Penentuan Logam Cr(VI) Menggunakan Metoda Voltammetri Stripping Anoda (VSA) pada Sampel Air Laut dan Air Sungai
Abstrak
Penelitian dengan tujuan penentuan logam Cr(VI) dalam sampel air laut dan sungai menggunakan metoda Voltammetri Stripping Anoda (VSA) telah dilakukan dengan mencari kondisi optimum potensial deposisi, waktu deposisi, pH, konsentrasi elektrolit pengukuran. Serta melihat ketelitian dan ketepan metoda maka dilakukan penentuan nilai simpangan baku relatif (SRD) dan nilai perolehan kembali. Hasil yang diperoleh adalah kondisi potensial deposisi -1,3 V, waktu deposisi 60 detik, konsentrasi larutan elektrolit pendukung NH4Cl 0,2 M, pH 10, Nilai SDR adalah 2,36%, dan nilai persen recovery 99,91%. Sebagai aplikasi dari metoda ini dilakukan penentuan Cr(VI) dalam sampel air laut Senggarang, dan air sungai Carang Tanjungpinang. Diperoleh konsentrasi Cr(VI) dalam sampel air laut Senggarang 133,751 µg/L, dan dalam sampel air Sungai Carang 34,702 µg/L.
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Referensi
Abdolmohammad-Zadeh, H., Mohammad-Rezaei, R., & Salimi, A. 2020. Preconcentration of mercury (II) using a magnetite@ carbon/dithizone nanocomposite, and its quantification by anodic stripping voltammetry. Microchimica Acta, 187(1), 2.
Borrill, A. J., Reily, N. E., & Macpherson, J. V. 2019. Addressing the practicalities of anodic stripping voltammetry for heavy metal detection: a tutorial review. Analyst, 144(23), 6834-6849.
Deswati, Suyani H, Safni, Loekman U, & Pardi H. 2013. Simultaneous Determination of Cadmium, Copper And Lead In Sea Water By Adsorptive Stripping Voltammetry In The Presence Of Calcon As A Complexing Agent. Indonesian Journal of Chemistry, 13(3), 236-241.
Deswati, Pardi H, Suyani H, & Zein R. 2016. Adsorptive Cathodic Stripping Voltammetric Method with Alizarin for the Simultaneous Determination of Cadmium, and Zinc in Water Samples. Oriental Journal of Chemistry, 32(6), 3071-3080.
Deswati, Suyani H, Zein R, Alif A, & Pardi H. 2017. Adsorptive Stripping Voltammetric Method for The Individual Determination of Cd(II), Pb(II), and Zn(II) in Vegetable Samples using Calcein. Rasayan Journal of Chemistry, 10(2), 549-557.
Lisboa, T. P., de Faria, L. V., Matos, M. A. C., Matos, R. C., & de Sousa, R. A. 2019. Simultaneous determination of cadmium, lead, and copper in the constituent parts of the illegal cigarettes by Square Wave Anodic Stripping Voltammetry. Microchemical Journal, 150, 104183.
Munaf E, Suyani H, Loekman U, & Pardi H. 2014. The sensitive and simple determination of trace metals Fe, Co, Ni and Cr in water samples by adsorptive stripping voltammetry (AdSV) in the presence of calcon. Research Journal of Pharmaceutical, Biological and Chemical Sciences, 5(4), 990-1000.
Pardi H, Suyani H, & Edelwis, TW. 2017. Simultaneous Determination of Cu, Pb, Cd, AND, Zn In Tap Water Samples in the Presence of Alizarin: Differential Pulse Adsorptive Stripping Voltammetry. Analytical & Bioanalytical Electrochemistry, 12(4), 123-132.
Pardi H, Suyani H, Yusuf Y, & Edelwis TW. 2018. Application of Calcon as Complexing Agent for the Simultaneous Determination of Lead and Cadmium in Sea Water with Adsorptive Cathodic Stripping Voltammetry. Analytical & Bioanalytical Electrochemistry, 15(7), 12-24.
Pardi, H., & Willian, N. 2019. Penentuan Logam Cr (VI) Menggunakan Metoda Differensial Pulse Adsorptive Stripping Voltammetry dengan Calconcarboxylic Acid Sebagai Pengomplek. Journal of The Indonesian Society of Integrated Chemistry, 11(2), 49-56.
Pizarro, J., Segura, R., Tapia, D., Navarro, F., Fuenzalida, F., & Aguirre, M. J. 2020. Inexpensive and green electrochemical sensor for the determination of Cd (II) and Pb (II) by square wave anodic stripping voltammetry in bivalve mollusks. Food Chemistry, 126682.
Xia, S., Song, Z., Jeyakumar, P., Shaheen, S. M., Rinklebe, J., Ok, Y. S., ... & Wang, H. 2019. A critical review on bioremediation technologies for Cr (VI)-contaminated soils and wastewater. Critical reviews in environmental science and technology, 49(12), 1027-1078.
Yang, X., Liu, L., Zhang, M., Tan, W., Qiu, G., & Zheng, L. 2019. Improved removal capacity of magnetite for Cr (VI) by electrochemical reduction. Journal of hazardous materials, 374, 26-34.
Zarębski J, Bobrowski A, Królicka A, Gonciarczyk J, Manolopoulou V, & Economou A. 2020. A novel catalytic adsorptive stripping voltammetric method for the determination of germanium ultratraces in the presence of chloranilic acid and the V (IV)· HEDTA complex. Journal of Solid State Electrochemistry, 24(11), 2891-2899.
Zhang Y, Zhao H, Qian L, Sun M, Lv X, Zhang L, & Qiu G. 2020. A brief overview on the dissolution mechanisms of sulfide minerals in acidic sulfate environments at low temperatures: Emphasis on electrochemical cyclic voltammetry analysis. Minerals Engineering, 158, 106586.
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