Title: Modified solid ion-selective electrode for potentiometric determination of sulfide in oil refineries water

Authors (ORCID): ABDULLAD, Z.K., AL-SAMARRAI, S.Y. (0000-0002-0389-1991)

Keywords: ion-selective electrode, silver sulfide, oil refineries, water

Abstract: A selective electrode was manufactured to determine the sulfur ions by sedimentation method in industrial waters in oil refineries of North Refineries Company, Baiji, Iraq. The linear response on a wide range of concentration (from 1.0·10–1 to 1.0·10–6M) Na2S with a Nernst response of 28.229 mv per decade, theoretical value for slope of 29.58 mv per decade, correlation factor of 0.9998, detection limit of 2.287·10–7 at 25–35°C, pH 6.0–12.0, and the best concentration of the filling solution of 10–6M with a fast response time (5–13 s). The direct method were %RSD for 0.5772– –0.7430, %RE for –0.1, 3.7 and %REC for 99.9, 103.7.

DOI: 10.22630/PNIKS.2021.30.1.9

APA style references: Abdullad, Z.K. & Al-Samarrai, S.Y. (2021). Modified solid ion-selective electrode for potentiometric determination of sulfide in oil refineries water. Scientific Review Engineering and Environmental Sciences, 30 (1), 98-105. doi: 10.22630/PNIKS.2021.30.1.9

APA style citation in text: The first time citation in text: (Abdullad & Al-Samarrai, 2021), next citation: (Abdullad & Al-Samarrai, 2021)

Chicago style references: Abdullad, Zeyad K., Shatha Y. Al-Samarrai. "Modified solid ion-selective electrode for potentiometric determination of sulfide in oil refineries water." Scientific Review Engineering and Environmental Sciences, 91 ser., vol. 30, no 1, (2021): 98-105. doi: 10.22630/PNIKS.2021.30.1.9.

Chicago style citation in text: (Abdullad, and Al-Samarrai 2021)

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