Abstract
In this study, we introduce an attractive stationary phase, poly(4-vinylpyridine)-grafted silica (VPn) for normal-phase high-performance liquid chromatography. The retention behavior of polycyclic aromatic hydrocarbons (PAHs) was investigated with VPn column under n-hexane/2-propanol mixture as mobile phase. Conventional octadecylated silica, aminopropyl-bonded silica, bare silica and poly(styrene)-grafted silica columns were used as reference columns. Extremely high retention factors were observed for PAHs but not for alkylbenzenes and distinct higher selectivity towards PAHs was observed for the detailed molecular shape such as planarity and aspect ratio. The reason for these results seems to be a multiple interaction effect including an inductive interaction between the pyridyl and aromatic rings.
| Original language | English |
|---|---|
| Pages (from-to) | 77-82 |
| Number of pages | 6 |
| Journal | Journal of Chromatography A |
| Volume | 1189 |
| Issue number | 1-2 |
| DOIs | |
| Publication status | Published - May 2 2008 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Analytical Chemistry
- Biochemistry
- Organic Chemistry
Cite this
High retentivity and selectivity for polycyclic aromatic hydrocarbons with poly(4-vinylpyridine)-grafted silica in normal-phase high-performance liquid chromatography. / Gautam, Usha Ghimire; Shundo, Atsuomi; Gautam, Mani Prasad; Takafuji, Makoto; Ihara, Hirotaka.
In: Journal of Chromatography A, Vol. 1189, No. 1-2, 02.05.2008, p. 77-82.Research output: Contribution to journal › Article
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TY - JOUR
T1 - High retentivity and selectivity for polycyclic aromatic hydrocarbons with poly(4-vinylpyridine)-grafted silica in normal-phase high-performance liquid chromatography
AU - Gautam, Usha Ghimire
AU - Shundo, Atsuomi
AU - Gautam, Mani Prasad
AU - Takafuji, Makoto
AU - Ihara, Hirotaka
PY - 2008/5/2
Y1 - 2008/5/2
N2 - In this study, we introduce an attractive stationary phase, poly(4-vinylpyridine)-grafted silica (VPn) for normal-phase high-performance liquid chromatography. The retention behavior of polycyclic aromatic hydrocarbons (PAHs) was investigated with VPn column under n-hexane/2-propanol mixture as mobile phase. Conventional octadecylated silica, aminopropyl-bonded silica, bare silica and poly(styrene)-grafted silica columns were used as reference columns. Extremely high retention factors were observed for PAHs but not for alkylbenzenes and distinct higher selectivity towards PAHs was observed for the detailed molecular shape such as planarity and aspect ratio. The reason for these results seems to be a multiple interaction effect including an inductive interaction between the pyridyl and aromatic rings.
AB - In this study, we introduce an attractive stationary phase, poly(4-vinylpyridine)-grafted silica (VPn) for normal-phase high-performance liquid chromatography. The retention behavior of polycyclic aromatic hydrocarbons (PAHs) was investigated with VPn column under n-hexane/2-propanol mixture as mobile phase. Conventional octadecylated silica, aminopropyl-bonded silica, bare silica and poly(styrene)-grafted silica columns were used as reference columns. Extremely high retention factors were observed for PAHs but not for alkylbenzenes and distinct higher selectivity towards PAHs was observed for the detailed molecular shape such as planarity and aspect ratio. The reason for these results seems to be a multiple interaction effect including an inductive interaction between the pyridyl and aromatic rings.
UR - http://www.scopus.com/inward/record.url?scp=41949087719&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=41949087719&partnerID=8YFLogxK
U2 - 10.1016/j.chroma.2007.12.018
DO - 10.1016/j.chroma.2007.12.018
M3 - Article
C2 - 18177660
AN - SCOPUS:41949087719
VL - 1189
SP - 77
EP - 82
JO - Journal of Chromatography A
JF - Journal of Chromatography A
SN - 0021-9673
IS - 1-2
ER -