7800 Atomic Absorption Spectrophotometer

7800 Atomic Absorption Spectrophotometer

The 7800 Atomic Absorption Spectrophotometer is fully controlled via PC and can be equipped with optional components, including a graphite furnace, auto-sampler, and hydride generator, allowing for versatile application. Featuring a unique optical and mechanical design, a safe and user-friendly flame system, and optional background correction technologies, this instrument supports the pursuit of automated and precise analytical results. Additionally, the workstation offers convenient functions to enhance ease of use and efficiency in testing.

Features:

  1. Excellent total reflection optical system ensures excellent signal-to-noise ratio of the instrument.
  2. Comprehensive and safe intelligent gas control module.
  3. Excellent full band deuterium lamp background correction technology and high-performance self absorption double background correction.
  4. Fully automatic instrument control, light source supports high-performance element lamp, and can be completed quickly with one key.
  5. Original lamp position eight lamp holder 360 degree rotation design.
  6. Novel atomizer and intelligent elevator.
  7. Simple, professional, automatic and fully operated RG WIN AAS workstation software under MS window system.
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Description

Specifications

Models AA 7804 AA 7808 AA 7818 AA 7828
Single Beam Single Beam Single Beam Double Beam
Optical System Single Beam Single Beam Single Beam Double Beam
Monochromator Czerny-Turner type, focal lengths at 350mm Czerny-Turner type, focal lengths at 350mm Czerny-Turner type, focal lengths at 350mm Czerny-Turner type, focal lengths at 350mm
Grating Holographic diffraction with 1800 lines/mm Holographic diffraction with 1800 lines/mm Holographic diffraction with 1800 lines/mm Holographic diffraction with 1800 lines/mm
Wavelength Range 190-900 nm 190-900 nm 190-900 nm 190-900 nm
Slits Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm Automated slit selection 0.1, 0.2, 0.4, 0.7, 1.4, 2.0 nm
Wavelength Repeatability ±0.1 nm ±0.1 nm ±0.05 nm ±0.05 nm
Wavelength Accuracy ±0.3 nm ±0.2 nm ±0.15 nm ±0.15 nm
Lamp Automated 4-lamp turret Automated 4-lamp turret Automated 8-lamp turret Automated 8-lamp turret
Reading Mode T, A, C T, A, C T, A, C T, A, C
Photometric Range 0-125%, -0.1-3.00A 0-125%, -0.1-3.00A 0-125%, -0.1-3.00A 0-125%, -0.1-3.00A
Static Baseline Drift (Cu) ≤0.004A/30 min ≤0.003A/30 min ≤0.002A/30 min ≤0.002A/30 min
Dynamic Baseline Drift (Cu) ≤0.006A/15 min ≤0.005A/15 min ≤0.004A/15 min ≤0.004A/15 min
Background Correction Deuterium (D2) Background Correction Deuterium (D2) Background Correction Deuterium (D2) Background Correction Deuterium (D2) Background Correction and Self-absorption Background Correction
Models AA 7804 AA 7808 AA 7818 AA 7828
Single Beam Single Beam Single Beam Double Beam
Characteristic ≤0.04μg/ml ≤0.03μg/ml ≤0.02μg/ml ≤0.02μg/ml
Detection Limit (Cu) ≤0.008μg/ml ≤0.006μg/ml ≤0.004μg/ml ≤0.004μg/ml
Repeatability (Cu) RSD≤1% RSD≤0.6% RSD≤0.5% RSD≤0.5%
Acetylene Flow Control Auto 12-Level Auto 4-Level Auto 4-Level Auto 4-Level
Air Assist Control Auto 4-Level Auto 4-Level Auto 4-Level Auto 4-Level
Ignition Method PC control PC control PC control PC control
Detector Wide range UV sensitive photomultiplier tube Wide range UV sensitive photomultiplier tube Wide range UV sensitive photomultiplier tube Wide range UV sensitive photomultiplier tube
Burner Head Titanium 100mm burner for air/acetylene operation Titanium 100mm burner for air/acetylene operation Titanium 100mm burner for air/acetylene operation Titanium 100mm burner for air/acetylene operation
Nebulizer High efficiency glass nebulizer High efficiency glass nebulizer High efficiency glass nebulizer High efficiency glass nebulizer
Spray Chamber Corrosion resistant material spray chamber Corrosion resistant material spray chamber Corrosion resistant material spray chamber Corrosion resistant material spray chamber
