Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy

Table 1

Instrumental parameters and graphite furnace temperature conditions for Pb determination.

Instrumental parameters
Wavelength (nm)		283.3
Spectral bandwidth (nm)		0.5
Lamp current (mA)		10
Sample volume (μL)		20
Integration mode		Peak area
Background correction		Deuterium
Graphite furnace temperature conditions
Step	Temperature (°C)	Argon flow rate(L·min^−1)
Drying1	80	3
Drying2	120	3
Pyrolysis	300	3
Atomization	1900	0
Cleaning	2100	3