发明名称 |
Method and device for safely preserving aqueous field samples using acid or base |
摘要 |
This invention concerns a method and apparatus for collecting and preserving field water samples on site in which a salt solution, contained in a syringe by a rupturable thin film membrane, is injected through a strong acid or base ion exchange filter to produce a required amount of either nitric acid, sulfuric acid or sodium hydroxide for sample collection and preservation.
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申请公布号 |
US5322800(A) |
申请公布日期 |
1994.06.21 |
申请号 |
US19930105560 |
申请日期 |
1993.08.13 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE INTERIOR |
发明人 |
MURPHY, ANDREW P. |
分类号 |
G01N1/14;G01N1/24;G01N1/28;G01N1/34;G01N33/18;(IPC1-7):G01N1/00;B01L11/00 |
主分类号 |
G01N1/14 |
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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