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Title: Development of a Colorimetric Sensor for Nickel Ion Based on Transparent Electrospun Composite Nanofibers of Polycaprolactam-Dimethylglyoxime/Polyvinyl Alcohol
Journal: Journal of Materials Science
Author: 1. Hamid Najarzadekan, Hassan Sereshti
Year: 2016
Address: 1. Department of Chemistry, Faculty of Science, University of Tehran, Tehran, Iran
Abstract: A new type of optical sensor based on electrospun composite polycaprolactam (N6)-dimethylglyoxime (DMG) nanofibers collected on a glass slide was fabricated. The nanofibrous mat was then impregnated with a polyvinyl alcohol (PVA) solution to make it transparent. The colorimetric sensor, N6-DMG@glass, was coupled with absorbance spectrophotometry for analytical determination of nickel ions (Ni2?) as red Ni(DMG)2 complex. The main factors affecting performance of the sensor including DMG dosage, electrospinning time, polymer solution flow rate, electrospinning voltage, and PVA amount were investigated. Under the optimal conditions, limit of detection, limit of quantification, linear dynamic range, and determination coefficient (R2) were 2, 5, 5–100 lg mL-1 and 0.9989, respectively. The relative standard deviation (%, n = 3) at the concentration level of 50 lg mL-1 was 3.1 %. The technique was applied successfully to the determination of Ni2? in electroplating nickel pool, tap water, and laboratory wastewater.
Keywords:
Application: Sensor
Product Model 1: Syringe Pump (SP1000)
Product Model 2:
URL: https://link.springer.com/article/10.1007/s10853-016-0123-1#="https://link.springer.com" & "/article/10.1007/s10853-016-0123-1"#