[Determination of beryllium in atmospheric particulate by graphite furnace atomic absorption spectrophotometer using aluminium as a matrix modifier agent sampling with micropore filter membrane].
Beryllium in the atmospheric particulates is collected with 0.22 micron pore diameter micropore filter membrane, which is determined by graphite furnace atomic absorption spectrophotometer using aluminium as a matrix modifier agent. This sampling method shown several advantages: easy, complete and fast digestion; low membrane blank; high elution recovery, standard addition recovery, precision and accuracy. The addition of 800 mg.L-1 aluminium to beryllium solution allows ashing temperature of 2,000 degrees C. The detection limit of 13.5 ng was obtained.
Wang
Z
Z
Hangzhou Environmental Monitoring Center, 310007 Hangzhou.
Zhu
W
W
Lu
Y
Y
D000393:Air Pollutants / Q000032:analysis*; D000535:Aluminum; D001608:Beryllium / Q000032:analysis*; D005374:Filtration; D006108:Graphite; D010316:Particle Size; D016062:Porosity; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013054:Spectrophotometry, Atomic; D013696:Temperature
D000393:Air Pollutants; D006108:Graphite; D000535:Aluminum; D001608:Beryllium