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An effective analytical system based on an ultraviolet atomizer for trace cadmium determination using atomic fluorescence spectrometry

Abstract

A novel ultraviolet (UV) atomization atomic fluorescence spectrometry (UV-AFS) was developed for quantitative analysis of trace cadmium ions (Cd) without preconcentration. Cd2+ can transform to Cd0 and Cd hydride (CdH2) gas vapor after hydride generation (HG) with KBH4. With the help of a simple, low power and low temperature UV atomizer, CdH2 can be converted to Cd0 thus the total Cd was detected. Due to the high atomization efficiency and low carrier gas dilution of the UV atomizer, the analytical system provides high sensitivity with the limit of detection (LOD) of 0.006 ng mL−1, which was comparable to those obtained by preconcentration methods. The relative standard deviation (RSD) (n=11) was better than 2.1% at the concentration of 0.5 ng mL−1. Its application examples were demonstrated by analyzing a Certified Reference Materials and food samples for ultra-trace detection of Cd2+.

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Publication details

The article was received on 03 Jul 2018, accepted on 05 Sep 2018 and first published on 06 Sep 2018


Article type: Paper
DOI: 10.1039/C8AY01469H
Citation: Anal. Methods, 2018, Accepted Manuscript
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    An effective analytical system based on an ultraviolet atomizer for trace cadmium determination using atomic fluorescence spectrometry

    X. Yuan, L. Yang, S. Liu, H. Yang, Y. Tang, K. Huang and M. Zhang, Anal. Methods, 2018, Accepted Manuscript , DOI: 10.1039/C8AY01469H

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