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S-990 Atomic Absorption Spectrophotometer

Specifications

Wavelength Range 190 nm - 900 nm
Wavelength Accuracy ± 0.15 nm
Wavelength Repeatability ≤ 0.05 nm
Resolution < 30% or 0.2 nm ± 0.2 nm
Baseline Stability

Static < 0.002Abs/ 30 min

Dynamic < 0.004Abs/ 30 min

Sensitivity Cu: 2.0 μg/ mL Absorption > 0.2 Abs
Detection Limit Cu: < 0.004 μg/ mL(Flame) • Cd < 0.4 * 10-12 g (Graphite Furnace)
Repeatability

Cu < 0.7% (Air-Acetylene)

Ba < 1% (Nitrous oxide -Acetylene)

Cu < 2% , Cd < 2% (Graphite Furnace)

Background Correction Deuterium Lamp > X 40, Self Reversal > X 60
Character concentration

< 0.02 μg/ mL / 1% (Cu)

< 0.15 mg/ mL / 1% (Ba, Nitrous oxide-Acetylene Flame)

Character Value Cu < 0.3 x 10-10 g • Cd < 0.3 x 10-12 g
Spectral Bandwidth 0.1, 0.2, 0.4, 1.0, 2.0 nm
Lamp Turret Eight Hollow Cathode Lamps
Analytical Method Flame (Air- Acetylene, Nitrous Oxide-Acetylene, Air-Natural Gas) Graphite Furnace
Heating Program (Graphite Furnace) Heating Profile with upto 20 steps
Communication Type USB, RS-232
Safety Function Burner Identification, Flame Sensor, Gas Leak Sensor, Low Gas Pressure Sensor, Power Loss Protection, Gas Loss Flame Protection
Power Supply 110 V and 220 V Compatible

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