7800 Flame Atomic Absorption Spectrophotometer

The 7800 Atomic Absorption Spectrophotometer is a fully automatic analyser. It can be flexibly equipped with an optional graphite furnace, auto sampler and hydride generator. Unique optical mechanical design, safe and convenient flame system, optional background correction technologies, as well as convenient functions provided by the workstation, suit your pursuit of automatic and precise test results.

Description

Main Features

  • Compact and delicate appearance.
  • Convenient options of background correction method.
  • Unique optical design.
  • Perfect automation control is easily realized by using the software workstation.
  • Safe, reliable and convenient flame system.
  • Multi-functional software workstation.

Specifications

  • 6-lamp turret:
  • Wavelength range: 190-900nm
  • Wavelength indication error: ≤±0.3nm
  • Wavelength repeatability: ≤0.15nm
  • Photometric range: -0.1-2.5 (A)
  • Spectral bandwidth: 0.1, 0.2, 0.4, 0.7, 1.0, 2.0nm
  • Static baseline drift: ≤0.002ABS/30min(Cu)D2 background correction capability: ≥50 times when background signal =1A
  • Self reversal background correction
  • Power supply: AC220V±22V 50Hz±1Hz

Flame System

  • Air/Acetylene burner head: 100mm
  • Nitrous oxide /Acetylene burner head: 50mm
  • Spray chamber: polypropylene coating
  • Ignition dynamic baseline stability: ≤0.004ABS/30min(Cu)
  • Characteristic concentration: ≤0.02μg / ml / 1%
  • Repeatability: Cu≤0.5%;(Absorbance>0.8Abs)
  • Detection limit: Cu≤0.004ug/ml
  • Safety system: automatically cut off gas in case of low pressure, power failure, flame out, or burner mismatched.

Flame System

Item 5800 7800
Wavelength Range 190-900nm 190-900nm
Grating 1800lines/nm 1800lines/nm
Wavelength Repeatability ±0.1nm ±0.1nm
Wavelength Indication Error Whole range ±0.2nm Whole range ±0.2nm
Optical System Czerny-Turner system, integrated optical platform, fully sealed Czerny-Turner system, integrated optical platform, fully sealed optical system
Resolution Spectral bandwidth =0.2nm can separate Mn two lines (279.5nm and 279.8nm, valley/peak Spectral bandwidth =0.2nm can separate Mn two lines (279.5nm and 279.8nm, valley/peak energy ratio <20%
Spectral Bandwidth D2 (background signal =1Abs, background correction capability 0.1nm, 0.2nm, 0.4nm, 0.7nm, 1.0nm, 2.0nm
Static Baseline Drift Integrating structure of suspended internal and external ≤0.002ABS/30min (Cu)
Background Calibration Technology 4-lamp turret (4 lamps can be

preheated simultaneously)

D2 (background signal =1Abs, background correction capability ≥50 times
Instrument Design Integrating structure of suspended internal and external optical path Integrating structure of suspended internal and external optical path
Lamp Turret 4-lamp turret (4 lamps can be

preheated simultaneously)

6-lamp turret (6 lamps can be

preheated simultaneously)

Burner Head Air-acetylene burner head

(100mm, optional 50mm nitrous oxide-acetylene is available)

Air-acetylene burner head (100mm)
Nebulizer High-efficiency glass nebulizer High-efficiency glass nebulizer
Ignition Dynamic Baseline Drift ≤0.004ABS/30min(Cu) ≤0.004ABS/30min(Cu)
Characteristic Concentration (Cu) ≤0.025μg/ml/1%

(Absorbance>0.8ABS)

≤0.02μg/ml/1%

(Absorbance>0.8ABS)

Detection Limit Cu≤0.008ug/ml Cu≤0.004ug/ml
Repeatability (Cu) ≤0.5% ≤0.5%
Gas Flow Control Manual Auto
Ignition Method via buttons on the control panel PC control
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
Background Calibration Technology SR and D2, correct 1A background. When background signal =1Abs, correction

capability ≥50 times

SR and D2, correct 1A background. When background signal =1Abs, correction capability ≥50 times
Dimension 700*550*530mm 700*550*530mm

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