Development of a New Sequential Extraction Procedure of Nickel Species on Workplace Airborne Particulate Matter: Assessing the Occupational Exposure to Carcinogenic Metal Species

Table 2

AAS instrumental parameters for determination of Ni

Operating conditions
Primary source	Nickel Hollow Cathode lamp (Agilent Technologies)
Lamp current	5 mA
Analytical wavelength	232 nm
Background correction system	Zeeman effect based (Transversal)
Slit width	0.2 nm
Mode	Absorbance (peak height)
Graphite furnace operation
Atomization tube	Partition tubes (coated)-GTA (Agilent Technologies)
Sheath/Purge gas	Argon (Ar) of 99.999% purity
Sample Injection (sample, μL)	30