STUDY ON THE CONTENTS OF TWO METALS, Fe AND Mn, IN UNDERGROUND WATER SAMPLES OF RESIDENT AREA IN QUAN TRIEU WARD, THAI NGUYEN CITY BY FLAME ATOMIC ABSORPTION SPECTROMETRY (F-AAS) METHOD

Nguyễn Thị Mỹ Ninh; Lê Thị Giang; Lê Lệ Hồng

doi:10.34238/tnu-jst.4839

STUDY ON THE CONTENTS OF TWO METALS, Fe AND Mn, IN UNDERGROUND WATER SAMPLES OF RESIDENT AREA IN QUAN TRIEU WARD, THAI NGUYEN CITY BY FLAME ATOMIC ABSORPTION SPECTROMETRY (F-AAS) METHOD

About this article

Received: 04/08/21 Revised: 05/11/21 Published: 08/11/21

Authors

1. Nguyen Thi My Ninh , TNU - University of Medicine and Pharmacy
2. Le Thi Giang, TNU - University of Medicine and Pharmacy
3. Le Le Hong, TNU - University of Medicine and Pharmacy

Abstract

Assessment of heavy metal contents in underground water samples has important implications for people's health and safety. In this study, the contents of two metals (Fe and Mn) in bored well water samples collected in 20 households in Quan Trieu ward, Thai Nguyen city, was analyzed by F-AAS method. The analytical method's detection limits of Fe and Mn were 0.050 mg/L, and 0.022 mg/L, respectively. The recoveries of Fe and Mn were 95.5% and 93.8%, respectively. The average concentrations of Fe and Mn in the bored well water samples were 0.508 mg/L (0.050 to 2.474 mg/L) and 0.686 mg/L (0.023 to 2.565 mg/L), respectively. In general, both Fe and Mn contents in some samples were exceeding the allowable limit for drinking water when comparing with some standards of Vietnam, USA and India. Where, there were 8 samples with Fe content exceeding the standards of Vietnam, USA and India; There were about 13-16 samples with Mn content exceeding the standards of the 3 above mentioned countries above.

Keywords

Underground water; F-AAS method; Iron content; Manganese content; Heavy metals

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References

[1] M. T. Nguyen, “AAS method for analyzing and evaluating the manganese content in domestic well water in some households in Loc Ninh Commune, Dong Hoi city," (in Vietnamese), Quang Binh Journal of Science & Technology Information, no. 5, pp. 48-51, 2015.

[2] T. S. Nguyen and N. A. Tran, “Rural domestic water quality in Quang Tri province - survey results in 2008,” (in Vietnamese), Journal of Science, Natural Sciences and Technology of Hanoi National University, vol. 26, no. 3s, pp. 443-448, 2010.

[3] Hoang Nham, Inorganic Chemistry. Educational publisher, 2018.

[4] M. T. Nguyen, "Determination and evaluation iron content in domestic well water in some households in Phuc Trach, Bo Trach, Quang Binh," (in Vietnamese), Scientific Journal - Dong Nai University, no. 5, pp. 150-156, 2017.

[5] F. N. Assubaie, “Assessment of the levels of some heavy metals in water in alahsa oasis farms, saudi arabia, with analysis by atomic absorption spectrophotometry,” Arabian Journal of Chemistry, vol. 8, no. 2, pp. 240-245, 2015.

[6] H. K. Okoro, A. Adeyinka, O. E. Jondiko, B. J. Ximba, and S. J. Kakalanga, “Assessment of heavy metals contamination in groundwater: A case study of central industrial district in Ilorin, Kwara State, Nigeria,” International Journal of Physical Sciences, vol. 7, no. 28, pp. 5078 - 5088, 2012.

[7] V. B. G. A. Shrivastava, "Methods for the determination of limit of detection and limit of quantitation of the analytical methods," Chronicles Young Sci, vol. 2, no. 1, pp. 21-25, 2011.

[8] J. C. Miller and J. N. Miller, Statistics and Chemometrics for Analytical Chemistry, ed. 6th, pearson education limited, England, 2010.

[9] Ministry of Health, “National Technical Regulation on the Drinking Water Quality”, issued together with Circular, no. 04/2009/TT-BYT.

DOI: https://doi.org/10.34238/tnu-jst.4839

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