发明名称 |
A COLORIMETRIC DEVICE FOR INDICATING CARBON DIOXIDE |
摘要 |
A colorimetric device for indicating carbon dioxide is disclosed, which device contains: a) at least one pH-sensitive indicator dye, b) at least one basic substance selected from the group consisting of quarternary ammonium salts, phosphonium salts and sulphonium salts, and c) at least one member selected from the group consisting of water-insoluble, organic substances of low volatility, which are not susceptible to alkaline hydrolysis and are liquid at room temperature or moderately elevated temperatures.
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申请公布号 |
WO9624054(A1) |
申请公布日期 |
1996.08.08 |
申请号 |
WO1995SE01363 |
申请日期 |
1995.11.16 |
申请人 |
ICOR AB |
发明人 |
LARSSON, ANDERS;OESTBERG, GUNILLA;KRILL, PAUL;GEDEON, ANDRAS |
分类号 |
G01N21/78;G01N31/22;(IPC1-7):G01N31/22 |
主分类号 |
G01N21/78 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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