Highly Sensitive and Selective Poly(vinyl chloride)-Membrane Potentiometric Sensors Based on a Calix[4]arene Derivative for 2-Furaldehyde

2009 ◽  
Vol 81 (16) ◽  
pp. 6789-6796 ◽  
Author(s):  
Mojtaba Shamsipur ◽  
Ali Akbar Miran Beigi ◽  
Mohammad Teymouri ◽  
Solmaz Rasoolipour ◽  
Zouhair Asfari
Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2297 ◽  
Author(s):  
Dana Vlascici ◽  
Nicoleta Plesu ◽  
Gheorghe Fagadar-Cosma ◽  
Anca Lascu ◽  
Mihaela Petric ◽  
...  

Pt(II) 5,10,15,20-tetra(4-methoxy-phenyl)-porphyrin (PtTMeOPP) was used in the construction of new ion-selective sensors. The potentiometric response characteristics (slope and selectivity) of iodide and bromide-selective electrodes based on (PtTMeOPP) metalloporphyrin in o-nitrophenyloctylether (NPOE), dioctylphtalate (DOP) and dioctylsebacate (DOS) plasticized poly(vinyl chloride) membranes are compared. The best results were obtained for the membranes plasticized with DOP and NPOE. The sensors have linear responses with near-Nernstian slopes toward bromide and iodide ions and good selectivity. The membrane plasticized with NPOE was electrochemically characterized using the EIS method to determine its water absorption and the diffusion coefficient into the membrane.


2015 ◽  
Vol 55 (10) ◽  
pp. 892-900 ◽  
Author(s):  
E. G. Kulapina ◽  
N. M. Makarova ◽  
O. I. Kulapina ◽  
I. A. Utc ◽  
V. V. Baraguzina

The Analyst ◽  
1999 ◽  
Vol 124 (9) ◽  
pp. 1319-1322 ◽  
Author(s):  
Mohammad K. Amini ◽  
Said Shahrokhian ◽  
Shahram Tangestaninejad

1992 ◽  
Vol 45 (6) ◽  
pp. 983 ◽  
Author(s):  
TJ Cardwell ◽  
RW Cattrall ◽  
LW Deady ◽  
KA Murphy ◽  
SS Tan

The synthesis of some macrocyclic compounds based on 1,8-naphthyridine and 1,10-phenanthroline with rings containing four and five oxygen atoms is reported. These compounds were tested for cation selectivity in poly(vinyl chloride)-based potentiometric sensors. Nernstian esponse was observed towards the potassium ion but with low discrimination for potassium in the presence of other cations. Dimethyl 4-octyloxy-1,10-phenanthroline-2,9-dicarboxylate, a precursor to one of the macrocyclic series, showed a high preference for divalent cations such as Zn2+, Ba2+, Cu2+ and Co2+. .


2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
F. T. C. Moreira ◽  
R. B. Queirós ◽  
L. A. A. Truta ◽  
T. I. Silva ◽  
R. M. Castro ◽  
...  

A new biomimetic sensor for leucomalachite green host-guest interactions and potentiometric transduction is presented. The artificial host was imprinted in methacrylic acid or acrylamido-2-methyl-1-propanesulfonic acid-based polymers. Molecularly imprinted particles were dispersed in 2-nitrophenyloctyl ether and trapped in poly(vinyl chloride). The potentiometric sensors exhibited a near-Nernstianresponse in steady state evaluations, with slopes and detection limits ranging from 45.8 to 81.2 mVdecade-1and 0.28 to 1.01 μg mL-1, respectively. They were independent from the pH of test solutions within 3 to 5. Good selectivity was observed towards drugs that may contaminate water near fish cultures, such as oxycycline, doxycycline, enrofloxacin, trimethoprim, creatinine, chloramphenicol, and dopamine. The sensors were successfully applied to field monitoring of leucomalachite green in river samples. The method offered the advantages of simplicity, accuracy, applicability to colored and turbid samples, and automation feasibility.


Sign in / Sign up

Export Citation Format

Share Document