Ultratrace Determination of Cr(VI) and Pb(II) by Microsample Injection System Flame Atomic Spectroscopy in Drinking Water and Treated and Untreated Industrial Effluents

Table 4

Analytical results of Cr(VI) and Pb(II) (µg/L) in drinking water and industrial effluents (Denizli, Turkey).

Origin of water (no. of samples)	Cr(VI)	Pb(II)
Groundwater (𝑛=6)	3.7±1.8	32.6±1.6
Tap water (𝑛=6)	2.6±0.5	10.4±2.1
Untreated industrial effluent (𝑛=4)	23.3±5.3	91.7±1.8
Treated industrial effluent (𝑛=4)	9.6±4.5	70.3±1.2