Method for determining sulfur content in fibers
    1.
    发明授权
    Method for determining sulfur content in fibers 有权
    测定纤维中硫含量的方法

    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。

    METHOD FOR DETERMINING SULFUR CONTENT IN FIBERS
    2.
    发明申请
    METHOD FOR DETERMINING SULFUR CONTENT IN FIBERS 有权
    用于确定纤维中硫含量的方法

    公开(公告)号:US20150029506A1

    公开(公告)日:2015-01-29

    申请号:US14371794

    申请日:2012-01-11

    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.

    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。