2020年2月10日
Evaluation of the Calibration Method for Accurate Analysis of Dissolved Silica by Continuous Flow Analysis
Analytical Sciences
- ,
- ,
- ,
- 巻
- 36
- 号
- 2
- 開始ページ
- 247
- 終了ページ
- 253
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2116/analsci.19p291
- 出版者・発行元
- Japan Society for Analytical Chemistry
For accurately determining nutrients in seawater by continuous flow analysis (CFA), the characteristic of the calibration curve was examined in detail. Under absorbance below 0.8, the calibration curve and the bracketing methods showed more accurate results that the bias fell below 0.5%. The analytical results of dissolved silica in seawater from the nutrient maximum layer of the Pacific Ocean obtained by the proposed methods showed good agreement with those obtained by an ion exclusion chromatography postcolumn absorption spectrophotometry (IEC-postcolumn) and an ion exclusion chromatography isotope dilution ICP mass spectrometry (IEC-ID-ICP-MS). From the results, the analysis of nutrients in seawater could be accurately carried out by CFA with an expanded uncertainty of below 1% using both the calibration curve and the bracketing methods with an appropriate absorbance range.
- リンク情報
- ID情報
-
- DOI : 10.2116/analsci.19p291
- ISSN : 1348-2246
- eISSN : 1348-2246
- ORCIDのPut Code : 98269099
- Web of Science ID : WOS:000512322400016