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天然水分析のための感温性高分子を用いる水中微量重金属の分離・濃縮
https://doi.org/10.57375/00000122
https://doi.org/10.57375/000001222a339431-113c-4f75-9345-7107da980657
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
kiyou4145.pdf (3.2 MB)
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| Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2011-08-04 | |||||
| タイトル | ||||||
| タイトル | 天然水分析のための感温性高分子を用いる水中微量重金属の分離・濃縮 | |||||
| タイトル | ||||||
| タイトル | Preconcentration of trace heavy metals in aqueous solutions by thermoresponsive polymer-mediated extraction for the analysis of natural water | |||||
| 言語 | en | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | water analysis | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | preconcentration | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | polymer-mediated extraction | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | N-isopropylacrylamide | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | trace heavy metal ion | |||||
| キーワード | ||||||
| 主題Scheme | Other | |||||
| 主題 | pyrrolidinedithiocarbamate | |||||
| 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 | departmental bulletin paper | |||||
| ID登録 | ||||||
| ID登録 | 10.57375/00000122 | |||||
| ID登録タイプ | JaLC | |||||
| 著者 |
田中, 智一
× 田中, 智一× 穴田, 博之× Tanaka, Tomokazu× Anada, HiroyukI |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | In the preconcentration of trace heavy metals in aqueous solutions with poly(N-isopropylacrylamide) (PNIPAAm), the synthetic method of PNIPAAm was investigated to reduce the dissolution time of precipitated polymer phase with N,N-dimethylmethanamide (DMF) and to improve the measurement reproducibility of graphite-furnace atomic absorption spectrometry (GF-AAS). PNIPAAm was synthesized by using NIPAAm in the range of 8 to 11.5 g. The dissolution time of precipitated polymer phase increased when the amount of NIPAAm was less than previously used weight (11.5 g). PNIPAAm was synthesized by changing the addition amount of N,N,N',N'-tetramethylethane- 1,2-diamine (TEMED) from 0.5 to 50 ml. Both the dissolution time and the viscosity of dissolved solution were greatly reduced by adding 50 ml of TEMED. The sample solution containing analytes of 0.5 ng ml-1 each was concentrated with the PNIPAAm synthesized by using 11.5 g of NIPAAm and 50 ml of TEMED. A 5-μl aliquot of the resulting solution was measured by GF-AAS. The determined concentrations of analytes were ranging from 20 to 30 ng ml-1, and relative standard deviations (RSDs, n = 3) were ca. 4%. Although the RSDs significantly improved compared to previously obtained values (more than 15%), the loss of metal chelates was found during the measurement of GF-AAS. Further investigation on the measurement of GF-AAS, such as the use of different chelating agents and the addition of a matrix modifier, is required in order to apply the proposed method to the analysis of natural water. | |||||
| 書誌情報 |
福井工業大学研究紀要 号 41, p. 360-363, 発行日 2011-08-04 |
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| 出版者 | ||||||
| 出版者 | 福井工業大学 | |||||
| 書誌レコードID | ||||||
| 識別子タイプ | NCID | |||||
| 関連識別子 | TF00008581 | |||||
| 著者版フラグ | ||||||
| 出版タイプ | VoR | |||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
