Description
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.





