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Liquid electrode plasma-optical emission spectrometry combined with solid-phase preconcentration for on-site analysis of lead
- フォーマット:
- 論文
- 責任表示:
- 牧, 輝弥 ; 長谷川, 浩
- 言語:
- 英語
- 出版情報:
- Elsevier B.V., 2017-08-15
- 著者名:
- 掲載情報:
- Journal of Chromatography B: Analytical Technologies in the Biomedical and Life Sciences
- ISSN:
- 1570-0232
- 巻:
- 1060
- 開始ページ:
- 190
- 終了ページ:
- 199
- バージョン:
- author
- 概要:
- A relatively rapid and precise method is presented for the determination of lead in aqueous matrix. The method consists of analyte quantitation using the liquid electrode plasma-optical emission spectrometry (LEP-OES) coupled with selective … separation/preconcentration by solid-phase extraction (SPE). The impact of operating variables on the retention of lead in SPEs such as pH, flow rate of the sample solution; type, volume, flow rate of the eluent; and matrix effects were investigated. Selective SPE-separation/preconcentration minimized the interfering effect due to manganese in solution and limitations in lead-detection in low-concentration samples by LEP-OES. The LEP-OES operating parameters such as the electrical conductivity of sample solution; applied voltage; on-time, off-time, pulse count for applied voltage; number of measurements; and matrix effects have also been optimized to obtain a distinct peak for the lead at λmax = 405.8 nm. The limit of detection (3σ) and the limit of quantification (10σ) for lead determination using the technique were found as 1.9 and 6.5 ng mL−1, respectively. The precision, as relative standard deviation, was lower than 5% at 0.1 μg mL−1 Pb, and the preconcentration factor was found to be 187. The proposed method was applied to the analysis of lead contents in the natural aqueous matrix (recovery rate: >95%). The method accuracy was verified using certified reference material of wastewaters: SPS-WW1 and ERM-CA713. The results from LEP-OES were in good agreement with inductively coupled plasma optical emission spectrometry measurements of the same samples. The application of the method is rapid (≤5 min, without preconcentration) with a reliable detection limit at trace levels. © 2017 Elsevier B.V.<br />著者所属: 金沢大学理工研究域物質化学系<br />Embargo Period 12 months 続きを見る
- URL:
- http://hdl.handle.net/2297/00048858
類似資料:
日本分析化学会 = The Japan Society for Analytical Chemistry | |
日本分析化学会 = The Japan Society for Analytical Chemistry | |
日本工学教育協会 = Japanese Society for Engineering Education |
The Japan Society for Analytical Chemistry = 日本分析化学会 |
日本化学会 = The Chemical Society of Japan |
The Japan Society for Analytical Chemistry = 日本分析化学会 (JSAC) |
Versita Warsaw and Springer-Verlag | |