Table 1 Measurement condition of lead (Pb), arsenic (As), cadmium (Cd) nickel (Ni) using CTA 3000 atomic absorption spectrometer.

From: Human health risk assessment of toxic metals in Nass smokeless tobacco in Iran

Parameters

Pb

As

Cd

Ni

Wavelength (nm)

217

193.7

288.8

232

Slit width (nm)

0.4

0.2

0.4

0.2

Limit of detection (µg/g)

0.01

0.001

0.002

0.008

Limit of Quantitation (µg/g)

0.05

0.005

0.01

0.04

Recovery (%)

95.5–101

93–98.5

92.5–97

98–104

Linear Range (µg/g)

0.05–14.0

0.005–5.0

0.01–2.0

0.04-8.0