Atomfair-FS638 Molecular Fluorescence Spectrophotometer
Product Overview
Atomfair-FS638 is a versatile analytical molecular fluorescence detection instrument that boasts stable performance, user-friendly operation, a compact footprint, and excellent cost-effectiveness. It enables qualitative and quantitative analysis of fluorescent samples, supporting two operating modes: standalone offline operation and computer-connected online control. Particularly suitable for users with limited budgets who do not require full computer control, this instrument can also serve as a dedicated testing system for vitamin C content determination.
Core Features
1. Advanced Spectroscopic Technology
Equipped with high-specification optical components, including a large-sized (60mm*60mm) concave holographic ruled grating, it offers a large light-transmitting aperture and high light efficiency. Innovatively adopting a dual Φ45mm quartz lens design, compared to traditional single small-sized lenses, it significantly improves fluorescence collection efficiency, ensuring detection accuracy.
2. High Sensitivity, High Speed, and High Reliability
Low Sample Requirement: Optimized with a unique slit design, it reduces the amount of sample extraction, lowering detection costs and sample loss.
High-Speed and Accurate Scanning: A high-performance drive motor combined with an advanced data acquisition system captures abundant data points during scanning, guaranteeing the authenticity and accuracy of test spectra.
Light Shielding Protection System: Equipped with a light-blocking shutter on the excitation side to effectively reduce sample exposure time and protect photosensitive samples; a gated shutter on the emission side prevents the detector from direct exposure to strong light, extending the device’s service life.
3. User-Friendly Design
Easy Accessory Replacement: The humanized design allows for convenient replacement of core components such as excitation filters and light sources, which can be used directly without additional adjustments after replacement.
Flexible Function Expansion: Supports compatibility with accessories like solid sample holders and filters to expand application scenarios.
Worry-Free Offline Operation: Features a large-sized blue LCD display (320*240 pixels) for clear spectrum visualization; a full-keyboard digital input design provides a user-friendly human-machine interface, enabling efficient and convenient testing operations.
Professional Certification Service: Offers 3Q certification and installation services to ensure compliant use of the equipment.
Technical Specifications
| Item | Specification |
| Test Functions | Fluorescence detection, luminescence detection |
| Test Items | Wavelength scanning, time scanning, photometric measurement |
| Sensitivity (P-P) | >150:1 (Water Raman peak) |
| Wavelength Accuracy | ±1.0 nm |
| Wavelength Repeatability | ≤0.5 nm |
| Light Source | 150W high-intensity long-life high-pressure lamp (imported light source with automatic ozone removal function) |
| Wavelength Range | Excitation (EX): Standard 365nm, optional 200~800nm; Emission (EM): 200~900 nm |
| Spectral Bandwidth | Excitation (EX): 10.0 nm; Emission (EM): 10.0 nm |
| Wavelength Scanning Speed | 30, 60, 120, 240, 1200, 12000, 30000 nm/min |
| Scanning Interval | Minimum 0.2 nm, Maximum 1.0 nm |
| Response Time | 4 ms ~ 8 s (8 adjustable levels) |
| Light-Blocking Shutter | Standard configuration |
| Gated Shutter | Standard configuration |
| Minimum Sample Volume | 0.5 mL (compatible with 10mm standard cuvettes) |
| Photometric Range | -9999~9999 |
| Operating Modes | Online mode / Offline mode |
| Transmission Interface | USB2.0 |
| Printing Function | Supports online printing and offline printing |
| Device Dimensions / Weight | 600mm×450mm×335mm; Approximately 33kg |
| Compatible Systems | Windows XP, Windows 7 |
Applications
- Determination of vitamin C content in food;
- Determination of vitamin B1 content;
- Determination of vitamin B2 content in multivitamin tablets;
- Determination of aflatoxin content;
- Determination of benzo(a)pyrene content;
- Determination of selenium element content;
- Determination of petroleum hydrocarbon content in marine organisms;
- Determination of petroleum-like content in water quality;
- Research on luminescent properties of upconversion materials;
- Determination of aluminum salt content in calcium acetate and magnesium chloride.
If you’re interested, have any questions, or have specific customization requirements, please feel free to contact us at inquiry@atomfair.com.
What is the signal-to-noise performance of the Atomfair-FS638 for trace fluorescence measurements?
The Atomfair-FS638 achieves a sensitivity of >150:1 (Water Raman peak). This is enabled by its large concave holographic ruled grating (60mm×60mm) and dual Φ45mm quartz lens design that enhances fluorescence collection efficiency, ensuring reliable detection of low-concentration analytes.
Can the Atomfair-FS638 be used for standalone vitamin C analysis without a computer?
Yes, the Atomfair-FS638 supports standalone offline operation with a large blue LCD display (320×240 pixels) and full-keyboard input, making it suitable as a dedicated testing system for vitamin C content determination without computer control. It also offers USB2.0 connectivity for online mode when needed.
What sample volume does the Atomfair-FS638 require, and how does it protect photosensitive samples?
The minimum sample volume is 0.5 mL when using 10mm standard cuvettes. The instrument includes a light-blocking shutter on the excitation side to reduce sample exposure time, protecting photosensitive samples, and a gated shutter on the emission side to prevent detector damage from direct strong light.
The Atomfair-FS638 Molecular Fluorescence Spectrophotometer combines a 60mm concave holographic grating with dual Φ45mm quartz lenses to deliver high-sensitivity fluorescence detection (P-P >150:1) and rapid scanning up to 30000 nm/min, while its dual-shutter protection and low sample volume (0.5 mL) make it suitable for budget-constrained labs requiring reliable qualitative and quantitative analysis of fluorescent compounds.
Positive
- High-sensitivity dual-lens optics: The 60mm×60mm concave holographic grating combined with dual Φ45mm quartz lenses enhances fluorescence collection efficiency and light throughput, enabling detection of weak signals with a P-P sensitivity >150:1 (Water Raman peak).
- Rapid scanning with low sample volume: Scanning speeds up to 30000 nm/min and a minimum sample volume of 0.5 mL reduce analysis time and sample consumption, lowering per-test costs while maintaining spectral accuracy (±1.0 nm).
Trade-offs
- Fixed spectral bandwidth limits resolution: Both excitation and emission bandwidths are fixed at 10.0 nm, which may restrict fine spectral resolution for samples with closely spaced emission peaks or complex matrices.
- Legacy OS and PC interface constraints: The instrument only supports Windows XP and Windows 7 via USB2.0, requiring users to maintain older computer systems or virtual machines for online control and data acquisition.
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).
