Journal of Analytical Methods in Chemistry / 2012 / Article / Tab 2

Research Article

Direct Quantitative Analysis of Arsenic in Coal Fly Ash

Table 2

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

StepParameters Ar gas
Temperature 
(°C)
Rate 
(°C s−1)
Hold time (s)Total time 
(s)

Preheating70160114Min
Drying105103033.5Min
Drying120102021.5Min
Ashing6001002024.8Max
Ashing12001002026.0Middle
Ashing5001005057.0Max
Autozero (AZ)500066.0Middle
Atomization2150500710.3Middle
Cleaning260010001515.5Max