![Anion recognition through modified calixarenes: a highly selective sensor for monohydrogen phosphate [An article from: Analytica Chimica Acta]](https://www.ebooknetworking.net/books/B00/0RR/bigB000RR3HF6.jpg)
Anion recognition through modified calixarenes: a highly selective sensor for monohydrogen phosphate [An article from: Analytica Chimica Acta]
Book Details
Author(s)V.K. Gupta, R. Ludwig, S. Agarwal
PublisherElsevier
ISBN / ASINB000RR3HF6
ISBN-13978B000RR3HF3
MarketplaceFrance 🇫🇷
Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2005. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
PVC-based membranes of 5,11,17,23,29,35-hexa-tert-butyl-37,38,39,40,41,42-hexakis(carbamoylmethoxy)calix[6]arene (I) as electroactive material with dioctyl phthalate (DOP), 1-chloronaphthalene (CN), dibutyl phthalate (DBP), o-nitrophenyl octyl ether (NPOE) and tris(2-ethylhexyl) phosphate (TEP) as plasticising solvent mediators have been prepared and used for phosphate determination. The membrane having composition PVC:I (150:5.7) exhibited the best result with linear potential response in the concentration range of 1.77x10^-^5 to 1.0x10^-^1M of HPO"4^2^- with a slope of 33.0mV/decade. The membrane worked satisfactorily in non-aqueous medium up to 5% (v/v) non-aqueous content. The selectivity coefficient values for mono- and divalent anions indicate good selectivity for phosphate over a large number of anions. The proposed sensor has been successfully used in the real sample analysis.
Description:
PVC-based membranes of 5,11,17,23,29,35-hexa-tert-butyl-37,38,39,40,41,42-hexakis(carbamoylmethoxy)calix[6]arene (I) as electroactive material with dioctyl phthalate (DOP), 1-chloronaphthalene (CN), dibutyl phthalate (DBP), o-nitrophenyl octyl ether (NPOE) and tris(2-ethylhexyl) phosphate (TEP) as plasticising solvent mediators have been prepared and used for phosphate determination. The membrane having composition PVC:I (150:5.7) exhibited the best result with linear potential response in the concentration range of 1.77x10^-^5 to 1.0x10^-^1M of HPO"4^2^- with a slope of 33.0mV/decade. The membrane worked satisfactorily in non-aqueous medium up to 5% (v/v) non-aqueous content. The selectivity coefficient values for mono- and divalent anions indicate good selectivity for phosphate over a large number of anions. The proposed sensor has been successfully used in the real sample analysis.
