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HPLC-ICP-MS for a comparative study on the extraction approaches for arsenic speciation in terrestrial plant, Ceratophyllum demersum
https://repo.qst.go.jp/records/45447
https://repo.qst.go.jp/records/45447930d63e7-d7bd-4013-b486-db38638d1192
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2009-03-25 | |||||
| タイトル | ||||||
| タイトル | HPLC-ICP-MS for a comparative study on the extraction approaches for arsenic speciation in terrestrial plant, Ceratophyllum demersum | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Zheng, Jian
× Zheng, Jian× Hintelmann, Holger× 鄭 建 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | For the determination of arsenic compounds in terrestrial plant samples, a crucial step is the efficient extraction of arsenic from the solid plant matrix. However, the use of methanol-water extraction often resulted in low extraction efficiencies of less than 50 %. In this study, eight solid-liquid extraction procedures (mainly based on mechanical mixing and sonication) were evaluated for the recovery of arsenic species from a submerged freshwater plant, coontail (Ceratophyllum demersum), collected in Moira River, Ontario, Canada. Speciation of As in the extracts was carried out with both anion-, and cation-exchange HPLC with sector-field inductively coupled plasma mass spectrometric (SF-ICP-MS) detection. The results obtained depended critically on the extraction solvents used in different extraction procedures. Extraction with methanol-water led only to 9 %  44 % recoveries of As. A high extraction yield (approximately 82 %) was obtained by water extraction. Alkaline hydrolysis also resulted in high extraction efficiencies (86 %  98%), but severe oxidation of As(III) to As(V) was observed. A protease enzymatic extraction led to a recovery of 48 %. Approximately 0.5 % of the total As in the plant sample was lipid-soluble. It was found that the extraction of inorganic arsenic species was suppressed by the presence of methanol in the extraction solvents, while high content of methanol in the extraction solvents was effective for the extraction of organic arsenic species. Therefore, it is recommended to perform the extraction both with water alone and with methanol-water (9+1, v/v), in order to obtain the complete As species profile in terrestrial plants. | |||||
| 書誌情報 |
Journal of Radioanalytical and Nuclear Chemistry 巻 280, 号 1, p. 171-179, 発行日 2009-03 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0236-5731 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1007/s10967-008-7440-z | |||||
