Determination of lead and cadmium in ceramics food containers by GFAAS.
Feng YinFeng, Huang Cheng, Zhou Ri-dong
Abstract
Feng YinFeng, Huang Cheng, Zhou Ri-dong
Abstract
Objective To establish a method for determination of lead and cadmium in ceramics for food containers by GFAAS. Methods The samples were immersed with 4%(v/v)acetic acid solution. Then a certain volume of soaking liquid was injected into the graphite furnace atomic absorption spectrometer(GFAAS)for detection with matrix modifier ammonium dihydrogen phosphate. Results The recovery rate,relative standard deviation and detection limit were 90%~110%,3.0% and 1.5μg/L for lead respectively,and 93% ~107% ,2.4% and 0.04μg/L for cadmium respectively. Conclusion The method is suitable for determination of lead and cadmium in ceramics for food containers by GFAAS.
A significance statement is not available in the OpenAlex record.
A contribution statement is not available in the OpenAlex record.
Method details are not available in the OpenAlex metadata.
Findings are not separately available in the OpenAlex metadata.
Limitations are not available in the OpenAlex metadata.
Application details are not available in the OpenAlex metadata.
Objective To establish a method for determination of lead and cadmium in ceramics for food containers by GFAAS. Methods The samples were immersed with 4%(v/v)acetic acid solution. Then a certain volume of soaking liquid was injected into the graphite furnace atomic absorption spectrometer(GFAAS)for detection with matrix modifier ammonium dihydrogen phosphate. Results The recovery rate,relative standard deviation and detection limit were 90%~110%,3.0% and 1.5μg/L for lead respectively,and 93% ~107% ,2.4% and 0.04μg/L for cadmium respectively. Conclusion The method is suitable for determination of lead and cadmium in ceramics for food containers by GFAAS.
Key concepts: Graphite furnace atomic absorption, Cadmium, Detection limit, Chemistry, Ammonium dihydrogen phosphate, Mass spectrometry, Matrix (chemical analysis), Atomic absorption spectroscopy