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Determination of Fluorescent Whitening Agents in Paper Materials by Ion-Pair Reversed-Phase High-Performance Liquid Chromatography
- Authors
- Kim, Jeong Soo; Kim, Do Hwan; Kim, Keon
- Issue Date
- 20-12월-2012
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Fluorescent whitening agents; Ion-pair chromatography; Paper materials
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.33, no.12, pp.3971 - 3976
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 33
- Number
- 12
- Start Page
- 3971
- End Page
- 3976
- ISSN
- 0253-2964
- Abstract
- A simple method was developed for the analysis of seven stilbene-type fluorescent whitening agents (FWAs) in paper materials by ion-pair reversed-phase high-performance liquid chromatography with fluorescence detection. These stilbene-type FWAs included two disulfonate, two tetrasulfonate, and three hexasulfonate compounds. After optimization of chromatographic conditions, the FWAs were satisfactorily separated using a reversed-phase column (RP-18) with the following isocratic mobile phase: methanol-water (60:40) containing 17.5 mM TBABr and 10 mM citrate buffer (pH = 7.0). The calibration plot was linear in the range from 5 to 500 ng/mL for two disulfo-FWAs and from 1 to 500 ng/mL for the other five FWAs. Precision levels of the calibration curve as indicated by RSD of response factors were 1.2 and 8.1%. Limits of quantitation (LOQ) ranged from 1.2 to 11 ng/mL.
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