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公开(公告)号:US09086382B2
公开(公告)日:2015-07-21
申请号:US14371794
申请日:2012-01-11
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.
摘要翻译: 本发明涉及测量纤维或聚合物树脂样品中硫含量的方法,包括:a)使样品与包含氢氧化钠的溶液接触以将硫转化为硫酸钠,b)将炉子中的步骤a)的样品燃烧, 所有有机物质产生残留物; c)将残余物溶解在浓硝酸中; 和d)使用ICP发射光谱测定样品的硫含量。
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公开(公告)号:US20150029506A1
公开(公告)日:2015-01-29
申请号:US14371794
申请日:2012-01-11
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.
摘要翻译: 本发明涉及测量纤维或聚合物树脂样品中硫含量的方法,包括:a)使样品与包含氢氧化钠的溶液接触以将硫转化为硫酸钠,b)将炉子中的步骤a)的样品燃烧, 所有有机物质产生残留物; c)将残余物溶解在浓硝酸中; 和d)使用ICP发射光谱测定样品的硫含量。
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