Integration of a contactless conductivity detector into a commercial capillary cassette. Detection of inorganic cations and catecholamines.
J Chromatogr A
; 990(1-2): 45-52, 2003 Mar 21.
Article
en En
| MEDLINE
| ID: mdl-12685582
ABSTRACT
A contactless conductivity detector integrated into the capillary cassette of Agilent (3D)CE equipment is described. The detector is user-friendly, compact and easily modified. The UV detector of the (3D)CE equipment is available parallel with the contactless conductivity detector increasing the detection power. Two electrolyte solutions, 2-(N-morpholino)ethanesulfonic acid-histidine solution (20 mM, pH 6.0) and ammonium acetate (10 mM, pH 4.0), were used as the separation media for inorganic cations and organic catecholamines, respectively. The detection limit for all metal cations except barium was under 0.5 mg/l, and that for four catecholamines was ca. 10 mg/l. This last value was the same order of magnitude as achieved with parallel UV detection.
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Bases de datos:
MEDLINE
Asunto principal:
Catecolaminas
/
Cationes
/
Electroforesis Capilar
/
Conductividad Eléctrica
Tipo de estudio:
Diagnostic_studies
Idioma:
En
Revista:
J Chromatogr A
Año:
2003
Tipo del documento:
Article
País de afiliación:
Finlandia