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In-column versus on-column photometric detection in capillary electrochromatography with capillaries packed with octadecylsilica gel

✍ Scribed by Andreas Banholczer; Ute Pyell

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 114 KB
Volume: 10
Category: Article
ISSN: 1040-7685
DOI: 10.1002/(sici)1520-667x(1998)10:4<321::aid-mcs2>3.0.co;2-i

No coin nor oath required. For personal study only.

✦ Synopsis

With capillary electrochromatography CEC performed with capillaries Ž packed with octadecylsilica gel, photometric detection in the visible and in the . Ž . ultraviolet regions is possible in a packed section in-column detection or an Ž . emptied section on-column detection of the separation capillary. The influence of the detection mode on linearity of the calibration function, precision, and detection limit is investigated. It is shown that the signal enhancement due to enrichment of solute in the stationary phase can be quantitatively described with an equation derived elsewhere for in-column fluorescence detection.

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