Atomfair-FAFS325 Flame Atomic Fluorescence Special Gold Analyzer
1. Product Introduction
Atomfair-FAFS325 Flame Atomic Fluorescence Special Gold Analyzer is a professional instrument specially developed and manufactured for geological prospecting scenarios, focusing on the accurate testing of trace gold and constant gold. The instrument has excellent test performance, the detection limit of gold is less than 0.05ng/mL, and the test has a wide linear range with a good linear relationship in the range of 0.05ng/mL – 5μg/mL. It only takes about 10 seconds to test a single sample with the test cost as low as 0.1 CNY, featuring high efficiency and economy. This product has won the Gold Award of the 17th Beijing Conference and Exhibition on Instrumental Analysis (BCEIA), and the relevant test methods have been incorporated into the unified industry analysis standards and officially implemented.
2. Working Principle
This instrument breaks through the principle limitations of traditional hydride generation atomic fluorescence spectrometers and adopts advanced flame atomic fluorescence spectrometry technology. Liquid samples are atomized into aerosols by a high-efficiency atomizer, and the aerosols are fully mixed with fuel gas in the premixed atomization chamber. Then the samples are evaporated, melted and decomposed into ground state atoms by combustion heat. The ground state atoms are excited to a high energy state by a high-performance hollow cathode lamp. The atoms in the high energy state are unstable and emit atomic fluorescence in the form of optical radiation during the de-excitation process. Since the intensity of atomic fluorescence is directly proportional to the content of the measured element in the sample, the gold content in the sample can be accurately determined by detecting the fluorescence intensity.
3. Core Functions
Equipped with single-channel enhanced detection function to improve detection sensitivity and accuracy;
Supports rapid establishment of standard curves, simplifies the test process and improves work efficiency;
Equipped with standard curve correction function to ensure the reliability of test data;
With background interference deduction function to effectively eliminate interference factors and ensure accurate test results;
Optional remote ignition function for more convenient and safe operation;
Adopts pressure self-balanced waste liquid discharge design for efficient and worry-free waste liquid treatment;
Configured with three-dimensional adjustment mechanism, which can flexibly adjust the three-dimensional parameters of the atomizer online to adapt to different test requirements;
Equipped with a flame observation window to observe the flame state in real time for timely operation adjustment;
Equipped with a user-friendly software interface, the test data interface can be flexibly edited. Information such as sample number, conversion coefficient and sample weight can be set freely before and after the test, and the system automatically completes the conversion; supports graphic display, playback, statistics and query of test data, and all kinds of graphics and data can be saved, output, backed up and printed on the page;
With instrument self-inspection and gas cut-off early warning protection function to comprehensively ensure the stable operation and operational safety of the instrument.
4. Technical Parameters (International Standard)
| Test Element | Detection Limit (DL) |
|---|---|
| Gold (Au) | < 0.05ng/mL |
| Silver (Ag) | < 0.02ng/mL |
| Copper (Cu) | < 0.2ng/mL |
| Cadmium (Cd) | < 0.01ng/mL |
| Zinc (Zn) | < 0.01ng/mL |
| Manganese (Mn) | < 1.0ng/mL |
| Indium (In) | < 2.0ng/mL |
| Nickel (Ni) | < 0.002ng/mL |
| Chromium (Cr) | < 0.08ng/mL |
| Cobalt (Co) | < 0.005ng/mL |
| Iron (Fe) | < 0.005ng/mL |
| Mercury (Hg) | < 0.005ng/mL |
| Lead (Pb) | < 0.005ng/mL |
| Repeatability (RSD) | < 0.6% |
| Linear Range | More than three orders of magnitude |
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
The Atomfair-FAFS325 Flame Atomic Fluorescence Spectrometer requires a compatible fuel gas supply and must be operated in a well-ventilated area to mitigate fire and explosion risks. The instrument's gas cut-off and self-inspection systems must be verified functional before each use to ensure safe operation.
- Remote Ignition: Use the optional remote ignition feature to ignite the flame from a safe distance and avoid direct exposure to the burner.
