Minerals, Toxic Heavy Metals, and Antioxidant Properties of Honeys from Bangladesh
Table 2
Operating conditions of the atomic absorption spectrophotometer for the determination of different elements in the honey samples.
Element
Burner height (mm)
Wavelength (nm)
Slit width (nm)
Optimum concentration range (mg/L)
Fuel gas flow (L/min)
Lighting mode
Type of oxidant
Sensitivity (mg/L)
Detection limit (mg/L)
Standards used (mg/L)
Correlation coefficient
Na
7
589.0
0.2
0.03–1.00
1.8 (acetylene)
HCl
Air
0.015
0.002
0.0, 0.1, 0.2, 0.3, 0.4
0.9994
K
7
766.5
0.5
0.10–2.00
2.0 (acetylene)
HCl
Air
0.040
0.010
0.0, 0.1, 0.2, 0.4, 0.8
0.9992
Mg
7
285.2
0.5
0.02–0.50
1.8
BGC-D2
Air
0.007
0.001
0.0, 0.1, 0.2, 0.4, 0.8
0.9988
Fe
7
248.3
0.2
0.3–5.0
2.2
BGC-D2
Air
0.120
0.030
0.5, 1.0, 2.0
0.9960
Ca
17
422.7
0.5
0.2–7.0
6.5
BGC-D2
N2O
0.080
0.010
0.0, 0.1, 0.2, 0.4, 0.6
0.9990
Zn
7
213.9
0.5
0.05–1.00
2.0
BGC-D2
Air
0.020
0.005
0.1, 0.2, 0.4
0.9991
Cu
7
324.7
0.5
0.20–5.00
1.8
BGC-D2
Air
0.100
0.020
0.5, 1.0, 2.0
0.9988
Pb
7
283.3
0.5
1.00–20.00
2.0
BGC-D2
Air
0.500
0.100
2.5, 5.0, 10.0
0.9997
Cd
7
228.8
0.5
0.05–2.00
1.8
BGC-D2
Air
0.025
0.005
0.1, 0.2, 0.4
0.9991
As
N/A
193.7
0.5
0.005–0.100
N/A
BGC-D2
Argon, Carrier
N/A
0.001
0.0, 10.0, 30.0, 50.0
0.9886
Mo
17
313.3
0.5
1.0–40.0
7.0
BGC-D2
N2O
0.4
0.1
0, 10, 30, 50
0.9984
Co
7
240.7
0.2
0.5–1.0
2.2
BGC-D2
Air
0.05
0.01
1, 2, 3, 4, 5
0.9985
Ni
7
232.0
0.2
0.3–5.0
2.2
BGC-D2
Air
0.15
0.04
0.5, 1, 2
0.9991
Hg
18
253.7
0.7
0.0002–0.0100
1.8
BGC-D2
None
0.002
0.001
0, 0.0001, 0.0002, 0.0004
0.9914
N2O = nitrous oxide. N/A = not applicable. BGC-D2 = background correction using the D2 lamp method; high speed, dual frequency simultaneous measurements.
