書誌事項
- タイトル別名
-
- Comparison of Ion-Exchange Resins for the Speciation Analysis of Chromium(III) and Chromium(VI) in Alkaline Solution
- アナリテイカルレポート アルカリ溶液中のクロム(3)とクロム(6)の分別定量のためのイオン交換樹脂の比較
- アナリテイカルレポート アルカリ ヨウエキ チュウ ノ クロム 3 ト クロム 6 ノ フンベツ テイリョウ ノ タメ ノ イオン コウカン ジュシ ノ ヒカク
この論文をさがす
説明
The retention behavior of Cr(III) and Cr(VI) in an alkaline solution (0.28 M Na2CO3/0.5 M NaOH, pH 13.5 ; US EPA Method 3060A) on four kinds of ion-exchange resins was examined. Method 3060A is an alkaline digestion procedure for extracting Cr(VI) in soils, sludges, sediments, and similar waste materials. Two commercially available ion-exchange resins were used in column operation : Dowex 50W-X8 (H+ form and Na+ form) and Dowex 1-X8 (OH− form and Cl− form). Column operation was made by pipetting a 15-mL aliquot of an original alkaline solution or a 10-fold diluted alkaline solution, spiked with Cr(III) and/or Cr(VI) to give 1 mg/mL, through a mini-column containing 2.0 g of ion-exchange resin. To compare the observed data, acidic solutions containing Cr(III) and/or Cr(VI) were also loaded. Then, the 1-mL fractions of the effluent were collected in small test tubes for both pH and flame AAS measurements, and break-through curves were illustrated and analyzed. It was found that both Cr(III) and Cr(VI) were not retained on the Na+ form cation-exchange column using both alkaline solutions. However, a selective separation of Cr(VI) from Cr(III) could be achieved by retaining Cr(III) on the H+ form cation-exchange column using a 10-fold diluted alkaline solution. Therefore, the separated Cr(VI) can be determined by a direct AAS measurement of the resulting effluent. On the OH− form and the Cl− form anion-exchange columns, both Cr(III) and Cr(VI) were retained using a 10-fold diluted alkaline solution. However, a selective separation of Cr(III) from Cr(VI) could be achieved by retaining Cr(VI) on the OH− form and the Cl− form anion-exchange columns using an original alkaline solution. Therefore, the separated Cr(III) could be determined by a direct AAS measurement of the resulting effluent.
収録刊行物
-
- 分析化学
-
分析化学 58 (10), 859-864, 2009
公益社団法人 日本分析化学会
- Tweet
詳細情報 詳細情報について
-
- CRID
- 1390001204354530944
-
- NII論文ID
- 10025980312
-
- NII書誌ID
- AN00222633
-
- COI
- 1:CAS:528:DC%2BD1MXhtlSqtL%2FO
-
- NDL書誌ID
- 10463359
-
- ISSN
- 05251931
-
- 本文言語コード
- ja
-
- データソース種別
-
- JaLC
- NDLサーチ
- Crossref
- CiNii Articles
- OpenAIRE
-
- 抄録ライセンスフラグ
- 使用不可