The Release of Trace Elements in the Process of Coal Coking

Table 1

The optimum measurement conditions.

Rf power [W]	1025
Plasma gas flow [L/min]	15
Nebulizer gas flow [L/min]	0.7–0.76
Auxiliary gas flow [L/min]	1.13
Nebulizer	Cross flow
Plasma torch	quartz
Sample uptake [mL/min]	1
Scanning mode	Peak hop
Dwell time [ms]	100
Sweeps/reading	20
Number of replicates	3
Read delay time [s]	15
Cell gas	CH4
DRC gas flow	0.7
RPq (rejection parameter q)	0.65