发明申请
- 专利标题： METHOD FOR DETERMINING SULFUR CONTENT IN FIBERS
- 专利标题（中）： 用于确定纤维中硫含量的方法
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申请号： US14371794申请日： 2012-01-11
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公开(公告)号： US20150029506A1公开(公告)日： 2015-01-29
- 发明人: Jonathan Samuel Tschritter
- 申请人： Jonathan Samuel Tschritter
- 申请人地址： US DE Wilmington
- 专利权人： E I DU PONT DE NEMOURS AND COMPANY
- 当前专利权人： E I DU PONT DE NEMOURS AND COMPANY
- 当前专利权人地址： US DE Wilmington
- 国际申请： PCT/US12/20892 WO 20120111
- 主分类号： G01N21/73
- IPC分类号： G01N21/73 ; G01J3/30
摘要：
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.
公开/授权文献
- US09086382B2 Method for determining sulfur content in fibers 公开/授权日：2015-07-21
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