发明名称 |
Quick acting toxic ammonia test for aqueous samples |
摘要 |
<p>A method, test reagent and device usable as a test strip for detecting toxic ammonia levels in water samples such as aquarium water. The volume of the water to be tested contacted with a soda lime reagent to raise the pH to at least 10, and simultaneously contacted with a hydrophobic barrier membrane capable of allowing only ammonia gas to pass through. The membrane is coated with a pH chromogenic indicator mixture which changes color if ammonia gas passes through. The color response of the sample is compared with standard color charts to determine the toxic ammonia potential.</p> |
申请公布号 |
EP1037045(B1) |
申请公布日期 |
2008.11.19 |
申请号 |
EP20000302073 |
申请日期 |
2000.03.15 |
申请人 |
HACH COMPANY |
发明人 |
DOBLER, LYDIA J.;GIBBONS, JEAN M.;YU EVLODIENKO, VLADIMIR |
分类号 |
G01N31/00;G01N31/22;C02F1/00;G01N33/00;G01N33/18 |
主分类号 |
G01N31/00 |
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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