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- Title
DEVELOPMENT OF CELLULOSIC PAPER-BASED TEST STRIPS FOR Cr(VI) DETERMINATION.
- Authors
Fangong Kong; Yonghao Ni
- Abstract
Paper-based test strips specific for the Cr(VI) determination in aqueous solutions were developed by impregnating a color-forming reagent, diphenylcarbazide, and a quaternary ammonium salt (Aliquat 336) into paper sheets. The results showed that the quaternary ammonium salt could effectively retain the colored complex in the paper substrate. This paper-based test strip showed a high selectivity for Cr(VI) in the samples to be tested. The method was applied to synthetic samples, and the results were compared to these from a reference method. The current work demonstrated that with a color chart, this portable paper-based test strip has the potential to be used for field screening or on-site semiquantitative analysis.
- Subjects
AMMONIUM salts; QUATERNARY ammonium salts; CELLULOSE insulation; AMMONIUM; SALTS
- Publication
BioResources, 2009, Vol 4, Issue 3, p1088
- ISSN
1930-2126
- Publication type
Article
- DOI
10.15376/biores.4.3.1088-1097