1.The detection method and theoretical detectable trace elements of atomic absorption spectrometer: (for reference only)

1. Atomic absorption flame method

Atomic absorption flame method (air acetylene) can detect elements up to PPM level. Sodium (Na), potassium (K), magnesium (Mg), calcium (Ca), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), platinum (Pt), gold (Au), copper (Cu), silver (Ag), zinc (Zn), cadmium (Cd), lead (Pb), bismuth (Bi), etc.

2. Atomic absorption hydride method

Atomic absorption hydride generation method can be used for trace detection of low melting point elements (PPb level). Measurement: Arsenic (As), Selenium (Se), Antimony (Sb), Bismuth (Bi), Lead (Pb), Tin (Sn), Tellurium (Te), Germanium (Ge), Mercury (Hg), etc. (Need to purchase a hydride generator separately)

 

2.Application scope of atomic absorption spectrometer

Atomic absorption spectroscopy is widely used for analysis and testing in various industries such as hospitals, pharmaceuticals, steel, health and epidemic prevention, metal smelting industry, geology and mineral resources, chemical industry, water quality monitoring, food and dairy products, environmental monitoring, quality inspection, drug testing, agriculture, toys, electronics, etc.

 

Specifications        

Model	AAS-2001F8/F6/F3
1. Spectral system
Grating engraved lines	1800 lines/mm
wavelength range	190-900nm
spectral bandwidth	Eight levels of automatic adjustability: 0.1, 0.2, 0.4, 0.6, 0.7, 1.0, 1.4, and 2.0 nm
wavelength accuracy	≤0.15nm， Wavelength repeatability: ± 0.05nm
Baseline drift	Static ≤ 0.002A/30 minutes, dynamic ≤ 0.004A/30 minutes
light source	Automatic switching turret with eight light positions, automatic alignment
High performance power supply	Built in high-performance lamp dual cathode power supply is used to measure edge energy spectral line interference and unstable elements such as arsenic, selenium, mercury, etc. High performance dual cathode luminescence improves luminescence intensity, prolongs element lamp service life, and enhances instrument testing stability and sensitivity
Instrument light source light bracket turret	Adopting dual synchronous wheel technology control to improve accuracy and ensure smooth and reliable operation of the lighthouse
External optical path of the instrument	By using a focusing type semi transparent and semi reflective device, the effective light source of the background is accurately combined with the main light path to improve the accuracy and stability of data analysis
Monochromator	By using a worm gear transmission method to control the spectral system, the resolution accuracy of the optical path is greatly improved, and the wavelength accuracy of scanning the measured elements is also greatly improved
3.Flame atomizer
Characteristic concentration (Cu)	0.015μg/mL/1%
Detection limit (Cu)	0.003μg/mL
precision	RSD≤0.5%

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