Pawlicova, Z.; Albert-Garcia, JR.; Sahuquillo, I.; García Mateo, JV.; Catalá-Icardo, M.; Martínez Calatayud, J. (2006). Chemiluminescent determination of the pesticide bromoxynil by on-line photodegradation in a flow-injection assembly. Analytical Sciences. 22(1):29-34. https://doi.org/10.2116/analsci.22.29
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/60488
Title:
|
Chemiluminescent determination of the pesticide bromoxynil by on-line photodegradation in a flow-injection assembly
|
Author:
|
Pawlicova, Z.
Albert-Garcia, J. R.
Sahuquillo, I.
García Mateo, J. V.
Catalá-Icardo, Mónica
Martínez Calatayud, J.
|
UPV Unit:
|
Universitat Politècnica de València. Departamento de Química - Departament de Química
Universitat Politècnica de València. Instituto de Investigación para la Gestión Integral de Zonas Costeras - Institut d'Investigació per a la Gestió Integral de Zones Costaneres
|
Issued date:
|
|
Abstract:
|
[EN] A new, robust and simple method is proposed for the chemiluminescent determination of the pesticide Bromoxynil. The empirical procedure is performed with the aid of a flow-injection manifold provided with an on-line ...[+]
[EN] A new, robust and simple method is proposed for the chemiluminescent determination of the pesticide Bromoxynil. The empirical procedure is performed with the aid of a flow-injection manifold provided with an on-line photo-reactor to obtain chemiluminescent photofragments. After a period of 12 s of irradiation with an 8 W low-pressure mercury lamp, a chemiluminescent oxidation was performed with the system potassium permanganate in a polyphosphoric acid medium. The photolysis required a basic medium (KOH 0.014 mol l(-1)) with ethanol (1%) as a sensitizer. The method allowed the determination of 134 samples h(-1) of Bromoxynil in a wide interval of concentrations, over the range 5 x 10(-3) - 1 mg l(-1); the detection limit was 5 x 10(-3) mg l(-1). The RSD (n = 24) at 0.25 mg l(-1) of the pesticide level was 2.3%. The method was applied to a water sample and to a formulation.
[-]
|
Subjects:
|
Bromoxynil
,
Chemiluminescent measurements
,
Flow injection analysis
,
Hydrogen-Ion Concentration
,
Molecular structure
,
Nitriles
,
Photochemistry
,
Sensitivity and specificity
|
Copyrigths:
|
Reserva de todos los derechos
|
Source:
|
Analytical Sciences. (issn:
0910-6340
) (eissn:
1348-2246
)
|
DOI:
|
10.2116/analsci.22.29
|
Publisher:
|
Nihon Bunseki Kagakkai (Japan Society for Analytical Chemistry)
|
Publisher version:
|
http://doi.org/10.2116/analsci.22.29
|
Project ID:
|
info:eu-repo/grantAgreement/MICYT//BQU2002-04248-C02-01/
|
Thanks:
|
This research was supported by Ministerio de Educación y Ciencia (Spanish Government), Project BQU2002-04248-C02-01.
|
Type:
|
Artículo
|