INTEGRATED RETENTION SPECTROPHOTOMETRIC DETECTION METHOD FOR THE DETERMINATION OF FORMALDEHYDEReportar como inadecuado




INTEGRATED RETENTION SPECTROPHOTOMETRIC DETECTION METHOD FOR THE DETERMINATION OF FORMALDEHYDE - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Resumen

An integrated-sensor method for the determination of formaldehyde based on retention of the reaction product of the analyte with p-rosaniline and sulfite in a flow-cell packed with Dowex 1-X-8 anion exchange resin was developed. The method has a good selectivity with a detection limit of 0.3 mug ml-1 1 ml sample or 75 ng ml-1 2 ml sample, and a linear range between 1-30 mug ml-1. The relative standard deviations n = 11 were 2.8 and 1.3% for 2 and 20 mug ml-1 formaldehyde, respectively. Depending on the working conditions, the sampling frenquency ranged between 10 and 18 h-1. The method was applied to the determination of formaldehyde in well water.Nota general

Artículo de publicación ISI



Autor: De Castro, M. D. L.; - Richter Duk, Pablo; - Valcarcel, Miguel; -

Fuente: http://repositorio.uchile.cl/



DESCARGAR PDF




Documentos relacionados