发明名称 |
METHOD FOR DETERMINING SULFUR CONTENT IN FIBERS |
摘要 |
<p>The invention concerns methods for measuring sulfur content in a fiber or polymer resin sample comprising: a) contacting the sample with a solution comprising sodium hydroxide to convert sulfur to sodium sulfate, b) combusting the sample of step a) in a furnace to remove essentially all organic materials to produce a residue; c) dissolving the residue in concentrated nitric acid; and d) determining the sulfur content of the sample using ICP Emission Spectrometry.</p> |
申请公布号 |
EP2802870(A1) |
申请公布日期 |
2014.11.19 |
申请号 |
EP20120701799 |
申请日期 |
2012.01.11 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
TSCHRITTER, JONATHAN, SAMUEL |
分类号 |
G01N33/44;G01N21/73;G01N31/12 |
主分类号 |
G01N33/44 |
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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