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  • Buffer memory technique  (1)
  • Capillary columns  (1)
  • Micro LC systems  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Microcolumn liquid chromatography/Fourier transform infrared spectrometry interface using a potassium bromide disk (1987)
    Springer
    Chromatographia 23 (1987), S. 512-516 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Liquid chromatography ; Fourier transform infrared spectrometry ; Microcolumns ; Buffer memory technique
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary A redesigned interface is reported for use in the detection of microcolumn liquid chromatographic effluents with a Fourier transform infrared spectrometer. The solutes eluting from the column are continuously deposited onto a 50mm diameter KBr disk as a “buffer-memory”. The disk is rotated by a stepper motor with a controlling electronics. After the chromatographic run, the disk is simply transferred to the spectrometer and the transmission spectra are measured as the disk rotates. The use of such a large KBr disk as a substrate permits to obtain spectra of the components having a large capacity factor.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02309421
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
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  • 2
    Digitale Medien
    Digitale Medien
    Infrared monitoring in micro-capillary liquid chromatography (1983)
    Springer
    Chromatographia 17 (1983), S. 259-261 
    Details
    ISSN: 1612-1112
    Schlagwort(e): Liquid chromatography ; Infrared detection ; Capillary packed columns ; Micro LC systems
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Chemie und Pharmazie
    Notizen: Summary The performance of a new IR monitoring system was investigated with a fused-silica packed capillary column. The concept of the system is to select solvents which do not have IR absorption at the wavelength where the detector will be operated (e.g., perdeutero-or perhalogeno-compounds) and to use a tefion flow cell. The results show the minimum detectable limit at the submicrogram level for n-hexane and n-dodecane with a short packed capillary column.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF02263035
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
  • 3
    Digitale Medien
    Digitale Medien
    Refractive index detection in slurry-packed capillary column LC (1986)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 9 (1986), S. 623-626 
    Details
    ISSN: 0935-6304
    Schlagwort(e): Column liquid chromatography ; Capillary columns ; Refractive index detection ; Chemistry ; Analytical Chemistry and Spectroscopy
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: An existing commercial refractive index detector was modified for use with slurry-packed capillary column LC systems. The cell gasket of the original detector cell was replaced by a micro cell gasket giving a volume of 0.8 μL. The relationship between detector response and the amount of sample injected was examined. The limit of detection was 2-3 ng for di-n-pentyl phthalate.
    Zusätzliches Material: 3 Ill.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1002/jhrc.1240091105
    Standort Signatur Erwartet Verfügbarkeit
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    Artikel (Nationallizenzen)
    Volltext
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