摘要
叙述了石墨炉原子吸收光谱法测定水样中的总铬 ;以APDC_MIBK为萃取体系 ,在 pH为 4 .5的缓冲溶液中萃取测定铬 (Ⅵ ) ,以差减法求铬 (Ⅲ ) .解决了废水中痕量铬 (Ⅵ )和铬 (Ⅲ )分别测定的难题。
Total chromium in waste water wa measured with atomic absorption spectroscopy in graphite furnace. Cr(Ⅵ) was extracted and measured from pH4.5 buffer solution with APDC_MIBK extraction system. Cr(Ⅲ) was calculated by subtraction method.We solved the difficult problem of the respective measure to trace Cr(Ⅵ) and Cr(Ⅲ) in waste water.
出处
《应用科技》
CAS
2001年第3期39-40,42,共3页
Applied Science and Technology
