Bulletin of the Korean Chemical Society

  • 제27권9호
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  • Pages.1429-1432
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  • 2006
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  • 0253-2964(pISSN)
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  • 1229-5949(eISSN)
대한화학회 (Korean Chemical Society)
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Temperature-controlled Restrictor for UV Detection in Capillary Supercritical Fluid Chromatography

  • Pyo, Dong-Jin (Department of Chemistry, Kangwon National University)
  • 발행 : 2006.09.20
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초록

Polyaromatic hydrocarbons were separated by a capillary supercritical fluid chromatographic (SFC) column and detected by a UV detector at the wavelength of 280 $\mu$m. The temperature-controlled restrictor was designed for UV detection. The temperature-controlled restrictor is a 20 cm length of deactivated fused silica of 7 mm i.d. which is held right after UV detector of the capillary SFC. The temperature of the restrictor will control the flow rate of the supercritical carbon dioxide mobile phase through the capillary column in SFC. Thus as the pressure in the column is increased from 1500 psi to 4000 psi during a pressure program, the temperature of 7 $\mu$m fused-silica tube can be varied from 100 to 350 ${^{\circ}C}$ to maintain a constant flow rate.

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참고문헌

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피인용 문헌

  1. Dynamic control of split flow in packed column supercritical fluid chromatography using dual resistively heated restrictors vol.32, pp.14, 2009, https://doi.org/10.1002/jssc.200900177
  2. Supercritical Fluid Chromatographic Separation of Polyethylene Glycol Polymer vol.29, pp.1, 2008, https://doi.org/10.5012/bkcs.2008.29.1.231
  3. Novel pressure control in supercritical fluid chromatography using a resistively heated restrictor vol.87, pp.3, 2006, https://doi.org/10.1139/v09-005