Electrochemically modulated liquid chromatography using a boron-doped diamond particle stationary phase.
Electrochemically modulated liquid chromatography using a boron-doped diamond particle stationary phase.
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使用掺硼金刚石颗粒固定相的电化学调制液相色谱。
DOI:
10.1016/j.chroma.2008.09.069
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发表时间:
2008
期刊:
影响因子:
--
通讯作者:
Porter,MarcD
中科院分区:
文献类型:
--
作者:
Muna,GraceW;Swope,VernonM;Swain,GregM;Porter,MarcD
This paper reports on preliminary tests of the performance of boron-doped diamond powder (BDDP) as a stationary phase in electrochemically modulated liquid chromatography (EMLC). EMLC manipulates retention through changes in the potential applied (Eappl) to a conductive packing. Porous graphitic carbon (PGC) has routinely been utilized as a material in EMLC separations. Herein the utility of BDDP as a stationary phase in EMLC was investigated and its stability, both compositionally and microstructurally, relative to PGC was compared. The results show that BDDP is stable over a wide range of Eapplvalues (i.e., −1.2 to +1.2V vs. Ag/AgCl, sat’d NaCl). The data also reveal that electrostatics play a key role in the adsorption of the aromatic sulfonates on the BDDP stationary phase, and that these analytes are more weakly retained in comparison to the PGC support. The potential for this methodology to provide a means to advance the understanding of molecular adsorption and retention mechanisms on carbonaceous materials is briefly discussed.
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DOI:
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发表时间:
1998
期刊:
影响因子:
--
作者:
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通讯作者:
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影响因子:
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DOI:
--
发表时间:
2007
期刊:
影响因子:
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DOI:
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期刊:
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DOI:
--
发表时间:
1988
期刊:
影响因子:
--
作者:
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