Food Quality Testing丨Drug Development and Quality Control丨Quasi-Dual Beam UV-Vis Spectrophotometer丨Direct from Manufacturer
Contact Info
- Add:江蘇省宿遷市經(jīng)濟(jì)開(kāi)發(fā)區(qū)人民大道188號(hào)嘉禾頤苑1031號(hào), Zip: 223800
- Contact: 劉生
- Tel:17751088288
- Email:1113539868@qq.com
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The JLU-2200R quasi-double beam UV-Vis spectrophotometer features a simple structure, stable and reliable performance, and accurate readings. It covers a continuous spectral wavelength range of 190–1100 nm, enabling qualitative and quantitative analysis of samples in the ultraviolet, visible, and near-infrared spectral regions. Widely used in university basic teaching, healthcare, clinical testing, biochemistry, petrochemicals, environmental monitoring, food safety, quality control, metallurgy, electric power, and many other fields, it is a commonly used analytical instrument in laboratories. Compliant with standards including: ASTM D792, ASTM D297, GB/T1033, GB/T2951, GB/T3850, GB/T533, HG4-1468, JIS K6268, ISO 2781, ISO 1183, and more.
Principle: Substances exhibit selective absorption of light. Under light excitation, an absorption effect occurs. Different substances have their own characteristic absorption spectra. When monochromatic light passes through a solution, its energy is absorbed and attenuated. The degree of attenuation is proportional to the concentration of the substance. Based on the Lambert-Beer law, this method utilizes the selective absorption of light at specific wavelengths to identify substances or determine their concentration.
Technical Specifications and Basic Parameters:
Model | JLU-2200R | JLV-2200R |
Spectral Bandwidth | 2.0nm | |
Wavelength Range | 190~1100nm | 320~1100nm |
Optical System | Quasi-double beam ratio monitoring optical path, holographic diffraction grating | |
Wavelength Accuracy | ±0.8nm | |
Wavelength Repeatability | ≤0.2nm | |
Wavelength Setting | Automatic wavelength setting, wavelength resolution 0.1nm | |
Photometric Range | 0~200%T, -0.3~3A, 0~9999C, 0~9999F | |
Photometric Accuracy | ±0.3%T (0~100%T) | |
Photometric Repeatability | ≤0.15%T (0~100%T) | |
Stray Light | ≤0.05%T (220/360nm) | |
Baseline Drift (Stability) | ≤0.001A/h (500nm,0A) | |
Noise | ±0.001Abs (at 500nm) | |
Baseline Flatness | ±0.002A | |
Scanning Speed | Three adjustable levels: high, medium, low | |
Detector | Imported silicon photodiode | |
Light Source | Imported long-life tungsten lamp and deuterium lamp (no optical adjustment required) | |
Display | 3-inch 128*64 dot matrix LCD | |
Keyboard | Tactile membrane keys | |
Data Interface | USB, RS-232 | |
Print Output | Micro printer; PC printer (for online use) | |
PC Software | PC scanning analysis software (optional) | |
Power Supply | AC90-250V, 50/60Hz | |
Dimensions | 430x320x195mm | |
Weight | 12kg | 10kg |
Instrument Functions
◆ Photometric measurement: Transmittance T%, Absorbance Abs, Energy E
◆ Quantitative testing: Concentration content C (coefficient method, standard curve method)
◆ Wavelength scanning (spectral scanning): PC online function
◆ Time scanning (kinetics): PC online function
◆ DNA/Protein determination: PC online function
◆ Multi-wavelength testing: PC online function
◆ Other functions: System application, data processing, report printing, etc.
| Industry Category | Chemicals/Dyes/Direct Dyes |
|---|---|
| Product Category | |
| Brand: | 巨立 |
| Spec: | JLU-2200R |
| Stock: | |
| Origin: | China / Jiangsu / Suqianshi |
