A new Hg (II) electrode for the analysis of mercury in sea food

An Hg(II) solid state electrode (ISE) was fabricated using HgS and the sparingly soluble sulfur salts of Cu and Ag, and the highest sensitivity of the ISE was obtained with 10% HgS (w/w) composition. The ISE shows a slope of about 29 mV towards the Hg (II) ion (pHg 1,0-7,0 mol L-1). Hg-SE has a response time of 20 s and a linear slope between pH 1.0 and 5.0. Its lifetimes are 1 year. It was determined that ISE is not sensitive to other ions. The LOD value of the electrode was measureted as 5x 10-8 M. In addition, after the validation of the electrode, Hg measurements in seafood were carried out.

Keywords:

Trace element, Selective electrode, Toxily mercury, Sensors, Potantiomety Seafood,

PDF

___

[1] Fátima S.M., Tóth I.V., Rangel A.O.S.S., Determination of mercury in fish by cold vapor atomic absorption spectrophotometry using a multicommuted flow injection analysis system, Analytical Sci., 22 (2006) 861-864. https://doi.org/10.2116/analsci.22.861
[2] Batista B.L., Rodrigues J.L., De Souza S.S., Souza V.C.O., Barbosa F., Mercury speciation in seafood samples by LC–ICP-MS with a rapid ultrasound-assisted extraction procedure: Application to the determination of mercury in Brazilian seafood samples, Food Chemistry, 126 (2011) 2000-2004. https://doi.org/10.1016/j.foodchem.2010.12.068
[3] Kenduzler E., Ates M., Arslan Z., McHenry M., Tchounwou P.B., Determination of mercury in fish otoliths by cold vapor generation inductively coupled plasma mass spectrometry (CVG-ICP-MS), Talanta, 93 (2012) 404-410. https://doi.org/10.1016/j.talanta.2012.02.063
[4] Fashi A., Yaftian M.R., Zamani A., Electromembrane extraction-preconcentration followed by microvolume UV–Vis spectrophotometric determination of mercury in water and fish samples, Food Chemistry, 221 (2017) 714-720. https://doi.org/10.1016/j.foodchem.2016.11.115
[5] Faryadras F., Yousef S.M., Jamshidi P., Shemirani F., Application of magnetic graphene-based bucky gel as an efficient green sorbent for determination of mercury in fish and water samples, Research on Chemical Intermediates, 46 (2020) 2055–2068. https://doi.org/10.1007/s11164-019-04069-8
[6] Martín-Yerga D., González-García M.B., Costa-García A., Electrochemical determination of mercury: a review, Talanta, 116 (2013) 1091-1104. https://doi.org/10.1016/j.talanta.2013.07.056
[7] Somer G., Caliskan A.C., Sendil O., A new and simple procedure for the trace determination of mercury using differential pulse polarography and application to a Salt Lake sample, Turkish Journal of Chemistry, 39 (2015) 639-647. https://doi.org/ 10.3906/kim-1412-19
[8] Somer G., Kalaycı Ş., Ekmekci G., Preparation and application of iodide–mercury selective membrane electrode based on ion exchangers, Sensors and Actuators B, 81 (2001) 122-127. https://doi.org/10.1016/S0925-4005(01)00942-X
[9] Mahajan R.K., Kaur I., Lobana T.S., A mercury (II) ion-selective electrode based on neutral salicylaldehyde thiosemicarbazone, Talanta, 59 (2003) 101-105. https://doi.org/10.1016/S0039-9140(02)00473-3
[10] Bakhtiarzadeh F., Ab Ghani S., An ion selective electrode for mercury (II) based on mercury (II) complex of poly (4-vinyl pyridine), Journal of Electroanal. Chem., 624 (2008) 139-143. https://doi.org/10.1016/j.jelechem.2008.08.007 [11] Dalkıran B., Demirel Ozel A., Parlayan S., Canel E., Ocak U., Kılıc E., A novel lariat crown compound as ionophore for construction of a mercury (II)-selective electrode, Monatsh Chemistry, 141 (2010) 829–839. https://doi.org/10.1007/s00706-010-0340-2
[12] Abbas I.I., Mercury (II) selective membrane electrode based on calix [2] thieno [2] pyrrole, International Journal of Chem., 4 (1) (2012) 23-29. https://doi.org/10.5539/ijc.v4n1p23
[13] Naushad M., Inamuddin Rangreez T.A., ALOthman Z.A., A mercury ion selective electrode based on poly-o-toluidine Zr (IV) tungstate composite membrane, Journal of Electroanal. Chem., 713 (2014) 125-130. https://doi.org/10.1016/j.jelechem.2013.12.002
[14] Rashvanda H.R., Hajiaghababaei L., Darvich M.R., Sarvestani M.R.J., Miyandoab F.J., A liquid membrane mercury selective electrode based on 2-(N-pipyridino methyl)-1-cyano cyclohexanol as a novel neutral carrier, Journal of Anal. Chem. 75 (10) (2020) 1340–1347. https://doi.org/10.1134/S106193482010010X
[15] Somer G., Kalaycı Ş., Başak I., Preparation of a new solid state fluoride ion selective electrode and application, Talanta, 80 (2010) 1129-1132. https://doi.org/10.1016/j.talanta.2009.08.037
[16] Somer G., Sezer S., Doğan M., Kalayci S., Sendil O., Preparation and properties of a new solid state borate ion selective electrode and its application, Talanta, 85 (2011) 1461-1465. https://doi.org/10.1016/j.talanta.2011.06.028
[17] Somer G., Yilmaz U.T., Kalaycı Ş., Preparation and properties of a new solid-state arsenate As (V) ion selective electrode and its application, Talanta, 142 (2015) 120-123. https://doi.org/10.1016/j.talanta.2015.04.036
[18] Umezawa Y., Buhlmann P., Umezawa K., Tohda K., Amemiya S., Potentiometric selectivity coefficients of ion-selective electrodes. Part I. Inorganic cations (technical report), Pure Appl. Chem., 72 (10) (2000) 1851-2082. https://doi.org/10.1351/pac200072101851
[19] Yiğit V., Müftigil N., Bazı Balık Türlerinde Saptanan Civa Miktarları, Journal of Food, 10 (1) (1985) 53-56.
[20] Kalayci S., Determination of some trace elements with ICP-OES in Hirfanlı dam lake, GU J Sci Part C, 8 (2) (2020) 451-457. https://doi.org/10.29109/gujsc.718105
[21] Kalayci S., Analysis of halogens in wastewater with a new prepared ion selective electrode, Monatshefte für Chemie, 153 (2022) 1137-1141. https://doi.org/10.1007/s00706-022-02987-9