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Article: LC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and application
Title | LC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and application |
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Authors | |
Issue Date | 1994 |
Publisher | Preston Publications, Inc. The Journal's web site is located at http://www.j-chrom-sci.com/ |
Citation | Journal Of Chromatographic Science, 1994, v. 32 n. 4, p. 157-161 How to Cite? |
Abstract | The application of the intense ultraviolet π-π* transition absorption band at 261 nm for indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile phase additive is studied. The results are compared with those obtained using the conventional absorption band at 447 nm for the d-π* charge transfer transition. Variation of the concentration of Ru(phen)3(ClO4)2 is shown to influence the sensitivity of the methods with absorption at the two wavelengths. Use of a low Ru complex concentration is found to reduce noise and increase the gain in absorbance per mole RuL3 2+ liberated, resulting in an increase in the signal-to-noise ratio. Using 0.01mM Ru(phen)3(ClO4)2 and 261 nm as the absorption wavelength, the detection limits of the method as measured by 2 times the noise level for F-, Cl-, Br-, and NO3 - are 5 ppb (0.1 ng), 5 ppb (0.1 ng), 10 ppb (0.2 ng), and 10 ppb (0.2 ng), respectively. |
Persistent Identifier | http://hdl.handle.net/10722/167521 |
ISSN | 2023 Impact Factor: 1.5 2023 SCImago Journal Rankings: 0.342 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Fung, YS | en_US |
dc.contributor.author | Tam, WM | en_US |
dc.date.accessioned | 2012-10-08T03:08:03Z | - |
dc.date.available | 2012-10-08T03:08:03Z | - |
dc.date.issued | 1994 | en_US |
dc.identifier.citation | Journal Of Chromatographic Science, 1994, v. 32 n. 4, p. 157-161 | en_US |
dc.identifier.issn | 0021-9665 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/167521 | - |
dc.description.abstract | The application of the intense ultraviolet π-π* transition absorption band at 261 nm for indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile phase additive is studied. The results are compared with those obtained using the conventional absorption band at 447 nm for the d-π* charge transfer transition. Variation of the concentration of Ru(phen)3(ClO4)2 is shown to influence the sensitivity of the methods with absorption at the two wavelengths. Use of a low Ru complex concentration is found to reduce noise and increase the gain in absorbance per mole RuL3 2+ liberated, resulting in an increase in the signal-to-noise ratio. Using 0.01mM Ru(phen)3(ClO4)2 and 261 nm as the absorption wavelength, the detection limits of the method as measured by 2 times the noise level for F-, Cl-, Br-, and NO3 - are 5 ppb (0.1 ng), 5 ppb (0.1 ng), 10 ppb (0.2 ng), and 10 ppb (0.2 ng), respectively. | en_US |
dc.language | eng | en_US |
dc.publisher | Preston Publications, Inc. The Journal's web site is located at http://www.j-chrom-sci.com/ | en_US |
dc.relation.ispartof | Journal of Chromatographic Science | en_US |
dc.title | LC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and application | en_US |
dc.type | Article | en_US |
dc.identifier.email | Fung, YS:ysfung@hku.hk | en_US |
dc.identifier.authority | Fung, YS=rp00697 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-0028408552 | en_US |
dc.identifier.volume | 32 | en_US |
dc.identifier.issue | 4 | en_US |
dc.identifier.spage | 157 | en_US |
dc.identifier.epage | 161 | en_US |
dc.identifier.isi | WOS:A1994NE06200008 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Fung, YS=13309754700 | en_US |
dc.identifier.scopusauthorid | Tam, WM=7102605527 | en_US |
dc.identifier.issnl | 0021-9665 | - |