Table 2. Comparison of Different Methods Used in This Study.
FAAS | SQT-FAAS | SQT-AT-FAAS | |
---|---|---|---|
LOD, ng mL–1 | 110 | 5 | 0.075 |
LOQ, ng mL–1 | 366 | 16 | 0.25 |
linear range, μg L–1 | 250–5000 | 25–1000 | 0.25–2.0 |
calibration equationa | y = 0.0799[Cd]+0.0097 | y = 1.6851[Cd]+0.013 | y = 0.3531[Cd]+ 0.1454 |
sample volume, mL | 29.6 | ||
trapping time, s | 210 |
y is the absorbance and [Cd] is the concentration of Cd in ng mL–1.