Superheated water chromatography of low molecular weight polyethylene glycols with ultraviolet detection.

نویسندگان

  • Takashi Yarita
  • Ryoji Nakajima
  • Kayori Shimada
  • Shinichi Kinugasa
  • Masami Shibukawa
چکیده

Superheated water chromatography (SWC) with ultraviolet detection was applied to the separation of low molecular weight polyethylene glycols (PEGs). PEG oligomers could be detected sensitively when the detection wavelength was set at 190 nm. The effect of column temperature on the separation of PEG oligomers was investigated. The elution time of all PEG oligomers decreased with increase in the column temperature; linear relationships were obtained between ln k and 1/T. A temperature-programmed SWC separation enabled the baseline separation of a PEG 200 sample within 50 min.

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عنوان ژورنال:
  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

دوره 21 8  شماره 

صفحات  -

تاریخ انتشار 2005