Acoustic Determination of the Helium Content of Carbon Dioxide from He Head Pressure Cylinders and FT-IR Studies of the Density of the Resulting Supercritical CO2:  Implications for Reproducibility in Supercritical Experiments

Andreas Kordikowski; Duncan G. Robertson; Martyn Poliakoff

doi:10.1021/ac960573n

Acoustic Determination of the Helium Content of Carbon Dioxide from He Head Pressure Cylinders and FT-IR Studies of the Density of the Resulting Supercritical CO2: Implications for Reproducibility in Supercritical Experiments

Analytical Chemistry ◽

10.1021/ac960573n ◽

1996 ◽

Vol 68 (24) ◽

pp. 4436-4440 ◽

Cited By ~ 22

Author(s):

Andreas Kordikowski ◽

Duncan G. Robertson ◽

Martyn Poliakoff

Keyword(s):

Carbon Dioxide ◽

Supercritical Co2 ◽

Helium Content ◽

Ir Studies ◽

Ft Ir ◽

Head Pressure

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Influence of pressure and time on extraction process using supercritical CO2

Journal of Mining and Metallurgy Section B Metallurgy ◽

10.2298/jmmb0801125m ◽

2008 ◽

Vol 44 (1) ◽

pp. 125-131 ◽

Cited By ~ 1

Author(s):

V. Micic ◽

Z. Lepojevic ◽

B. Mandic ◽

M. Jotanovic ◽

G. Tadic ◽

...

Keyword(s):

Carbon Dioxide ◽

Supercritical Co2 ◽

Particle Diameter ◽

Extraction Process ◽

Salvia Officinalis ◽

Quantitative Composition ◽

Qualitative And Quantitative ◽

Salvia Officinalis L ◽

Carbon Dioxide Co2

The supercritical fluid extraction (SFE) by carbon dioxide (CO2) of Salvia officinalis L. was investigated. SFE by CO2 was performed at different pressure (80, 100, 150, 200 and 300 bar) and constant temperature of 40?C (all other extraction conditions, such are flow rate, particle diameter of Salvia officinalis, extraction time were kept constant. The GC-MS method was used for determination of qualitative and quantitative composition of obtained extracts and essential oils.

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Variable-temperature FT-IR studies on the thermodynamics of carbon dioxide adsorption on a faujasite-type H-Y zeolite

Applied Surface Science ◽

10.1016/j.apsusc.2009.12.114 ◽

2010 ◽

Vol 256 (17) ◽

pp. 5259-5262 ◽

Cited By ~ 24

Author(s):

C. Otero Areán ◽

M. Rodríguez Delgado

Keyword(s):

Carbon Dioxide ◽

Variable Temperature ◽

Carbon Dioxide Adsorption ◽

Y Zeolite ◽

Ir Studies ◽

Ft Ir

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Low-Resolution Gas-Phase FT-IR Method for the Determination of the Limonene/Carvone Ratio in Supercritical CO2-Extracted Caraway Fruit Oils

Journal of Agricultural and Food Chemistry ◽

10.1021/jf010013b ◽

2001 ◽

Vol 49 (7) ◽

pp. 3140-3144 ◽

Cited By ~ 7

Author(s):

Mikko Ahro ◽

Mari Hakala ◽

Juha Sihvonen ◽

Jyrki Kauppinen ◽

Heikki Kallio

Keyword(s):

Gas Phase ◽

Supercritical Co2 ◽

Low Resolution ◽

Ft Ir

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APPLICATION OF MATHEMATICAL MODEL OF NAIK FOR DETERMINATION OF TOTAL EXTRACT YIELD OF HYSSOP OBTAINED BY SUPERCRITICAL EXTRACTION WITH CARBON DIOXIDE

Contemporary Materials ◽

10.7251/comen1701067m ◽

2017 ◽

Vol 8 (1) ◽

Author(s):

Vladan Mićić ◽

Sabina Begić ◽

Pero Dugić ◽

Zoran Petrović

Keyword(s):

Carbon Dioxide ◽

Mathematical Model ◽

Supercritical Co2 ◽

Total Yield ◽

Average Diameter ◽

Supercritical Extraction ◽

Total Extract ◽

Extract Yield ◽

Hyssopus Officinalis

In this paper, supercritical extraction of hyssop (Hyssopus officinalis L.) is performed by using carbon dioxide as extractant. Effect of pressure (80, 100 and 150 bar) on the yield of total extract at a temperature 313 K, flow 0.00323 kg/min and the average diameter of particles 0.49 mm is investigated. For modeling of extraction system hyssop – supercritical CO2, Naik's model is applied, where in the total yield of extract is determined. On the basis of the value of the correlation coefficient |r| (0.976 – 0.992), it was concluded that a very strong correlation was obtained between reciprocal values of the total extract yield and extraction time (1/y i 1/t), so it can be concluded that Naik's model can succesfully be applied for determining yield of total extract.

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