pp. 1019-1026
S&M1559 Research Paper https://doi.org/10.18494/SAM.2018.1837 Published: May 18, 2018 Measurement of Low Magnesium Concentration in Aqueous Solution [PDF] Mahmoud Naseri, Amir Reza Sadrolhosseini, Yap Wing Fen, and Mohd Adzir Mahdi (Received December 6, 2017; Accepted March 2, 2018) Keywords: Mg, surface plasmon resonance, nickel-ferrite nanoparticle, polypyrrole
Magnesium is an alkaline earth metal that is found in some type of biological samples. One of the responsibilities of medical biological laboratories is the measurement of magnesium. In this study, the metal layer of the surface plasmon resonance sensor was improved using polypyrrole-chitosan/nickel-ferrite nanoparticles to enhance the sensitivity and selectivity of the sensor. The composite layer of polypyrrole-chitosan/nickel-ferrite nanoparticles was prepared using the electrochemical method on a gold-coated glass slide. The measurements were conducted at room temperature with different concentrations of magnesium. In order to determine the selectivity of the sensor, its response was compared with the results that were obtained in the presence of sodium and calcium ions. The sensitivity limit of the sensor was about 0.1 mg/L, and the response time of the sensing layer was about 350 s.
Corresponding author: Amir Reza SadrolhosseiniCite this article Mahmoud Naseri, Amir Reza Sadrolhosseini, Yap Wing Fen, and Mohd Adzir Mahdi, Measurement of Low Magnesium Concentration in Aqueous Solution, Sens. Mater., Vol. 30, No. 5, 2018, p. 1019-1026. |