Safety Protection Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched Automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched
Characteristic Amount Cd≤0.5pg, Cu≤20pg Cd≤0.5pg, Cu≤20pg Cd≤0.5pg, Cu≤20pg Cd≤0.5pg, Cu≤20pg
Detection Limit (Cu) Cd≤1.5pg, Cu≤25pg Cd≤1.0pg, Cu≤25pg Cd≤0.8pg, Cu≤25pg Cd≤0.8pg, Cu≤25pg
Repeatability (Cu) RSD≤4% RSD≤3% RSD≤2.5% RSD≤2.5%
Heating Range of Graphite Furnace Room temperature - 3000℃ Room temperature - 3000℃ Room temperature - 3000℃ Room temperature - 3000℃
High Power Heating Range 1500-3000℃ 1500-3000℃ 1500-3000℃ 1500-3000℃
Slope and Holding Time 1-255s 1-255s 1-255s 1-255s
Atomization Heating Mode Light-controlled heating, Time-controlled heating, General heating Light-controlled heating, Time-controlled heating, General heating Light-controlled heating, Time-controlled heating, General heating Light-controlled heating, Time-controlled heating, General heating
Protective Gas Flow Outside Pipe 1 L/min 1 L/min 1 L/min 1 L/min
Protective Gas Flow Inside Pipe 4-speed adjustable (0, 50, 200, 250 ml/min flow) 4-speed adjustable (0, 50, 200, 250 ml/min flow) 4-speed adjustable (0, 50, 200, 250 ml/min flow) 4-speed adjustable (0, 50, 200, 250 ml/min flow)
Safety Protection Cooling water flow, Protective gas pressure, Furnace body temperature, Power supply temperature, Graphite furnace installation alarm Cooling water flow, Protective gas pressure, Furnace body temperature, Power supply temperature, Graphite furnace installation alarm Cooling water flow, Protective gas pressure, Furnace body temperature, Power supply temperature, Graphite furnace installation alarm Cooling water flow, Protective gas pressure, Furnace body temperature, Power supply temperature, Graphite furnace installation alarm
Auto Sampler Optional Optional Optional Optional
Measuring Method Flame method, Graphite furnace method, Hydride generation-Atomic absorption method, Flame emission method Flame method, Graphite furnace method, Hydride generation-Atomic absorption method, Flame emission method Flame method, Graphite furnace method, Hydride generation-Atomic absorption method, Flame emission method Flame method, Graphite furnace method, Hydride generation-Atomic absorption method, Flame emission method
Concentration Calculation Method Standard curve method (6 linear/non-linear fitting methods), Standard addition method, Interpolation method Standard curve method (6 linear/non-linear fitting methods), Standard addition method, Interpolation method Standard curve method (6 linear/non-linear fitting methods), Standard addition method, Interpolation method Standard curve method (6 linear/non-linear fitting methods), Standard addition method, Interpolation method
Repeat Measurement Times 1-30 times, Calculate and give the average value of absorbance/concentration, standard deviation and relative standard deviation 1-30 times, Calculate and give the average value of absorbance/concentration, standard deviation and relative standard deviation 1-30 times, Calculate and give the average value of absorbance/concentration, standard deviation and relative standard deviation 1-30 times, Calculate and give the average value of absorbance/concentration, standard deviation and relative standard deviation
Report Printing Parameter printing, Data result printing Parameter printing, Data result printing Parameter printing, Data result printing Parameter printing, Data result printing
Dimensions/Weight 850 x 650 x 550 mm / 95kg 850 x 650 x 550 mm / 95kg 850 x 650 x 550 mm / 95kg 850 x 650 x 550 mm / 95kg
Ambient Temp. 10 ~ 35 ℃ 10 ~ 35 ℃ 10 ~ 35 ℃ 10 ~ 35 ℃
Ambient Humidity ≤ 85 % ≤ 85 % ≤ 85 % ≤ 85 %
Power 110/220V, 50/60Hz 110/220V, 50/60Hz 110/220V, 50/60Hz 110/220V, 50/60Hz

Contact Info

Unit 14
400 Roan Crescent
Rambo Junxion
Corporate Park North
Randjespark
Midrand
South Africa
1685

Phone: +27 (0)870 950 868

Email: [email protected]

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