高频红外吸收法测定草酸镍中的硫

Determination of sulfur in oxalic acid nickel by a high-frequency infrared absorption method

采用高频燃烧红外吸收法测定草酸镍中的硫时,先将样品灼烧,再采用依次加入纯铁助熔剂、样品、纯铁和钨锡助熔剂的方式熔样,测定结果的相对标准偏差小于2%.

Adopting infrared absorption method to determinate sulfur in oxalic acid nickel, preheated the sample firstly,selected the method of adding pure iron flux, sample, pure iron and wolfram stannum flux in turn, to fuse the sample. The relative standard deviation of determinated results was less than 2%.