ATOMIC ABSORPTION SPECTROPHOTOMETRY COOKBOOK
Section 3-2

Measuring Conditions by Element of Flame Atomic
Absorption Spectrophotometry

Standard substance and standard solution preparation method
Refer to Section 2 - 3 for the Standard solution preparation method

Measuring conditions and Calibration curve
 · Measuring conditions
 Current ; 10 mA/0 mA Burner height ; 7 mm
 Wave length ; 422.7 nm Burner angle ; 0 deg
 Slit width ; 0.5 nm Fuel gas flow ; 2.0 l/min
 Lighting mode ; BGC-D2 Type of oxidant ; air

 · Calibration curve in BGCD2 mode
 STD. CONC. ABS.
 No. (ppm) 422.7nm
 1 0.5000 0.0565
 2 1.0000 0.1096
 3 2.0000 0.2179

K0= 0.0000, K1= 0.1093

Interference
Negative interference is received if Al, Be, P, V, Si, Ti and Zr coexist. Therefore, 0.1 to 0.2% lanthanum chloride or strontium is added to the standard or unknown sample.
Standard substance and standard solution preparation method
Refer to Section 2 - 3 for the Standard solution preparation method

Measuring conditions and Calibration curve
 · Measuring conditions
 Current ; 10 mA/0 mA Burner height ; 17 mm
 Wave length ; 422.7 nm Burner angle ; 0 deg
 Slit width ; 0.5 nm Fuel gas flow ; 6.5 l/min
 Lighting mode ; BGC-D2 Type of oxidant ; N2O

 · Calibration curve in BGCD2 mode
 STD. CONC. ABS.
 No. (ppm) 422.7nm
 1 0.1000 0.0368
 2 0.2000 0.0696
 3 0.4000 0.1479

K0= 0.0000, K1= 0.3655

Interference
Negative interference, due to coexist substances in the Air-C2H2 flame, is removed by using the N2O-C2H2 flame. However, it is ionized and 0.1 to 0.2% potassium chloride is added to the standard or unknown sample.
Standard substance and standard solution preparation method
Refer to Section 2 - 3 for the Standard solution preparation method

Measuring conditions and Calibration curve
 · Measuring conditions
 Current ; 8 mA/0 mA ; 8 mA/100 mA Burner height ; 7 mm
 Wave length ; 228.8 nm ; 228.8 nm Burner angle ; 0 deg
 Slit width ; 0.5 nm ; 0.5 nm Fuel gas flow ; 1.8 l/min
 Lighting mode ; BGC-D2 ; BGC-SR Type of oxidant ; air

 · Calibration curve in BGCD2 mode
 STD. CONC. ABS.
 No. (ppm) 228.8nm
 1 0.1000 0.0605
 2 0.2000 0.1153
 3 0.4000 0.2478

= 0.0000, K1= 0.6106

 · Calibration curve in BGC-SR mode
 STD. CONC. ABS.
 No. (ppm) 228.8nm
 1 0.1000 0.0329
 2 0.2000 0.0659
 3 0.4000 0.1272

 K0= 0.0000, K1= 0.3207

Interference
Interference is small.
Standard substance and standard solution preparation method
Refer to Section 2 - 3 for the Standard solution preparation method