发明名称 |
METHOD OF IDENTIFYING A MATERIAL |
摘要 |
The invention concerns a method of measuring the amount of a particular SERS-active taggant compound in a sample of a material which includes the steps of adding an internal standard containing an isotopically-altered version of said SERS-active taggant compound to the sample, contacting the sample/internal standard mixture with a SERS substrate then subjecting the mixture and SERS substrate to Raman spectroscopy. The concentration of SERS-active taggant compound in the sample is then calculated from the ratio of (i) the Raman spectroscopy detector response to the SERS-active taggant compound to (ii) the Raman spectroscopy detector response to the internal standard. |
申请公布号 |
EP2630472(A1) |
申请公布日期 |
2013.08.28 |
申请号 |
EP20110778662 |
申请日期 |
2011.10.21 |
申请人 |
JOHNSON MATTHEY PUBLIC LIMITED COMPANY |
发明人 |
MARCHANT, CLIVE ANTONY;CROUD, VINCENT BRIAN |
分类号 |
G01N21/65;B82Y15/00;B82Y30/00;G01N33/28 |
主分类号 |
G01N21/65 |
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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