Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.


Nickel (II)-Selective PVC Membrane Potentiometric Electrode Using 1,4,8,12-Tetraazacyclopentadecane as Ionophore

Author(s): Omer Isildak

A potentiometric sensor based on 1,4,8,12-tetraazacyclopentadecane (ionophore) for the determination of Ni2+ ion has been developed. The optimum membrane contained 2.5% ionophore, 31.0% poly vinylchloride (PVC), 65.0% dibutyl phthalate (DBP) as a solvent mediator, and 0.5% potassium tetrakis p-chlorophenyl borate (KTpClPB), as a counter ion. The all solid–state contact PVC membrane Ni2+–selective potentiometric membrane electrode exhibited high sensitivity and short response time. This sensor demonstrated a working concentration range of 1.0×10-1-1.0×10-5 mol L-1, with a Nernstian behavior and a response time of 6-7 s. The detection limit of the Ni2+-selective membrane electrode was about 2.8 × 10-5 mol L-1. The PVC membrane Ni2+-selective electrode demonstrated with a correlation coefficient r2=0.9563 and usable within the pH range of 4-9, and the lifetime of the sensor was 5 weeks.


SCImago Journal & Country Rank
Recommended Conferences
bornova escort karşıyaka escort osmangazi escort buca escort anne porno fetiş porno anal porno bartın escort burdur escort eskişehir escort escort izmir bursa escort porno escort bayan