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A multi-channel photometric detector for multi-component analysis in flow injection analysis

The detector, a multi-channel photometric detector, described in this paper was developed using multi-wavelength LEDs (light emitting diode) and phototransistors for absorbance measurement controlled by an Intel 8031 8-bit single chip microcomputer. Up to four flow cells can be attached to the detec...

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Detalles Bibliográficos
Autores principales: Tan, Aimin, Huang, Jialin, Geng, Liudi, Xu, Jinhua, Zhao, Xinna
Formato: Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 1994
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2562826/
https://www.ncbi.nlm.nih.gov/pubmed/18924688
http://dx.doi.org/10.1155/S1463924694000088
Descripción
Sumario:The detector, a multi-channel photometric detector, described in this paper was developed using multi-wavelength LEDs (light emitting diode) and phototransistors for absorbance measurement controlled by an Intel 8031 8-bit single chip microcomputer. Up to four flow cells can be attached to the detector. The LEDs and phototransistors are both inexpensive, and reliable. The results given by the detector for simultaneous determination of trace amounts of cobalt and cadmium in zinc sulphate electrolyte are reported. Because of the newly developed detector, this approach employs much less hardware apparatus than by employing conventional photometric detectors.