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Lasany LI-2704 UV-VIS Double Beam Spectrophotometer for Professional Lab Applications
The Lasany LI-2704 Microprocessor UV-VIS Double Beam Spectrophotometer is an analytical laboratory instrument designed for measuring absorbance and transmittance in ultraviolet and visible wavelength regions. Its double-beam optical system measures sample and reference signals to support stable and repeatable spectroscopic analysis.
Designed for professional laboratories, research institutions and quality-control environments, the Lasany LI-2704 supports applications in pharmaceutical analysis, chemical testing, environmental monitoring, food testing, biotechnology and academic research. Its microprocessor-based controls and selectable measurement functions help users carry out routine analytical procedures efficiently.
Key Features of Lasany LI-2704
- Double-Beam Optical System: Compares sample and reference signals to support stable measurements.
- Wide UV-VIS Wavelength Range: Covers wavelengths from 190 nm to 1100 nm.
- 1 nm Spectral Bandwidth: Supports wavelength-selective analysis across the instrument’s specified range.
- Microprocessor Control: Provides controlled instrument operation and measurement functions.
- Multiple Photometric Modes: Supports absorbance, transmittance and concentration measurement modes.
- Automatic Wavelength Setting: Supports automatic wavelength selection according to the instrument specification.
- Deuterium and Tungsten Lamps: Provides UV and visible light sources for spectroscopic measurements.
- Silicon Photodiode Detector: Detects optical signals for analytical measurement.
- Laboratory Applications: Suitable for compatible pharmaceutical, chemical, food, environmental and academic testing procedures.
Lasany LI-2704 Technical Specifications
| Specification | Details |
|---|---|
| Brand | Lasany |
| Model | LI-2704 |
| Product Type | Microprocessor UV-VIS Double Beam Spectrophotometer |
| Optical System | Double Beam |
| Wavelength Range | 190–1100 nm |
| Spectral Bandwidth | 1 nm |
| Wavelength Accuracy | ±0.1 nm at 656.1 nm (D2); ±0.3 nm across the full wavelength range, as listed in the manufacturer’s documentation |
| Wavelength Repeatability | 0.1 nm |
| Photometric Accuracy | ±0.3%T over 0–100%T |
| Photometric Repeatability | 0.001 Abs over 0–0.5 Abs |
| Photometric Range | -3 A to +3 A |
| Stray Light | ≤0.02%T at specified test wavelengths, according to the manufacturer’s documentation |
| Stability | ±0.0004 A/hour at 500 nm |
| Baseline Flatness | ±0.001 A |
| Noise | 0.0003 A/hour, as specified in the available technical documentation |
| Light Source | Deuterium and tungsten lamps |
| Detector | Silicon photodiode |
| Wavelength Setting | Automatic |
| Photometric Modes | Absorbance (A), Transmittance (T) and Concentration (C) |
| Scanning Speed | Fast, medium and slow modes, as specified in the available documentation |
| Cell Holder | Confirm the supplied cell-holder configuration |
| Data Interface | USB and printer interface, according to the documented configuration |
| Power Supply | AC 220 V, 50 Hz; confirm the supplied unit’s electrical rating |
| Dimensions | 590 × 460 × 220 mm, according to available technical documentation; confirm the exact model revision |
| Weight | Approximately 25 kg, according to available technical documentation |
| Warranty | Refer to the supplier’s applicable warranty terms |
Absorbance and Transmittance Analysis
The Lasany LI-2704 is designed for spectroscopic measurement of how samples absorb or transmit light at selected wavelengths. These measurements can support quantitative analysis, concentration determination and routine quality-control procedures when used with appropriate methods, standards and sample preparation.
Its double-beam optical arrangement compares sample and reference signals, helping laboratories perform consistent measurements across the instrument’s supported UV-VIS range. Actual analytical performance depends on the sample, method, calibration, operating conditions and instrument maintenance.
Applications in Professional Laboratories
- Pharmaceutical Laboratories: Compatible analytical testing and quality-control procedures.
- Chemical Laboratories: Absorbance and transmittance measurements for chemical analysis.
- Environmental Testing: Spectrophotometric analysis of prepared water and environmental samples.
- Food and Beverage Testing: Analysis of compatible samples using validated methods.
- Biotechnology and Biochemistry: Suitable UV-VIS measurements for applicable laboratory assays.
- Educational Institutions: Instrumental analysis and laboratory practicals in colleges and universities.
- Research and Quality Control: Routine spectroscopic measurement in professional analytical environments.
Laboratory Operation and Data Handling
The microprocessor-controlled interface supports the instrument’s measurement functions and wavelength selection. The available interface options can support data transfer or printing when used with compatible connections and software. Confirm the exact software package, computer compatibility and included accessories before purchase.
Important Product Information
The Lasany LI-2704 is a laboratory analytical instrument intended for trained users following appropriate operating procedures. Confirm the exact model number, cell-holder arrangement, software, communication interfaces, calibration requirements, included accessories and warranty with the supplier before finalizing the order.
SEO Product Title: Lasany LI-2704 Microprocessor UV-VIS Double Beam Spectrophotometer for Professional Laboratory Analysis
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