Evaluation of Trace Metal Profile in Cymbopogon validus and Hyparrhenia hirta Used as Traditional Herbs from Environmentally Diverse Region of Komga, South Africa

Table 1

Optimized operating conditions of FAAS for the analysis of trace metals in plant materials (leaves and flowers).

Elements	(nm)	Slit (nm)	Flame type	Flow rate (L/min)
Cu	324.8	0.5	Air/acetylene	1.1
Zn	213.9	0.2	Air/acetylene	1.2
Fe	248.3	0.2	Air/acetylene	0.9
Mn	279.6	0.5	Air/acetylene	1.1
Pb	283.3	0.5	Air/acetylene	1.2