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GeminAA Plus

QUICK OVERVIEW

GeminAA Plus is GBC’s Flame and Graphite Furnace Tandem System.

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Category: AAS Tag: Smartaddons
  • Description
  • Features
  • Specifications
  • Resources
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Description

GeminAA Plus AAS

GBC’s Flame and Graphite Furnace Tandem System

with flame emission capability. Comes standard with air-acetylene and nitrous oxide-acetylene burners and furnace/flame universal autosampler.

Features

Advanced Optical System

  • The GeminAA Plus features a unique suspension design for the optical system. Shaking of the instrument bench or change of the environmental temperature will have no effect on the instrument’s stability.
  • 1800 lines/mm diffraction grating, which increases resolution and energy efficiency.
  • Optical system allows for low detection limits for elements such as As, Se among others.
  • Six lamp turret with lamp auto peaking.
  • Deuterium lamp background correction.
  • Self-absorption background correction.

Integrated Design

  • The GeminAA Plus features an integrated flame and graphite furnace design that contains the optical system, atomizer, graphite furnace power supply and electronics all in one unit. This makes it one of the most compact Tandem AAS in the world.
  • Optimized lamp power supply technology to prolong lifetime of hollow cathode lamps.

Automated Changeover between Flame and Graphite Furnace

  • Features automated software controlled switching between flame and graphite furnace in less than 2 seconds.
  • No need to change or replace anything when switching from flame to furnace or vice versa.

Specifications

Optical System

  • Wavelength range: 190 – 900 nm
  • Monochromator: Czerny-Turner Grating Monochromator
  • Wavelength repeatability: ≤05 nm
  • Blaze Wavelength: 250 nm
  • Resolution: better than 0.1 nm
  • Spectral bandwidth: Automatic switching between 5 levels: 0.1, 0.2, 0.4, 1.0, 2.0 nm
  • Wavelength accuracy: ±0.1 nm
  • Grating: 1800 lines/mm
  • Baseline Stability: ≤±003A/30 min (Static); ≤±0.002A/30 min (Dynamic)

Flame Method

  • Benchmark Concentration of Cu: ≤02 μg/mL
  • Precision RSD: ≤6%
  • Position Adjustment: Adjustable height and angle; Flame to hydride can be switched in less than 1 minute
  • Detection Limit: ≤003 μg/mL

 Graphite Furnace Method

  • Benchmark Concentration of Cd: ≤0 x 10-13g
  • Temperature Range: Room temperature to 3000°C
  • Temperature Control Program: Max 20 step temperature program. 3 modes of temperature rise: step, slope and flat
  • Max Power Temperature Rise Rate: ≥2000°C/s
  • Detection Limit: ≤0 x 10-13g
  • Precision RSD: ≤2%
  • Optical Control Temperature Rise Rate: ≥3000°C/s
  • Heating Modes: Max power heating and optical control rapid heating

Resources

GeminAA Plus

Support

Find and contact your local distributor here or contact our service team at service@gbcsci.com

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