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Atomic Absorption Spectrometer (AAS)
Li-ion Battery Laboratory Testing Equipment
Atomic Absorption Spectrometer (AAS).png

Atomic Absorption Spectrometer (AAS)

The Atomic Absorption Spectrometer (AAS) is an instrument used to analyze the content of elements by measuring the absorption of light at specific wavelengths by atoms in a sample. The sample is heated to a high temperature, converting its elements into atomic gas form. When light of a specific wavelength passes through the sample, the atoms of the elements absorb the spectral lines that resonate with them, producing an absorption signal. AAS is primarily used for the quantitative analysis of metal elements, especially for heavy metals and trace element analysis in water quality, environmental monitoring, food, pharmaceuticals, and materials. It offers high sensitivity, strong selectivity, and ease of operation, making it widely used in environmental monitoring, clinical analysis, chemical formulation, and quality control.

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    Key Feature

    Optical System

    Wavelength Range

    （190～900）nm

    Spectral Bandwidth

    (0.1, 0.2, 0.4, 1.0, 2.0) nm five-stage automatic switching

    Monochromator

    C-T grating monochromator

    Wavelength Accuracy

    ±0.1nm

    Wavelength Repeatability

     ≤0.05nm

    Grating Line Density

    1800 lines/mm

    Flame Wavelength

    250nm

    Resolution

    Better than 0.1 nm

    Baseline Stability

    ≤0.003 A/30 min (dynamic) ≤0.002 A/30 min (static)

    Flame Analysis

    Cu Characteristic Concentration

    ≤0.02 μg/mL/1%

    Detection Limit

    ≤0.003 μg/mL

    Precision RSD

    ≤0.45%  

    Burner Head

    Compatible with 100 mm full titanium burner head or 50 mm stainless steel burner head

    Position Adjustment

    Height and angle adjustment for optimal positioning, flame/hydride replacement completed within one minute

    Nebulizer

    Standard high-efficiency glass nebulizer and full titanium metal nebulizer; full titanium metal nebulizer is suitable for analyzing samples containing corrosive HF

    Graphite Furnace Analysis

    Cd Characteristic Concentration

    0.5×10-12g

    Detection Limit

    10×10-12g

    Temperature Control Range

    Room temperature to 2700°C

    Precision RSD

    ≤3.0%

    Temperature Program

    Up to 20-stage heating program, with three heating methods: step, slope, and hold.

    Heating Rate

    ≥2500℃/s

    Power Heating Rate

    ≥2000℃/s

    Temperature Control Accuracy

    ≤ 1%

    Temperature Reproducibility

    ≤ 0.5%