Analysis of Mercury in Fish, North Sumatera Indonesia by Atomic Absorption Spectrophotometer

  • Jhan Saberlan Purba Purba Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia
  • Jansen Silalahi Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia

Abstract

The maximum level of mercury permitted in fish by BPOM RI is 0.5 mg/kg. This study was conducted to determine the level of mercury in fish often consumed in Medan Indonesia. Fish samples were collected from 7 traditional fish market outlets and 1 supermarket in Medan in December 2019. Fish samples were dried using an oven at 1030C untill a constant dry weight was attained. Then, the digestionprocess was carried out using concentrated nitric acid and perchloric acid. Determination of mercury level was carried out using CV-AAS method with 900 H Perkin Elmer atomic absorption spectrophotometer equipped with MHS-15 (Mercury Hidride System). The results showed that the level of mercury in pelagic fish was found significantly in yellowfin tuna (Thunnusalbacares) of 27.3865 ± 0.3326 µg/kg; mackerel tuna (Euthynnusaffinis) of 17.8570 ± 0.0121 µg/kg; skipjack tuna(Katsuwonuspelamis) of 17.4507 ± 1.5893 µg/kg; spanish mackerel (Scomberomoruscommersonii) of 10.5767 ± 0.1862 µg/kg; grouper (Epinepheusfuscoguttatus) of  9.9736 ± 0.9115 µg/kg; mackerel (Rastreligerkanagurta) of  6.5364 ± 0.1935 µg/kg and dumersal fish were found significantly in red snapper (Lutjanuscampechanus) of 14.0966 ± 0.8555 µg/kg; stingray(Dasyatissp) of 61.3146 ± 0.8149 µg/kg; ariid catfish (Arius thalassinus) of 13.2533 ± 0.7586 µg/kg; black pomfret(Parastromateusniger) of 10.7755 ± 0.4605 µg/kg; sardine(Sardinellasp) of 6.5464 ± 0.1036. The results showed that the larger fish has the higher mercury level. The level of mercury in these analyzed fish samples was below maximum level permitted by BPOM RI.


 

Keywords: Mercury, Fish, Atomic Absorption Spectrophotometer-MHS 15.

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Author Biographies

Jhan Saberlan Purba Purba, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia

Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia

Jansen Silalahi, Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia

Department of Pharmaceutical Chemistry, Faculty of Pharmacy, UniversitasSumatera Utara, Medan, Indonesia

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How to Cite
Purba, J., & Silalahi, J. (2020). Analysis of Mercury in Fish, North Sumatera Indonesia by Atomic Absorption Spectrophotometer. Asian Journal of Pharmaceutical Research and Development, 8(3), 21-25. https://doi.org/https://doi.org/10.22270/ajprd.v8i3.728