for ICP-AES analysis for environmental and/or
biological samples. |
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Keywords: | ICP-AES multiple elements biological samples standard reference materials |
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