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China WFX-220 Series Atomic Absorption Spectrometer - Reliable Suppliers and Factory Solutions
Features
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Higher Reliability
- Intelligent feedback detection technology, real-time monitoring of the instantaneous current of the light source, preventing DC lighting, more reliable protection of the hollow cathode lamp.
- Mature technology of aberration eliminated C-T type monochromator, with stable performance.
- Independent modular circuit design, no interference with each other, easier for daily use and maintenance.
- High-reliability gas-liquid separator and fuel gas filter device, providing the robustness even in high humid and harsh environment.
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Higher Security
- Modular gas supply management system of flame/graphite furnace atomization system realizes lower failure rate, and further improves safety and reliability.
- High-precision mass flow controller in flame system, with mature and stable circuit system, realizing precise control of gas flow.
- Temperature control protection system together with dual air circuit breakers in GF system, effectively preventing current overload or abnormal temperature rise.
- Multiple safety interlock devices with fully automatic power-off protection and alarm, preventing problems before they happen. Alarm and automatic flame shut down and gas cut-off for ignition failure, fuel gas leakage, abnormal flow in flame system; Alarm and automatic electric protection for abnormal water and gas control, abnormal graphite tube installation and abnormal temperature control in graphite furnace system.
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Easier to Use
- Uniquely designed 8-lamp turret: fully automatic switching, collimation and optimization; "power balance + sequence intelligent adjustment technology" realizing accurate synchronization of the light source signal, easily supporting 1 lamp working, 0–7 lamp preheating at the same time, to meet diversified task requirements.
- Automatically controlled changeover of the integrated flame/graphite furnace atomizer featuring easy operation and time saving eliminates human labor (model A).
- Quick-displacement flame emission burner designed for easily ionized elements such as K, Na, etc., allows you to obtain a linear range of 3 times that of conventional flame methods, effectively reducing dilution steps and narrow linear range problems of similar elements.
- Temperature control modes in graphite furnace analysis can be switched over easily between optical control and constant voltage control, according to different elements and graphite tubes, for the best results and extending the lifetime of graphite tubes.
- Newly developed analysis software with decades of experience, realizing automatic instrument optimization, setting all conditions in one go. Simple and comfortable human-machine dialogue makes newcomers easy to get started. Expert database eliminates the worries of your analysis work.
Specifications
- Wavelength Range: 190–900nm
- Wavelength Accuracy & Reproducibility: Accuracy: better than ±0.20nm; Reproducibility: better than 0.06nm
- Resolution: 0.2nm ± 0.02nm
- Baseline Stability: Static: baseline drift ≤0.003 Abs/30min, Instantaneous noise ≤0.0005 Abs; Dynamic: baseline drift ≤0.003 Abs/15min, Instantaneous noise ≤0.003 Abs
- Cu Determination by Flame: Detection limit ≤0.003 µg/ml
- Sensitivity: ≤0.03 µg/mL/1%
- Precision: ≤0.5%
- Linear Correlation Coefficient: ≥0.9998; Linear range ≥0.65 Abs
📌 Cd Determination by Graphite Furnace:
- Detection Limit: ≤0.5pg
- Sensitivity: ≤0.6pg
- Precision: ≤2.8%
- Linear Correlation Coefficient: ≥0.9994
📌 Background Correction:
- D2 lamp background correction capability at 1A is better than 30 times. S-H background correction capability at 1.8A is better than 30 times.
Frequently Asked Questions
Q What is the wavelength range of this atomic absorption spectrometer?
The instrument covers a wavelength range of 190–900nm, making it suitable for the detection of a wide variety of elements across both flame and graphite furnace methods.
Q How does the 8-lamp turret improve analytical efficiency?
The uniquely designed 8-lamp turret supports fully automatic switching, collimation, and optimization. Using "power balance + sequence intelligent adjustment technology," it allows 1 lamp to work while simultaneously preheating up to 7 lamps, significantly reducing wait times and supporting diverse analytical tasks.
Q What safety features are built into the flame and graphite furnace systems?
The instrument includes multiple safety interlock devices with fully automatic power-off protection and alarm systems. These cover ignition failure, fuel gas leakage, abnormal flow in the flame system, as well as abnormal water/gas control, graphite tube installation issues, and temperature anomalies in the graphite furnace system.
Q Can the instrument switch between flame and graphite furnace modes automatically?
Yes. Model A features an automatically controlled changeover of the integrated flame/graphite furnace atomizer, enabling easy and time-saving transitions between the two modes without manual intervention.
Q What background correction methods are available?
The instrument supports both D2 lamp background correction (capability at 1A better than 30 times) and S-H (Smith-Hieftje) background correction (capability at 1.8A better than 30 times), ensuring accurate results even in complex matrices.
Q Is the instrument suitable for operators with limited experience?
Yes. The newly developed analysis software features automatic instrument optimization and one-step condition setting. Its intuitive human-machine interface and built-in expert database make it easy for newcomers to get started and conduct reliable analyses with minimal training.