The Macylab AFS-680 is an Atomic Fluorescence Spectrometer designed for the high-sensitivity measurement of trace elements, particularly those capable of forming hydrides. Operating with a short focal length, non-dispersive closed optical system, it features a dual-channel design for measuring two elements simultaneously without channel interference.
To improve measurement stability, the instrument incorporates a translucent, corrosion-resistant ABS magnetic front door, which isolates the analytical environment from external air while allowing operators to observe chemical reactions online. It is widely utilized across environmental, geological, and food testing laboratories for the quantitative analysis of 12 specific trace elements, including Arsenic (As), Mercury (Hg), and Selenium (Se).
Key Features
Dual-Channel Simultaneous Detection: Utilizes a lane-splitting signal control module on the circuit. This ensures no channel interference occurs when two elements are measured at the same time, even if their sample concentrations differ significantly.
Optimized Optical Geometry: Reduces the excitation angle of the light source and the photomultiplier tube (PMT). This design increases the intensity of the received fluorescence signal while reducing background interference.
High-Efficiency Gas-Liquid Separation: Employs a gusher flow two-stage chemical gas-liquid reaction separation device. This supports complete chemical reactions and effective separation, which is highly beneficial for testing complex matrices like rock, ore, and soil.
Intelligent Lamp Management: Uses coded hollow cathode lamps driven by a pulse modulation and constant current power supply. The instrument automatically identifies the lamp and monitors its working state and service life.
Flexible Injection & Reagent Control: Features a 6-channel peristaltic pump that supports continuous flow injection and intermittent flow injection. A carrier gas flow stabilizing device eliminates bubbles generated by potassium borohydride online and reduces reagent diffusion effects.
Integrated Waste & Gas Management: Incorporates a pressure self-balancing liquid waste removal function that requires no additional discharge pump. Additionally, a specific gas circuit design allows for the shutdown of the Argon gas source at any time to conserve consumption.
Specifications
Parameter
Specification
Model
AFS-680
Optical Design
Short focal length, non-dispersive, integrated closed optical design
Measurement Channels
Dual-channel (simultaneous measurement of two elements)
6-channel peristaltic pump with software speed regulation
Injection Modes
Continuous flow injection, intermittent injection
Precision (RSD)
≤0.7%
Linear Range
Greater than three orders of magnitude
Detection Limit (As, Se, Pb, Bi, Sb, Te, Sn)
< 0.01 μg/L
Detection Limit (Hg, Cd)
< 0.001 μg/L
Detection Limit (Ge)
< 0.05 μg/L
Detection Limit (Zn)
< 1.0 μg/L
Detection Limit (Au)
< 3.0 μg/L
Safety Features
Instrument self-check and outage warning protection
Applications
The AFS-680 is utilized for trace analysis of 12 specific elements in diverse analytical fields:
Geological and Mining Testing: Determination of trace elements in complex matrices such as rock, ore, and soil extracts, supported by the two-stage gas-liquid separation device.
Environmental Monitoring: Analyzing water quality, wastewater, and environmental samples for heavy metal contaminants like Mercury, Arsenic, and Lead.
Food Safety: Routine detection of specified trace elements in agricultural and food products.
Speciation Analysis (Hyphenated Techniques): Capable of seamlessly connecting with liquid chromatography (LC) and online digestion units to realize speciation analysis of elements like Arsenic, Mercury, and Selenium.
Who is it for?
High-Throughput Testing Departments: Laboratories processing large sample volumes daily that benefit from simultaneous dual-channel measurement and comprehensive injection modes.
Geological and Environmental Labs: Analytical facilities that encounter complex sample matrices requiring robust matrix interference management and gas-liquid separation.
Quality Control Institutions: QC departments needing reliable software that offers double-channel independent curve correction and automatic dilution of high-concentration samples.
Why choose it?
Interference Management: The instrument maintains stability against common matrix elements (e.g., Fe, Al, Mg, Ca, K, Na). For precious metals (Au, Ag, Pt, Pd) that may cause interference, the testing protocol accommodates adding thiourea or reducing KBH4 to mitigate these effects.
Operational Convenience: The multifunctional reaction module integrates the hydrogenation reaction, gas-liquid separation, and waste liquid removal into one block, which reduces bubbles, simplifies the pipeline, and minimizes fault points. Operators can directly observe the flame state via an external filter observation window.
Certified Qualifications: The instrument complies with major product qualifications and safety standards, holding certifications including the European CE mark, North American ETL, FCC, RoHS, China CQC, and 3C.
Packaging, Installation & Operation
Packaging & Shipping
After unpacking the instrument, compare the contents with the packing list and check that all items are present and undamaged.
Installation & Setup
Place the spectrophotometer in a suitable location away from direct sunlight, dust, corrosive gases, and strong vibrations. For stable operation, keep it away from strong magnetic or electrical fields and electrical devices that may generate high-frequency fields.
Keep the area around and underneath the instrument clear to allow adequate airflow.
Use the appropriate power cord and connect the instrument to a grounded outlet.
Initial Operation
Turn on the spectrophotometer and allow it to warm up for the recommended time before taking measurements. Follow the instrument’s operating instructions to complete any required system initialization, calibration, or wavelength verification before measurement.
Exhibition
FAQ (Frequently Asked Questions)
The instrument is designed for the trace analysis of 12 elements: Arsenic (As), Mercury (Hg), Selenium (Se), Tin (Sn), Lead (Pb), Bismuth (Bi), Antimony (Sb), Tellurium (Te), Germanium (Ge), Cadmium (Cd), Zinc (Zn), and Gold (Au).
The AFS-680 features a lane-splitting signal control module on the circuit. This ensures that when two channels are measured simultaneously, there is no channel interference, even if the concentrations of the two elements in the sample differ significantly.
No. The exhaust system features a pressure self-balancing liquid waste removal function, which automatically discharges waste liquid without requiring an additional dedicated pump.
The instrument supports both continuous flow injection and intermittent flow injection through its 6-channel peristaltic pump. The intermittent method allows the sample blank to be introduced alternately, helping to avoid cross-contamination.
Yes. The instrument utilizes a high-efficiency gusher flow two-stage chemical gas-liquid reaction separation device. This makes the chemical reaction more complete and the gas-liquid separation highly effective, which is particularly suitable for complex samples like rock, ore, and soil.
