Spectrophotometric Method for Determination of Chromium Ion in Aqueous Solution Using Ninhydrin
- 1 Department of Chemistry, Faculty of Science, Al Al-Bayt University, Mafraq, Jordan
- 2 Department of Chemistry, Faculty of Science, Al Al-Bayt University, Mafraq, Jordan
- 3 Department of Chemistry, Hashemite University, Zarqa, Jordan
Abstract
A simple, precise, inexpensive and reproducible spectrophotometric method was investigated for the determination of chromium ion (III) in aqueous media, this method based on the formation of a complex between chromium ion (III) and ninhydrin, a deep greenish-violet colored product in the presence of potassium hydroxide was obtained. The absorption of this product was measured at λ max = 375 nm. The reaction proceeds quantitatively at room temperature. The linear calibration curve was constructed over range of (4.8 × 10 -4 - 1.6 × 10 -2 ) mol/L of chromium ions with molar absorptivity of 2.90 × 10 2 and correlation coefficient R 2 = 0.9989. The calculated Sandell’s sensitivity value is 0.179 μg/cm 2 , the limits of detection (LOD) and the limit of quantification (LOQ) are found to be 3.74 × 10 -5 and 1.24 × 10 -4 mol/L, respectively. The method was successfully applied for determination of the chromium ion in aqueous solution. The stoichiometry of the reactions was determined molar combining ratio of 1:2 between chromium and ninhydrin.
- Filik, H and Avan, A.A. (2019) Magnetic Nanostructures for Preconcentration, Speciation and Determination of Chromium Ions: A Review. Talanta, 203, 198-177. https://doi.org/10.1016/j.talanta.2019.05.061
- Marques, M.J., Morales-Rubio, A., Salvador, A. and De la Guardia, M. (2001) Chromium Speciation Using Activated Alumina Microcolumns and Sequential Injection Analysis-Flame Atomic Absorption Spectrometry. Talanta, 53, 1229-1239. https://doi.org/10.1016/S0039-9140(00)00616-0
- Mani Tripathi, S. and Chaurasia. S. (2020) Detection of Chromium in Surface and Groundwater and Its Bio-Absorption Using Bio-Wastes and Vermiculite. Engineering Science and Technology, an International Journal, 23, 1153-1161. https://doi.org/10.1016/j.jestch.2019.12.002
- Shi, X., Yao, L. and Pan, T. (2021) Visible and Near-Infrared Spectroscopy with Multi-Parameters Optimization of Savitzky-Golay Smoothing Applied to Rapid Analysis of Soil Cr Content of Pearl River Delta. Journal of Geoscience and Environment Protection, 9, 75-83. https://doi.org/10.4236/gep.2021.93006
- Catalani, S., Fostinelli, J., Gilberti, M.E. and Apostoli, P. (2015) Application of a Metal Free High Performance Liquid Chromatography with Inductively Coupled Plasma Mass Spectrometry (HPLC–ICP-MS) for the Determination of Chromium Species in Drinking and Tap Water. International Journal of Mass Spectrometry, 387, 31-37. https://doi.org/10.1016/j.ijms.2015.06.015
- Yang, W.P., Zhang, Z.J. and Deng, W. (2003) Speciation of Chromium by In-Capillary Reaction and Capillary Electrophoresis with Chemiluminescence Detection. Journal of Chromatography A, 1014, 203-214. https://doi.org/10.1016/S0021-9673(03)00940-3
- Hue, N.T., Hop, N.V., Long, H.T., Phong, N.H., Uyen, T.H., Le Quoc Hung, L.Q., and Nguyen Nhi Phuong, N.N. (2020) Determination of Chromium in Natural Water by Adsorptive Stripping Voltammetry Using In Situ Bismuth Film Electrode. Journal of Environmental and Public Health, 2020, Article ID: 1347836. https://doi.org/10.1155/2020/1347836
- Kazemi, E., Shabani, A.M.H., Dadfarnia, S. and Izadi, F. (2017) Speciation and Determination of Chromium Ions by Dispersive Micro Solid Phase Extraction Using Magnetic Graphene Oxide Followed by Flame Atomic Absorption Spectrometry. International Journal of Environmental Analytical Chemistry, 97, 743-755. https://doi.org/10.1080/03067319.2017.1353087
- Boutorabi, L., Rajabi, M., Bazregar, M. and Asghari, A. (2017) Selective Determination of Chromium(VI) Ions Using In-Tube Electro-Membrane Extraction Followed by Flame Atomic Absorption Spectrometry. Microchemical Journal, 132, 378-384. https://doi.org/10.1016/j.microc.2017.02.028