[Determination of Sb in the resin and products of PET by graphite furnace atomic absorption spectrometry].
The method of determing Sb in resin and products of PET by graphite furnace atomic absorption spectrometry was studied. The sample was pretreated by 4% acetic acid and determined by graphite furnace atomic absorption spectrometry. The sensitivity of this method was 30.5 pg/1% absorption, the relative standard deviation was 3.12% and the rate of recovery was 91.68-97.74%. The results obtained by this method agreed with those of malachite green spectrophotometry.
Wang
L
L
Zhuhai Sanitation and Anti-Epidemic Station, 519000 Zhuhai.
Bai
Y
Y