Babaee Saeed, Ghanbari Pakdehi Shahram, Sadat Nabavi Akram, An Optical Chemical Sensor for Determination of Nickel in Water and Hydrogen Peroxide Samples, Journal of New Developments in Chemistry, Volume 1, Issue 2, 2016, Pages 58-69, ISSN 2377-2549, https://doi.org/10.14302/issn.2377-2549.jndc-16-1212. (http://oap-journals.orgjndc/article/357) Keywords: Optical sensor; Nickel determination; Poly (vinyl chloride) membrane; Hydrogen peroxide.