Overview
YOKE 3628AA graphite furnace atomic absorption spectrophotometer is a single beam of light analysis instrument, using transverse heating graphite furnace technology implementation temperature uniformity, wavelength range of 185nm-900nm. The instrument is easy to operate, fast Response speed, both deuterium lamp and self-priming full-band Background correction technology, and equipped with graphite furnace sampling visual system, can be used with Automatic sampler for effective analysis.
Features
1. Easy Operation, Fast Response, Low Cost and Simple Maintenance.
2. Adopt a unique anti-corrosion design.
3. Both deuterium lamp and self-priming full-band Background correction technology can automatically adjust the lamp position.
4. Adopt 4/8 lamp stand 360 ° automatic swirl/spin switching design, one lamp work, one lamp preheating, automatic adjustment and automatic adjustment of optimized parameters.
5. High performance Hollow cathode lamp can be configured.
6. Automatically control wavelength scanning and automatically seek peak positioning.
7. Adopt reliable transverse heating graphite furnace technology to achieve uniform temperature of graphite tubes.
8. Various heating temperature control methods: power control in the drying ashing stage, and light control maximum power mode in the atomization stage; heating methods include slope heating, step heating, and maximum power heating.
9. Equipped with the graphite furnace sampling visual system, the built-in stable and reliable observation system can intuitively and clearly observe the sampling process on the software without affecting the performance of the host.
10. Automatic sampler can be used for effective analysis.
Principle
The instrument is based on the principle of atomic absorption spectroscopy (AAS). The sample is heated atomization in a graphite furnace to form a ground state atomic vapor. When the characteristic spectral lines emitted by the Hollow cathode lamp pass through the atomic vapor, the ground state atoms of the element to be measured are selectively absorbed, resulting in a decrease in light intensity. The content of the element to be measured in the sample can be determined by measuring the degree of absorption of the characteristic spectral lines and comparing them with standard Linear dispersion. The instrument uses lateral heating technology to ensure uniform temperature of the graphite tube, and uses deuterium lamp and self-priming Background correction technology to eliminate background interference.
Applications
Environment monitoring, food safety, drug inspection, geology and minerals, metallurgy and chemical industry, medical and health, scientific research and education
Steps
1. Turn it on and warm up, and initialize the instrument.
2. Install and debug the required Hollow cathode lamp, and automatically seek peak positioning through software.
3. Set the analysis conditions, including wavelength, Light spectrum Bandwidth, graphite furnace heating program, etc.
4. Configure the standard solution series and establish the standard working Linear dispersion.
5. Observe and confirm the injection position through the visual system for sample testing (manual or Automatic sampler).
6. The instrument automatically collects and processes data to display the analysis results.
7. After the analysis, perform the graphite furnace cleaning procedure and turn off the instrument.
Notice
• The instrument should be placed in a stable, vibration-free environment away from strong electromagnetic interference and corrosive gases.
• Make sure the power supply is stable before use and fully preheat as required.
• Pay attention to high temperature when operating the graphite furnace to prevent burns.
• Regularly check and clean the Optical inspection system, graphite tube and injection system.
• Use high-purity argon that meets the requirements as a protective gas.
Sample pretreatment should be standardized to avoid interference or contamination.
• Use in strict accordance with the operating procedures, and non-professionals should not disassemble and repair without authorization.
