JP4769940B2 - ホルムアルデヒドの測定方法 - Google Patents
ホルムアルデヒドの測定方法 Download PDFInfo
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- JP4769940B2 JP4769940B2 JP2006042850A JP2006042850A JP4769940B2 JP 4769940 B2 JP4769940 B2 JP 4769940B2 JP 2006042850 A JP2006042850 A JP 2006042850A JP 2006042850 A JP2006042850 A JP 2006042850A JP 4769940 B2 JP4769940 B2 JP 4769940B2
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- mbth
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Description
2 注射器
3 メンブランフィルター
4 標準色列表
5 メンブランフィルター
Claims (2)
- 一定量だけ抽出された試料水に、一定量の3−メチル−2−ベンゾチアゾロンヒドラゾン(以下、MBTHと記載)を添加して、試料水に含有しているホルムアルデヒドをアジンに変換する第一工程と、
前記第一工程による反応が完了した後、一定量の酸化剤を添加して、試料水に残存しているMBTHを酸化型MBTHに変換する第二工程と、
前記アジンと前記酸化型MBTHとが結合することで、青色陽イオン色素が生成される第三工程と、
から構成される初期処理の後、
試料水に、一定量のテトラフェニルホウ酸ナトリウムを添加して、該テトラフェニルホウ酸ナトリウムから生成されたテトラフェニルホウ酸イオンと前記酸化型MBTHとの疎水性相互作用による黄色イオン会合体と、該テトラフェニルホウ酸イオンと前記青色陽イオン色素との疎水性相互作用による青色イオン会合体と、が生成される疎水化工程を実施して、
次に試料水をメンブランフィルター(3)によって濾過する濃縮工程を実施して、
最後に前記メンブランフィルター(3)に定着した色彩と、基準となる標準色列表(4)とを目視比較して濃度を判定することを特徴とするホルムアルデヒドの測定方法。 - 前記メンブランフィルター(3)は、硝酸セルロースを主原料とするセルロース混合エステル製であることを特徴とする請求項1記載のホルムアルデヒドの測定方法。
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JP2006042850A JP4769940B2 (ja) | 2006-02-20 | 2006-02-20 | ホルムアルデヒドの測定方法 |
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JP2006042850A JP4769940B2 (ja) | 2006-02-20 | 2006-02-20 | ホルムアルデヒドの測定方法 |
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JP2007218866A JP2007218866A (ja) | 2007-08-30 |
JP4769940B2 true JP4769940B2 (ja) | 2011-09-07 |
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JP2006042850A Active JP4769940B2 (ja) | 2006-02-20 | 2006-02-20 | ホルムアルデヒドの測定方法 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103308703A (zh) * | 2013-06-04 | 2013-09-18 | 四川大学 | 水样中甲醛的自动分析方法 |
Families Citing this family (2)
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JP4798408B1 (ja) * | 2010-08-30 | 2011-10-19 | 株式会社共立理化学研究所 | 低濃度マンガンの簡易定量法 |
US11994455B2 (en) | 2021-04-01 | 2024-05-28 | Ondavia, Inc. | Analyte quantitation using Raman spectroscopy |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0469570A (ja) * | 1990-07-10 | 1992-03-04 | Terumo Corp | 分析用試験片 |
JP3810645B2 (ja) * | 2001-03-07 | 2006-08-16 | 財団法人電力中央研究所 | 窒素同位体比の測定方法 |
US7112448B2 (en) * | 2001-03-16 | 2006-09-26 | Ethicon, Inc. | MBTH for aliphatic aldehyde measurement |
JP2004333329A (ja) * | 2003-05-08 | 2004-11-25 | National Institute Of Advanced Industrial & Technology | ホルムアルデヒドの分析方法とその装置 |
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- 2006-02-20 JP JP2006042850A patent/JP4769940B2/ja active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN103308703A (zh) * | 2013-06-04 | 2013-09-18 | 四川大学 | 水样中甲醛的自动分析方法 |
CN103308703B (zh) * | 2013-06-04 | 2015-02-04 | 四川大学 | 水样中甲醛的自动分析方法 |
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