Journal of Analytical Methods in Chemistry / 2012 / Article / Tab 1

Research Article

Direct Quantitative Analysis of Arsenic in Coal Fly Ash

Table 1

Optimization of the furnace program for the analysis of coal fly ash (solid sampling system).

Integration time (s)Ashing temperature(s)Rate 
(°C s−1)
Hold time (s)Ar gas 
(L min−1)
Atomizer temperature 
(°C)
Rate 
(°C s−1)
Hold time 
(s)
Ar gas 
(L min−1)
Correlation 
coefficients

1060010020Max 2100 1000 5 Mid 0.2548
120010020Max

1060010020Max 2100 1000 5 Mid 0.3879
120010020Max

50010020Min
10120010020Mid20005007Mid0.5097
45010050Max

50010020Min
7.5120010020Mid20005007Mid0.6584
45010050Max

50010020Min
6120010020Mid21005007Mid0.6641
45010050Max

60010020Max
5.5120010020Mid21505007Mid0.7611
50010050Max

60010020Max
6120010020Mid21505007Mid0.7739
50010050Max

60010020Max
6120010020Mid21505007Mid0.9349
50010050Max

Min: 0.1 L min−1, Mid: 1.0 L min−1, Max: 2.0 L min−1.