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New Nano Materials-Based Optical Sensor for Application in Rapid Detection of Fe(II) and Pd(II) ions
Date de publication
15/10/2019 00:00:00
108
Authors
Rasha M. Kamel, Ahmed Shahat, Manar M. Abd El-Emam, Esraa M. Kilany
Description
For the analytical determination of Fe(II) and Pd(II) concentrations, a novel optical sensor based on spectrophotometric technique was used. The optical sensor was prepared by direct immobilization of a novel synthesized chromophore, 5-amino-phenanthrolin-3 formyl salicylic acid, onto nanocellulose. Human vision can identify the color associated with Fe II ions, and spectrophotometric methods can measure it with detection and quantification limits of 0.239 and 0.796 ppb, respectively. Pd(II) detection and quantification limits were 0.318 ppb and 1.06 ppb, respectively. The effects of various parameters on the detection of Fe(II) or Pd(II) ion content were investigated and optimized. The optical phenanthrolinenanocellulose (5-Phen) sensor could be reproduced multiple times and used with a higher capacity each time. The results demonstrated that the 5- Phen sensor could measure Fe(II) in human blood serum accurately and successfully even without any pre-concentration.
URL
journal homepage: www.elsevier.com/locate/molliq
DOI
https://doi.org/10.1016/j.molliq.2019.111798
Bref
In this study, a novel method for detecting Fe(II) in samples of human blood serum using a chemical sensor based on nanocellulose. The color change can be seen with the naked eye and measured using spectrophotometric equipment to detect Fe(II) ions. The resulting 5-Phen sensor exhibits excellent Fe(II) ion detection sensitivity. The 5-Phen sensor can also be used to detect Pd(II) ions. Additionally, the 5-Phen sensor only uses small doses (30 or 50 mg/test), resulting in low pollution and chemical costs with short response time (˂ 1 min). After stirring the used sensor with 0.1 M Na2S2O3 or EDTA, the used 5-Phen sensor may be reused with ease.
KeyWords
Nano-cellulose; Chemosensors; Detection; Optical Sensor, Pollutants