Chemical Evaluation of Trace Elements in Bottled Water

Table 1

Instrumental parameters set for the analysis of the trace elements in AA-7000 (F-AAS).

Elements	Wavelength (nm)	Slit width (nm)	Lamp current (mA)	Flow rate of air acetylene flame (L/min)
				Acetylene	Air
Iron	248.3	0.2	12	2.2	15
Zinc	213.9	0.7	8	1.8
Silver	328.1	0.2	2	0.9
Copper	324.8	0.7	8	1.8
Cadmium	228.8	0.7	4	1.2
Cobalt	240.7	0.2	12	1.6
Nickel	232.0	0.2	12	1.6
Lead	283.3	0.5	5	1.5

L: liter(s); nm: nanometer; mA: milliamperes; min: minute.