Reductive pyrolysis method for determining trace sulfur
    3.
    发明授权
    Reductive pyrolysis method for determining trace sulfur 失效
    还原热解法测定痕量硫

    公开(公告)号:US4330298A

    公开(公告)日:1982-05-18

    申请号:US192584

    申请日:1980-09-30

    IPC分类号: G01N27/42 G01N31/00 G01N27/46

    摘要: Method for determining total organic sulfur using reductive pyrolysis and specific electrochemical detection of sulfide ion at a mercury electrode. The method is especially useful for the determination of sulfur in matrices containing halogen or nitrogen compounds. Under routine conditions, a detection limit of less than 50 parts per billion (ppb) can be achieved using differential pulse cathodic stripping voltammetry as the detection mode.

    摘要翻译: 使用还原热解法测定总有机硫的方法以及在汞电极上硫化物离子的特定电化学检测。 该方法对于测定含有卤素或氮化合物的基质中的硫尤其有用。 在常规条件下,使用差分脉冲阴极溶出伏安法作为检测模式,可以实现小于50ppm(ppb)的检测限。