- Flame Monitoring: Monitor the flame state continuously through the observation window and adjust parameters if irregularities appear.
- Waste Liquid Disposal: Collect and dispose of waste liquid from the pressure self-balanced discharge system according to local environmental regulations.
- Gas Cut-Off Verification: Verify that the gas cut-off warning system alarms and shuts off gas flow during a simulated test trigger.
- Self-Inspection Check: Do not operate the instrument without first confirming that the self-inspection routine completes without error.
This procedure describes the safe startup, operation, and shutdown of the Atomfair-FAFS325 flame atomic fluorescence spectrometer for gold analysis. Standard safety checks include verifying gas cut-off systems and using remote ignition to minimize operator exposure to the flame.
Required Equipment: Fuel gas supply, Hollow cathode lamp, Atomizer with three-dimensional adjustment, Remote ignition device
- Connect gas supply
Connect the instrument to a certified fuel gas supply and ensure the ventilation system is active. - Run self-inspection
Power on the instrument and initiate the self-inspection routine to confirm all subsystems are operational. - Ignite flame remotely
Select the optional remote ignition mode and activate the flame using the remote control. - Set sample parameters
Set the sample parameters in the software, including sample number, conversion coefficient, and weight, before beginning analysis. - Shutdown safely
Turn off the gas supply after completing the test sequence and allow the flame to extinguish before powering down.
What is the detection limit for gold using the Atomfair-FAFS325, and how does the wide linear range affect measurement accuracy at trace versus high concentrations?
The detection limit for gold is less than 0.05 ng/mL, with a linear range spanning from 0.05 ng/mL to 5 μg/mL (over three orders of magnitude). The instrument maintains a repeatability of <0.6% RSD across this range, ensuring accurate quantification from trace to elevated gold concentrations without dilution steps.
How does the Atomfair-FAFS325 handle background interferences from complex geological matrices in gold analysis?
The instrument is equipped with a background interference deduction function that effectively eliminates interference factors to ensure accurate test results. Additionally, the use of flame atomic fluorescence spectrometry with a high-efficiency atomizer and premixed atomization chamber minimizes matrix effects, and the three-dimensional adjustment mechanism allows online optimization of atomizer parameters for different sample matrices.
What safety and gas supply infrastructure is required to operate the FAFS325 flame atomic fluorescence gold analyzer?
The instrument requires a fuel gas supply for the flame and is equipped with a gas cut-off early warning protection function and optional remote ignition for safer operation. It also features a pressure self-balanced waste liquid discharge design. The instrument includes a flame observation window for real-time monitoring, and the software provides gas cut-off warnings to ensure operational safety.
The Atomfair-FAFS325 Flame Atomic Fluorescence Special Gold Analyzer delivers sub-ng/mL detection limits for gold and multiple trace metals via flame atomic fluorescence spectrometry, with a linear range exceeding three orders of magnitude and a single-sample analysis time of approximately 10 seconds, making it well-suited for high-throughput geological prospecting workflows.
Positive
- Ultra-low detection limits for gold and trace metals: Achieves a gold detection limit below 0.05 ng/mL, with sub-ng/mL or low-ng/mL detection limits for Ag, Cu, Cd, Zn, Mn, In, Ni, Cr, Co, Fe, Hg, and Pb, enabling trace-level quantification in geological samples.
- High-throughput and cost-efficient analysis: Single-sample measurement takes approximately 10 seconds with a test cost of about 0.1 CNY, supporting rapid, economical screening of large sample batches common in prospecting.
Trade-offs
- Requires combustible fuel gas and combustion infrastructure: The flame atomic fluorescence technique depends on a stable supply of fuel gas and oxidant, necessitating proper gas handling, ventilation, and safety protocols in the laboratory.
- Sample preparation and matrix control required: Accurate results depend on proper sample digestion and matrix matching; background interference deduction is provided, but users must still manage matrix effects and ensure sample homogeneity for reliable quantification.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
