Design and Synthesis of the Poly Vinyl Chloride (PVC) Membrane for Fe(III) Ion Selective Electrode (ISE) Based on Ester Modified Humic Acid (EHA) as an Ionophore
نویسندگان
چکیده
Design and synthesis of the poly vinyl chloride (PVC) membrane as Fe(III) ion selective electrode (ISE) sensor based on EHA ionophore an excellent sensory molecule for monitoring in sample solution had been done. Simple efficient was made by condensation carboxylic acid HA with ethanol sulfuric catalist. PVC prepared mixed all component such powder, EHA, plasticizer (o-NPOE DOP) anion lipophilic (Sodium-TPB oleic acid) a total weight 100 mg dissolved 1 mL dry THF. The responses showed that electrodes were highly to Fe3+ at pH 3 response time ±50 seconds. dynamic range ISE 10-1–10-7 M value Nernst factor ±19 mV per decade. can be used least 5 weeks. analytical results measurement good confirmity reference method (AAS), suggesting developed tool could measure monitor real water samples.
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ژورنال
عنوان ژورنال: Journal of applied research and technology
سال: 2022
ISSN: ['2448-6736']
DOI: https://doi.org/10.22201/icat.24486736e.2022.20.6.955