Solubility Measurement in Supercritical CO2 with High Pressure UV/VIS Absorption Spectroscopy

Shogo Suzuki; Kimio Aoki; Kunikazu Moribe; Takeshi Sako

doi:10.11491/apcche.2004.0.839.0

Asian Pacific Confederation of Chemical Engineers congress program and abstracts

Session ID : 3P-03-034

DOI https://doi.org/10.11491/apcche.2004.0.839.0

Conference information

Host: The Society of Chemical Engineers, Japan

Solubility Measurement in Supercritical CO₂ with High Pressure UV/VIS Absorption Spectroscopy

Shogo Suzuki, Kimio Aoki, Kunikazu Moribe, Takeshi Sako

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Keywords: Solubility, UV/VIS absorption spectroscopy, Supercritical CO₂, Medicine

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

Solubility measurement using UV/VIS absorption spectrum and integrated Lambert-Beer's equation was developed and compared with the conventional method. As a result, the proposed method was found to be simple, easy to use, applicable to small amount of sample and give the solubility measurement in a supercritical fluid within 5% in accuracy. The solubilities of pesticides, antiseptic and medicines in supercritical CO₂ were measured at 35-70°C and 5-30MPa.

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