Characterization of the rapid expansion of supercritical solutions by Fourier transform infrared spectroscopy in situ
A new apparatus for the in situ characterization of the rapid expansion of supercritical solutions (RESS) by Fourier transform infrared spectroscopy is presented. The infrared characterization is complemented by particle sizing with a scanning mobility particle sizer, by three-wavelengths-extinction...
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| Veröffentlicht in: | Review of scientific instruments 2005-05, Vol.76 (5) |
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| creator | Bonnamy, Anthony Hermsdorf, Dana Ueberschaer, Roman Signorell, Ruth |
| description | A new apparatus for the in situ characterization of the rapid expansion of supercritical solutions (RESS) by Fourier transform infrared spectroscopy is presented. The infrared characterization is complemented by particle sizing with a scanning mobility particle sizer, by three-wavelengths-extinction measurements, and by scanning electron microscopy. Several examples show that a wide range of information about particle properties can be obtained with this setup. One new aspect is the possibility to expand into the vacuum which also allows us to investigate the conditions in the collision-free region before the Mach disk. These investigations elucidate that in the free jet region the solvent
C
O
2
condenses to particles with mean radii
>
50
nm
for pre-expansion pressures between
100
–
400
bar
and temperatures between
298
–
398
K
. |
| doi_str_mv | 10.1063/1.1899308 |
| format | Article |
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C
O
2
condenses to particles with mean radii
>
50
nm
for pre-expansion pressures between
100
–
400
bar
and temperatures between
298
–
398
K
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C
O
2
condenses to particles with mean radii
>
50
nm
for pre-expansion pressures between
100
–
400
bar
and temperatures between
298
–
398
K
.</description><subject>ABSORPTION SPECTROSCOPY</subject><subject>CARBON DIOXIDE</subject><subject>EXPANSION</subject><subject>FOURIER TRANSFORM SPECTROMETERS</subject><subject>FOURIER TRANSFORMATION</subject><subject>INFRARED SPECTRA</subject><subject>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</subject><subject>JETS</subject><subject>PARTICLE MOBILITY</subject><subject>PARTICLE PROPERTIES</subject><subject>PARTICLE SIZE</subject><subject>PARTICLES</subject><subject>SCANNING ELECTRON MICROSCOPY</subject><subject>SOLUTIONS</subject><subject>SOLVENTS</subject><subject>WAVELENGTHS</subject><issn>0034-6748</issn><issn>1089-7623</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqdkEFLAzEQhYMoWKsH_0HAk8LWyWY3mz1KsSoUvOg5pNmERtrNMsmK9deb2oJ35zLw5pvH4xFyzWDGQPB7NmOybTnIEzJhINuiESU_JRMAXhWiqeQ5uYjxA_LUjE3IOF9r1CZZ9N86-dDT4GhaW4p68B21X4Pu41GO42DRoE_e6A2NYTPuHyJd7egijOgt0oQZdwG31PcONdqOxsGahCGaMOyySqNP4yU5c3oT7dVxT8n74vFt_lwsX59e5g_LwnBRpqIydSPAAtMrB7VtWqtrIQFaW3LbgnaSNV1brTrZyVpKA1UnhKudy2cLTcWn5ObgG2LyKhqfrFmb0Pc5kiqhKcuSsUzdHiiTY0a0Tg3otxp3ioHat6qYOraa2bsDuzf7Lex_8GfAP1ANneM_B7KIaQ</recordid><startdate>20050501</startdate><enddate>20050501</enddate><creator>Bonnamy, Anthony</creator><creator>Hermsdorf, Dana</creator><creator>Ueberschaer, Roman</creator><creator>Signorell, Ruth</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20050501</creationdate><title>Characterization of the rapid expansion of supercritical solutions by Fourier transform infrared spectroscopy in situ</title><author>Bonnamy, Anthony ; Hermsdorf, Dana ; Ueberschaer, Roman ; Signorell, Ruth</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-4c5760e01abf05e79ea568009e23e90af817d94bd8d8588c04d66f5ff23ee0743</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>ABSORPTION SPECTROSCOPY</topic><topic>CARBON DIOXIDE</topic><topic>EXPANSION</topic><topic>FOURIER TRANSFORM SPECTROMETERS</topic><topic>FOURIER TRANSFORMATION</topic><topic>INFRARED SPECTRA</topic><topic>INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY</topic><topic>JETS</topic><topic>PARTICLE MOBILITY</topic><topic>PARTICLE PROPERTIES</topic><topic>PARTICLE SIZE</topic><topic>PARTICLES</topic><topic>SCANNING ELECTRON MICROSCOPY</topic><topic>SOLUTIONS</topic><topic>SOLVENTS</topic><topic>WAVELENGTHS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bonnamy, Anthony</creatorcontrib><creatorcontrib>Hermsdorf, Dana</creatorcontrib><creatorcontrib>Ueberschaer, Roman</creatorcontrib><creatorcontrib>Signorell, Ruth</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Review of scientific instruments</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bonnamy, Anthony</au><au>Hermsdorf, Dana</au><au>Ueberschaer, Roman</au><au>Signorell, Ruth</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Characterization of the rapid expansion of supercritical solutions by Fourier transform infrared spectroscopy in situ</atitle><jtitle>Review of scientific instruments</jtitle><date>2005-05-01</date><risdate>2005</risdate><volume>76</volume><issue>5</issue><issn>0034-6748</issn><eissn>1089-7623</eissn><coden>RSINAK</coden><abstract>A new apparatus for the in situ characterization of the rapid expansion of supercritical solutions (RESS) by Fourier transform infrared spectroscopy is presented. The infrared characterization is complemented by particle sizing with a scanning mobility particle sizer, by three-wavelengths-extinction measurements, and by scanning electron microscopy. Several examples show that a wide range of information about particle properties can be obtained with this setup. One new aspect is the possibility to expand into the vacuum which also allows us to investigate the conditions in the collision-free region before the Mach disk. These investigations elucidate that in the free jet region the solvent
C
O
2
condenses to particles with mean radii
>
50
nm
for pre-expansion pressures between
100
–
400
bar
and temperatures between
298
–
398
K
.</abstract><cop>United States</cop><doi>10.1063/1.1899308</doi><tpages>8</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0034-6748 |
| ispartof | Review of scientific instruments, 2005-05, Vol.76 (5) |
| issn | 0034-6748 1089-7623 |
| language | eng |
| recordid | cdi_scitation_primary_10_1063_1_1899308 |
| source | AIP Journals Complete; AIP Digital Archive |
| subjects | ABSORPTION SPECTROSCOPY CARBON DIOXIDE EXPANSION FOURIER TRANSFORM SPECTROMETERS FOURIER TRANSFORMATION INFRARED SPECTRA INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY JETS PARTICLE MOBILITY PARTICLE PROPERTIES PARTICLE SIZE PARTICLES SCANNING ELECTRON MICROSCOPY SOLUTIONS SOLVENTS WAVELENGTHS |
| title | Characterization of the rapid expansion of supercritical solutions by Fourier transform infrared spectroscopy in situ |
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