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ID 116767
著者
Otsuka, Yuta Tokyo University of Science
Watanabe, Hiroki Tokushima University
キーワード
Flow analysis
simultaneous quantification
peak resolution
partial least squares regression
資料タイプ
学術雑誌論文
抄録
We propose an approach for the simultaneous determination of multiple component (i.e., Na+ and NH4+) solutions based on open tubular ion chromatography (OTIC) coupled with chemometrics. The sample solutions containing Na+ and NH4+ (0 – 500 μM) were prepared at various concentration ratios. The samples were analyzed by OTIC within the time range of t = 0 – 18.0 min. The partial least squares (PLS) regression method was applied to the acquired chromatograms in order to predict ionic concentrations. The constructed PLS regression models were able to predict Na+ and NH4+ concentrations. The regression vectors of the Na+ and NH4+ prediction models yielded positive peaks at 11.8 min and 13.3 min, respectively. The determination coefficient between predicted and measured cation concentration were respectively 0.9187 for Na+ and 0.9314 for NH4+. The combination of the OTIC and PLS regression methods was useful for the determination of ionic concentrations under unresolved chromatogram peak conditions.
掲載誌名
Journal of Flow Injection Analysis
ISSN
0911775X
24337374
cat書誌ID
AA10962565
出版者
Japanese Association for Flow Injection Analysis
37
2
開始ページ
73
終了ページ
77
発行日
2020
EDB ID
出版社版DOI
出版社版URL
フルテキストファイル
言語
eng
著者版フラグ
出版社版
部局
薬学系