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dc.contributor.authorKritsana Jitmaneeen_US
dc.contributor.authorJaroon Jakmuneeen_US
dc.contributor.authorSomchai Lapanantnoppakhunen_US
dc.contributor.authorSunanta Wangkarnen_US
dc.contributor.authorNorio Teshimaen_US
dc.contributor.authorTadao Sakaien_US
dc.contributor.authorGary D. Christianen_US
dc.contributor.authorKate Grudpanen_US
dc.description.abstractDerivative techniques for analytical signal processing are useful for solving some noise and signal resolution problems in various fields of study such as titrimetry, spectrophotometry, chromatography and electrochemistry. The broad use of these techniques, however, is often limited by costly inflexible built-in software packages in commercial analytical instruments. We propose here the application of commercial simple software packages such as Microsoft® Excel and Microcal Origin for signal smoothing and fitting, and for obtaining derivative analytical signals in batch and flow-based analyses, including potentiometric titration, spectrophotometry, chromatography, voltammetry and sequential injection analysis (SIA). The worldwide (especially Excel) software packages are easy-to-use for less experienced users and have also capabilities for advanced users, and therefore employing such packages can result in expansion of useful derivative techniques. We demonstrate application of the available package-aided derivative capabilities for enhancing some chemical analyses, including potentiometric acid-base titration, Bradford assay of protein, chromatographic separation of ajmaline and reserpine and anodic stripping voltammetry of copper. The derivative signals from smoothed and fitted curves offer better accuracy and precision, even for non-resolving peaks and tailing peaks. In some cases, the optimization of experimental conditions is not further required, which can lead to fast method development. © 2007.en_US
dc.titleEnhancing chemical analysis with signal derivatization using simple available software packagesen_US
article.title.sourcetitleMicrochemical Journalen_US
article.volume86en_US Mai Universityen_US Institute of Technologyen_US of Washington, Seattleen_US
Appears in Collections:CMUL: Journal Articles

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