Fluorescence Spectrophotometer Model No – LI-4200
$1,275,000.00
The Lasany LI-4200 Fluorescence Spectrophotometer delivers next-generation molecular luminescence analysis with a 150W Hamamatsu Xenon lamp, ultra-wide 200–900nm excitation and emission range, and an industry-leading scan speed of 48,000 nm/min. Capture classic fluorescence spectra in just 1 second with a detection limit as low as ≤1×10⁻¹⁰ g/mL — engineered for pharmaceutical, biochemical, food safety, and water quality labs requiring ultra-trace precision. Dual beam monitoring, built-in optical gate, and high linearity (γ ≥0.995) ensure stable, reproducible results every time. ISO 9001:2015, WHO-GMP, and CE certified for global compliance.
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Description
The **Lasany LI-4200 Fluorescence Spectrophotometer** is a high-performance molecular luminescence analysis instrument engineered for laboratories that demand exceptional detection sensitivity, ultra-fast scanning, and a wide spectral measurement range. Powered by a 150W Hamamatsu Xenon lamp and equipped with a double monochromator optical design, the LI-4200 covers an excitation and emission wavelength range of 200–900 nm, making it one of the most versatile fluorescence spectrophotometers available in its class. Certified to ISO 9001:2015, WHO-GMP, and EN-61326-1:2013, it is a trusted analytical instrument for pharmaceutical analysis, biochemical research, clinical testing, food safety, and water quality laboratories worldwide.
Key Features
– Ultra-high sensitivity with water Raman peak signal-to-noise ratio exceeding 150 (P-P) — ideal for trace-level fluorescence detection
– World-class scanning speed of 48,000 nm/min — classic fluorescence spectra captured in just 1 second
– Three-dimensional fluorescence spectra achievable in under 1 minute
– Double monochromator design for wide excitation and emission range of 200–900 nm
– Excitation light dual beam ratio monitoring system for stable, reliable fluorescence signals
– Built-in optical gate specifically designed for unstable or photosensitive samples
– Hamamatsu Xenon light source with photoelectric multiplier tube detector for maximum signal intensity
– High linearity (γ ≥ 0.995) and peak repeatability of ≤1.5% ensuring consistent quantitative results
– USB 2.0 data output for straightforward PC connectivity and data management
– Wide range of optional accessories including Peltier temperature-controlled holder, powder and membrane sample holders, auto polarization filter, and double frequency filters
Technical Specifications
| Parameter | Specification |
|—|—|
| Model | LI-4200 |
| Excitation Source | 150W Xenon Lamp (Hamamatsu) |
| Excitation Wavelength | 200–900 nm |
| Emission Wavelength | 200–900 nm |
| Excitation Slit | 10 nm |
| Emission Slit | 10 nm |
| Wavelength Accuracy | ±1.0 nm |
| Wavelength Repeatability | 0.5 nm |
| Signal-to-Noise Ratio | S/N ≥150 (P-P, 10nm slit); S/N ≥800 (RMS) |
| Detection Limit | ≤1×10⁻¹⁰ g/mL (Quinine Sulfate Solution) |
| Linearity | γ ≥ 0.995 |
| Peak Repeatability | ≤1.5% |
| Stability (10 min) | Zero Drift ±0.3; Value Limit ±1.5% |
| Wavelength Scan Speed | Multi-speed, max 48,000 nm/min |
| Photometric Quantity Range | 0.00–10,000.00 |
| Data Transportation | USB 2.0 |
| Power | 200W |
| Power Source | AC 220V/50Hz; 110V/60Hz |
| Dimensions | 380 × 445 × 310 mm |
| Weight | Net 12 kg / Gross 14 kg |
Applications
The LI-4200 Fluorescence Spectrophotometer is purpose-built for a broad spectrum of analytical applications. In pharmaceutical and biochemical research, it enables precise quantification of fluorescent compounds, drug metabolites, and biological markers. In clinical and diagnostic testing, it supports detailed analysis of proteins, enzymes, and nucleic acids. Its extraordinary sensitivity makes it particularly effective for food safety testing — detecting trace contaminants such as aflatoxin, selenium, and vitamin C in dairy and aquatic products. Water quality laboratories rely on it for pollutant and organic compound detection, while material science researchers use it for 3D fluorescence mapping and luminescence characterization.
Benefits of the LI-4200
The LI-4200 stands out through a combination of specifications that are rarely found together at this price point. Its detection limit of ≤1×10⁻¹⁰ g/mL for quinine sulfate solution reflects genuine ultra-trace sensitivity, enabling detection of fluorescent analytes at concentrations that basic spectrofluorometers cannot resolve. The 48,000 nm/min scan speed dramatically reduces per-sample analysis time in high-throughput workflows, while the 3D fluorescence scanning capability opens advanced research possibilities in materials science and biochemistry. The inclusion of a Peltier temperature control holder as an optional accessory allows kinetic studies and temperature-dependent fluorescence measurements — a feature typically reserved for higher-priced research instruments.
Why Choose Lasany International
Lasany International is an ISO 9001:2015 and WHO-GMP certified manufacturer with a strong legacy of delivering precision laboratory instruments to pharmaceutical, research, and academic institutions across India and internationally. The LI-4200 is backed by multiple international certifications including EN-61326-1:2013 for electronic laboratory equipment, reflecting Lasany’s commitment to meeting global safety and performance standards. Comprehensive optional accessory support and dedicated after-sales service make the LI-4200 a long-term investment for any serious analytical laboratory.
Get in Touch with Us: –
Panchkula, Haryana
Website: https://lasany.org/
Address: SCF-132, Sector 17, Panchkula, Haryana 134109
Email:- lasanyinternationalindia@gmail.com,sales@lasanyspectrophotometers.com
Online Support:- 9888911439 / 9803017479
If you are looking for laboratory, analytical, and medical products, then Lasany International is the perfect choice for you
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