聚氨酯泡沫塑料富集亚硫酸钠-硫脲解脱光谱同时测定矿样中的微量金与铊

来源 :理化检验.化学分册 | 被引量 : 0次 | 上传用户:l1121785530
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
本文验证了王水介质中泡塑对金、铊的定量吸附。着重研究了解脱与测定条件。试验确定:解脱剂为0.3%亚硫酸钠-硫脲溶液,解脱后,其蒸干残渣混入含10%碳酸锂之炭粉缓冲剂,铂、铟分别作金、铊内标,交流电弧激发,在28摄谱仪上摄谱。检出限0.3微克,当金、铊含量为1.4×10~(-4)%时,单次摄谱相对标准偏差分别为±17.6%与±20.4%。 This paper verifies the quantitative adsorption of gold and thallium in foam of aqua regia media. Focus on the release and determination of conditions. It was determined that the release agent was a 0.3% sodium sulfite-thiourea solution. After the solution was evaporated, the residue was evaporated to dryness and mixed with a carbon powder buffer containing 10% lithium carbonate. Platinum and indium were used as gold and thallium internal standard, Spectrograph on the spectrograph. The detection limit was 0.3 μg. The relative standard deviations (RSDs) were ± 17.6% and ± 20.4%, respectively, for gold and thallium contents of 1.4 × 10 -4%.
其他文献
研究了Mg-9Gd-4Y-0.6Zr挤压合金在静态退火过程中的微结构与织构的演变。采用金相显微镜、扫描电子显微镜、透射电子显微镜、XRD织构测试仪及EBSD分析技术表征了合金的晶粒长
广告界有句人所共知的名言:我知道一半的广告费是被浪费掉了,但我不知道浪费的是哪一半。这句话点出了营销人、广告人心中永远的痛。广告投放是科学,但更是高超的艺术。为了