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URIhttp://ypir.lib.yamaguchi-u.ac.jp/tr/metadata/109
タイトルμPADによる六価クロムの高感度定量
タイトル別表記Sensitive Determination of Hexavalent Chromium Using a μPAD
作成者浅野, 比
前田, 大志朗
白石, 幸英
作成者ヨミアサノ, ヒトシ
マエダ, タイシロウ
シライシ, ユキヒデ
作成者別表記ASANO, Hitoshi
MAEDA, Taishirou
SHIRAISHI, Yukihide
著者キーワードMicrofluidic paper-based analytical device
Hexavalent chromium
Diphenylcarbazide colorimetric reaction
マイクロ流体ペーパー分析デバイス
六価クロム
ジフェニルカルカルバジド呈色反応
資料タイプtext
ファイル形式application/pdf
内容記述(抄録等) Chromium has diverse oxidation states, the charges of +3 and +6 for chromium occur the most commonly within chromium compounds. Trivalent chromium (Cr(III)) is not toxic and is essential for living organisms. On the other hand, hexavalent chromium (Cr(VI)) is known to has the strong ability to oxidize and to be a carcinogen. Therefore, it is important selectively to determine of Cr(VI) for the analysis of chromium due to the difference of toxicity between Cr(III) and Cr(VI). 1, 5-Diphenylcarbazide (DPC) is a reagent which selectively reacts with Cr(VI) to color violet complex. We have developed a simple and sensitive analysis of Cr (VI) using a micro fluidic paper-based analytical device (μPAD) with the DPC colorimetric reaction. The fabrication of μPADs was carried out by melting wax with an oven after the pattern was printed with a wax printer. The detection spots were dropped DPC solution and dried. Then, the sample solution was dropped into the sampling spot and wicked to the detection spots. μPAD was scanned with a scanner, the color intensity for the detection spots was analyzed by an image analysis software. The RGB intensity of the images was analyzed, and the highest sensitivity was obtained when G-intensity was used. The detection limit of this device for the Cr(VI) analysis was 26.2 μg/L, the sensitivity for present method has been enhanced compared to the previous method (30 mg/L).
出版者山陽小野田市立山口東京理科大学
出版者ヨミサンヨウオノダシリツ ヤマグチトウキョウリカダイガク
Nii資料タイプ紀要論文
本文言語jpn
ISSN2434-2866
掲載誌名山陽小野田市立山口東京理科大学紀要
4
開始ページ1
終了ページ5
発行日2021-03-31
著者版/出版社版出版社版
リポジトリIDSU10004000001
ファイルSU10004000001.pdf ( 1.1MB ) 公開日 2021-06-30
地域区分山口東京理科大学