发明名称 |
Process to measure PPB levels of dissolved copper in jet fuels and other non-aqueous fluids using a colorimetric process |
摘要 |
A method of measuring the concentration of metal ions in a sample comprising the steps of: providing a sample comprising a nonpolar, liquid hydrocarbon, suspected of containing a metal ion; adding a dye such as a spirobenzopyran dye or bathocuproine and a reducing agent to the sample; wherein the dye forms a complex with the metal ion; wherein the complex has a spectral shift in light absorbance relative to the dye; observing the spectral shift; and calculating the concentration of the metal ion in the sample.
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申请公布号 |
US7378281(B2) |
申请公布日期 |
2008.05.27 |
申请号 |
US20030354990 |
申请日期 |
2003.01.31 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY |
发明人 |
MORRIS ROBERT E;LU QIN;COLLINS GREGORY E |
分类号 |
G01N33/20;G01N31/22 |
主分类号 |
G01N33/20 |
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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