Atomic absorption spectrometer HM-AAS1

Instrument Introduction:

The flame atomic absorption spectrometer is a fully automatic and intelligent flame atomic absorption instrument developed by the company based on years of research and development experience. It is used to determine the content of constant, trace, trace metal elements and semi metal elements in various substances. The machine adopts a PC and Chinese interface operation software, making the instrument operation simple, intuitive and easy to understand. By utilizing advanced electronic circuit systems and USB 2.0 communication control, the instrument has achieved automatic adjustment of functions such as wavelength scanning, peak positioning, spectral passband width, rotating element lamp holder, atomizer height and position, gas flow rate, lamp current, and negative high voltage of photomultiplier tubes. The instrument stores the analysis operation reference conditions for all measured elements of multiple analysis methods. Users can also modify the operating conditions as needed, and save the operating conditions, working curves, and test results in a file, which can be retrieved for use and processing.

Performance Characteristics: (Host)

1. Total reflection achromatic optical system

The use of convex lenses as the focusing optical element of the instrument effectively solves the problem of chromatic aberration caused by different focal points of different elements and improves optical efficiency.  

2. C-T type monochromator

Using a 1800 L/mm grating with a dazzling wavelength of 230nm as the spectroscopic system.  

3. Eight Element Lighthouse

Eight lamp holder design, eight independent lamp power supplies, one lamp working, can achieve seven lamp preheating, saving time for lamp replacement and preheating.  

4. Fully automated design

Except for the power switch of the host, all functions of the instrument are controlled by.  

5. USB 3.0 communication method

The industry is the first to adopt USB 3.0 communication interface, which improves communication speed and is compatible with the latest computer systems.  

6. Background correction system

Equipped with two background correction modes, deuterium lamp and self absorption, with a background signal of 1A, it has a background correction ability of over 40 times.

Flame system:

1. Pure titanium atomization chamber, pure titanium combustion head

Effectively prevent corrosion and have a longer service life.  

2. Efficient glass atomizer

Adopting a specialized high-efficiency glass atomizer with a collision ball, the atomization efficiency is higher and maintenance is convenient.  

3. High precision quality flow controller for acetylene flow regulation

The mass flow controller accurately controls the acetylene flow rate with an accuracy of up to 1ml/min and dynamically monitors the flow rate.  

4. More security measures, instruments are safer and more reliable

1) Acetylene leakage protection

2) Acetylene pressure monitoring

3) Air pressure monitoring

4) Combustion head status monitoring

5) Flame state monitoring

6) Monitoring of water seal status

Technical indicators:

Monochromator type: Czerny Turner

Wavelength range: 190nm to 900nm

Wavelength accuracy: ± 0.25nm

Wavelength repeatability:<0.05nm

Spectral bandwidth: 0.1/0.2/0.4/0.7/1.4 nm with five automatic switching modes

Precision:<0.8%

Detection limit:<0.008ug/mL

Characteristic concentration:<0.025 μ g/ml/1%

Static stability: 0.003 Abs (static)

Dynamic stability: 0.004 Abs (dynamic)

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