5,5-Diethylbarbiturate tubular electrode for use in flow-injection detection systems

José L.F.C. Lima; M. Conceição B.S.M. Montenegro; J. Alonso; J. Bartroli; J. G. Raurich

doi:10.1016/S0003-2670(00)83560-6

5,5-Diethylbarbiturate tubular electrode for use in flow-injection detection systems

José L.F.C. Lima, M. Conceição B.S.M. Montenegro, J. Alonso, J. Bartroli, J. G. Raurich

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

17 Citations (Scopus)

Abstract

The construction, assessment and pharmaceutical appalications of a tubular potentiometric detector sensitive to the 5,5-diethylbarbiturate anion based on quaternary ammonium salt (tetraoctylammonium5,5-diethylbarbiturate) dissolved in o-nitrophenyl octyl ether immobilized in PVC are described. The intrinsic characteristics of the tubular electrode were determined in a low-dispersion manifold and compared with those of a conventional-shaped electrode with no internal reference solution and incorporating the same sensor. The behaviour of a double-channel flow-injection manifold with the same potentiometric detector was evaluated to assess its applicability to the determination of 5,5-diethylbarbiturate in pharmaceutical preparations. Data obtained in the determination of the anion in the latter matrices are presented and compared with those obtained by the conventional British Pharmacopoeia method. © 1990.

Original language	English
Pages (from-to)	221-225
Journal	Analytica Chimica Acta
Volume	234
Issue number	C
DOIs	https://doi.org/10.1016/S0003-2670(00)83560-6
Publication status	Published - 1 Jan 1990

Access to Document

10.1016/S0003-2670(00)83560-6

Fingerprint Dive into the research topics of '5,5-Diethylbarbiturate tubular electrode for use in flow-injection detection systems'. Together they form a unique fingerprint.

Cite this

@article{c41531872ac1486f8add3b4542f33d1e,

title = "5,5-Diethylbarbiturate tubular electrode for use in flow-injection detection systems",

abstract = "The construction, assessment and pharmaceutical appalications of a tubular potentiometric detector sensitive to the 5,5-diethylbarbiturate anion based on quaternary ammonium salt (tetraoctylammonium5,5-diethylbarbiturate) dissolved in o-nitrophenyl octyl ether immobilized in PVC are described. The intrinsic characteristics of the tubular electrode were determined in a low-dispersion manifold and compared with those of a conventional-shaped electrode with no internal reference solution and incorporating the same sensor. The behaviour of a double-channel flow-injection manifold with the same potentiometric detector was evaluated to assess its applicability to the determination of 5,5-diethylbarbiturate in pharmaceutical preparations. Data obtained in the determination of the anion in the latter matrices are presented and compared with those obtained by the conventional British Pharmacopoeia method. {\textcopyright} 1990.",

author = "Lima, {Jos{\'e} L.F.C.} and Montenegro, {M. Concei{\c c}{\~a}o B.S.M.} and J. Alonso and J. Bartroli and Raurich, {J. G.}",

year = "1990",

month = jan,

day = "1",

doi = "10.1016/S0003-2670(00)83560-6",

language = "English",

volume = "234",

pages = "221--225",

number = "C",

}

TY - JOUR

T1 - 5,5-Diethylbarbiturate tubular electrode for use in flow-injection detection systems

AU - Lima, José L.F.C.

AU - Montenegro, M. Conceição B.S.M.

AU - Alonso, J.

AU - Bartroli, J.

AU - Raurich, J. G.

PY - 1990/1/1

Y1 - 1990/1/1

N2 - The construction, assessment and pharmaceutical appalications of a tubular potentiometric detector sensitive to the 5,5-diethylbarbiturate anion based on quaternary ammonium salt (tetraoctylammonium5,5-diethylbarbiturate) dissolved in o-nitrophenyl octyl ether immobilized in PVC are described. The intrinsic characteristics of the tubular electrode were determined in a low-dispersion manifold and compared with those of a conventional-shaped electrode with no internal reference solution and incorporating the same sensor. The behaviour of a double-channel flow-injection manifold with the same potentiometric detector was evaluated to assess its applicability to the determination of 5,5-diethylbarbiturate in pharmaceutical preparations. Data obtained in the determination of the anion in the latter matrices are presented and compared with those obtained by the conventional British Pharmacopoeia method. © 1990.

AB - The construction, assessment and pharmaceutical appalications of a tubular potentiometric detector sensitive to the 5,5-diethylbarbiturate anion based on quaternary ammonium salt (tetraoctylammonium5,5-diethylbarbiturate) dissolved in o-nitrophenyl octyl ether immobilized in PVC are described. The intrinsic characteristics of the tubular electrode were determined in a low-dispersion manifold and compared with those of a conventional-shaped electrode with no internal reference solution and incorporating the same sensor. The behaviour of a double-channel flow-injection manifold with the same potentiometric detector was evaluated to assess its applicability to the determination of 5,5-diethylbarbiturate in pharmaceutical preparations. Data obtained in the determination of the anion in the latter matrices are presented and compared with those obtained by the conventional British Pharmacopoeia method. © 1990.

U2 - 10.1016/S0003-2670(00)83560-6

DO - 10.1016/S0003-2670(00)83560-6

M3 - Article

VL - 234

SP - 221

EP - 225

IS - C

ER -