Abstract
Particle-size and mass distribution curves, along with information on particle porosity, density, shape, and aggregation, can be obtained for submicrometer- and supramicrometer-size silica materials suspended in either aqueous or nonaqueous media by field-flow fractionation (FFF). Narrow fractions can readily be collected for confirmation or further characterization by microscopy and other means. Among the silicas examined were different types of colloidal microspheres, fumed silica, and various chromatographic supports. Size distribution curves for aqueous silica suspensions were obtained by both sedimentation FFF and flow FFF and for nonaqueous suspensions by thermal FFF. Populations of aggregates and oversized particles were isolated and identified in some samples. The capability of FFF to achieve the high-resolution fractionation of silica is confirmed by the collection of fractions and their examination by electron microscopy.
| Original language | English |
|---|---|
| Title of host publication | Colloidal Silica |
| Subtitle of host publication | Fundamentals and Applications |
| Publisher | CRC Press |
| Pages | 549-564 |
| Number of pages | 16 |
| ISBN (Electronic) | 9781420028706 |
| ISBN (Print) | 9780824709679 |
| Publication status | Published - 2005 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
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Characterization of colloidal and particulate silica by field-flow fractionation. / Giddings, J. Calvin; Ratanathanawongs, S. Kim; Barman, Bhajendra N.; Moon, Myeong Hee; Liu, Guangyue; Tjelta, Brenda L.; Hansen, Marcia E.
Colloidal Silica: Fundamentals and Applications. CRC Press, 2005. p. 549-564.Research output: Chapter in Book/Report/Conference proceeding › Chapter
TY - CHAP
T1 - Characterization of colloidal and particulate silica by field-flow fractionation
AU - Giddings, J. Calvin
AU - Ratanathanawongs, S. Kim
AU - Barman, Bhajendra N.
AU - Moon, Myeong Hee
AU - Liu, Guangyue
AU - Tjelta, Brenda L.
AU - Hansen, Marcia E.
PY - 2005/1/1
Y1 - 2005/1/1
N2 - Particle-size and mass distribution curves, along with information on particle porosity, density, shape, and aggregation, can be obtained for submicrometer- and supramicrometer-size silica materials suspended in either aqueous or nonaqueous media by field-flow fractionation (FFF). Narrow fractions can readily be collected for confirmation or further characterization by microscopy and other means. Among the silicas examined were different types of colloidal microspheres, fumed silica, and various chromatographic supports. Size distribution curves for aqueous silica suspensions were obtained by both sedimentation FFF and flow FFF and for nonaqueous suspensions by thermal FFF. Populations of aggregates and oversized particles were isolated and identified in some samples. The capability of FFF to achieve the high-resolution fractionation of silica is confirmed by the collection of fractions and their examination by electron microscopy.
AB - Particle-size and mass distribution curves, along with information on particle porosity, density, shape, and aggregation, can be obtained for submicrometer- and supramicrometer-size silica materials suspended in either aqueous or nonaqueous media by field-flow fractionation (FFF). Narrow fractions can readily be collected for confirmation or further characterization by microscopy and other means. Among the silicas examined were different types of colloidal microspheres, fumed silica, and various chromatographic supports. Size distribution curves for aqueous silica suspensions were obtained by both sedimentation FFF and flow FFF and for nonaqueous suspensions by thermal FFF. Populations of aggregates and oversized particles were isolated and identified in some samples. The capability of FFF to achieve the high-resolution fractionation of silica is confirmed by the collection of fractions and their examination by electron microscopy.
UR - http://www.scopus.com/inward/record.url?scp=85056387857&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85056387857&partnerID=8YFLogxK
M3 - Chapter
AN - SCOPUS:85056387857
SN - 9780824709679
SP - 549
EP - 564
BT - Colloidal Silica
PB - CRC Press
ER -