Graphite Furnace Atomic Absorption Spectrometer

Graphite Furnace Atomic Absorption Spectrometer

  • Product Number:LD-AAS2
  • Product Difference:Graphite furnace system, fully automated qualitative and quantitative analysis, automatic calculation of elemental content

Product Introduction

The graphite furnace atomic absorption spectrometer employs a concave mirror instead of a convex lens, effectively resolving chromatic aberration caused by differing focal points for various elements and enhancing optical conversion efficiency.

Product Features

  • Integrated total internal reflection achromatic optical system employs concave mirrors instead of convex lenses as the instrument's optical focusing device, effectively resolving chromatic aberration issues caused by differing focal lengths of various elements while enhancing optical system efficiency.

  • User-friendly interface ensures effortless operation. Switch between Chinese and English Windows-style software interfaces. Runs on Windows XP, Windows 7, and more. It performs fully automated qualitative and quantitative analysis, automatically calculates elemental content, and generates test reports.

  • Eight-element lamp tower allows one lamp to operate while up to seven others preheat simultaneously, saving lamp replacement and warm-up time for faster, more convenient element measurement.

  • USB 3.0 communication interface—industry-first adoption of USB 3.0 for enhanced data transfer speeds and full computer system compatibility.

  • Fully automated design: All instrument functions are monitored and controlled via computer, except for the main power switch.

  • Background correction system: Features both deuterium lamp and self-absorption background correction modes. At a background signal of 1A, background subtraction capability exceeds 30 times.

  • Streamlined sheet metal design: Sleek, modern, and aesthetically pleasing.

  • Proprietary intellectual property with comprehensive functionality and powerful analytical software performance.

  • Graphite Furnace System
    (1) Integrated design houses both the graphite furnace power supply and atomic absorption host within a single instrument, reducing cable length, minimizing electromagnetic interference from the graphite furnace power supply, and enhancing graphite tube heating efficiency.
    (2) High temperature control precision and rapid heating rate achieved through high-power transformers, low-resistance cables, and light-controlled heating, complemented by software/hardware temperature calibration systems. High-temperature range control accuracy reaches ±1%.
    (3) The 150-position carousel-type graphite furnace autosampler employs a polar coordinate carousel mechanism, delivering high positioning accuracy, stable and reliable operation, and convenient maintenance.
    (4) Automatic carrier gas flow control: Both internal and external gases within the graphite furnace are automatically regulated by the computer according to the software-programmed heating profile.
    (5) Enhanced safety protections ensure secure and reliable sample analysis: ① Cooling water flow monitoring, ② Carrier gas pressure monitoring, ③ Graphite tube temperature monitoring, ④ Graphite furnace temperature monitoring.

Product parameters

Wavelength Range

185nm–900nm
Automatic Peak-Finding Monochromator TypeCzerny-Turner Type
Spectral Bandwidth0.1/0.2/0.4/0.7/1.4 nm (Five-Step Auto-Switching)
Grating Brillouin Wavelength230nm
Grating Raster Lines1800 lines/mm
Wavelength Accuracy≤±0.2nm
Wavelength Repeatability< 0.10nm
ResolutionBetter than 0.3nm
Static baseline stability0.003 Abs (static)
Deuterium lamp background correction capabilityOver 60 times
Graphite furnace temperature control rangeRoom temperature--3000℃
Graphite furnace heating rate3000℃/s
Graphite furnace cadmium (Cd) precision≤ 2%
Graphite furnace cadmium (Cd) characteristic quantity≤ 0.5 pg
Graphite furnace cadmium (Cd) detection limit≤ 1 pg
Power supply220V ± 22V, 50Hz ± 1Hz, 5kW (peak)
pagetop