Indirect photometric detection of boron cluster anions electrophoretically separated in methanol
Jazyk angličtina Země Nizozemsko Médium print-electronic
Typ dokumentu časopisecké články, práce podpořená grantem
PubMed
24630978
DOI
10.1016/j.chroma.2014.02.060
PII: S0021-9673(14)00307-0
Knihovny.cz E-zdroje
- Klíčová slova
- Boron cluster, Capillary electrophoresis, Indirect photometry, Ion pair, Methanol, Mobility,
- MeSH
- anionty chemie MeSH
- bor chemie MeSH
- elektroforéza kapilární metody MeSH
- elektrolyty MeSH
- fotometrie metody MeSH
- methanol chemie MeSH
- tromethamin chemie MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Názvy látek
- anionty MeSH
- bor MeSH
- elektrolyty MeSH
- methanol MeSH
- tromethamin MeSH
3,5-Dinitrobenzoate and picrate are light absorbing anions pertinent to indirect photometric detection of boron cluster anions in buffered methanolic background electrolytes (BGEs). Tris(hydroxymethyl)aminomethane and morpholine have been used as buffering bases, which eliminated baseline steps, and minimized the baseline noise. In methanolic BGEs, mobilities of boron cluster anions depend on both ionic constituents of the BGE buffer. This dependence can be explained by ion pair interaction of detected anions with BGE cations, which are not bonded into ion pairs with the BGE anions. The former ion pair interaction decreases sensitivity of the indirect photometric detection.
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