• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2020, Volume: 13, Issue: 12, Pages: 1300-1309

Original Article

Determination of trace Cadmium in water and fish species from estuaries in Tien Hai, Thai Binh, Vietnam By GF-AAS

Received Date:29 March 2020, Accepted Date:23 April 2020, Published Date:08 May 2020


Objective: This study aims to determine the trace cadmium in water and fish species from estuaries in Tien Hai, Thai Binh province, Vietnam by graphite furnace atomic absorption spectrometry (GF-AAS). Methodology: The optimal conditions has been investigated by studying the effects of analysis parameters such as spectral line, current of cathode lamp, slit width, furnace temperature, acid concentration and subtracted solution on absorbance. The validation method was evaluated by linear range, accuracy, repeatability, limit of detection (LOD), limit of quantitation (LOQ), recovery (Re), and determination of trace cadmium in water and fish species. Findings: The results showed that the spectral line of 228.3 nm, current of cathode lamp of 4 mA, slit width of 0.5 nm, furnace temperature of 1800 ◦C, HNO3 concentration of 1%, CH3COONH4 concentration of 1% were optimal conditions for determination of cadmium. At these conditions, the analytical procedure exhibited the high accuracy and repeatability. The linear range of cadmium was 0-4 ppb. The LOD and LOQ values were 0.0058 and 0.019 ppb, respectively. Application/Improvements: Determination of the trace cadmium in the water and fish samples was done by the development of analytical procedure. It was applied to determine the water and fish species from Ba Lat and Lan estuaries in Tien Hai, Thai Binh, Vietnam.

Keywords: GF-AAS; Trace; Cadmium; Analysis; Fish


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Copyright: © 2020 Nguyen, Vu. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Published By Indian Society for Education and Environment (iSee)


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