No products in the cart.
Description
Shimadzu SPD‑M20A Diode Array Detector (DAD)
Shimadzu SPD‑M20A Diode Array Detector (DAD) is a high-performance UV/Vis detector designed for advanced HPLC analysis, delivering reliable multi-wavelength detection and full spectral acquisition. As part of the Shimadzu Prominence series, it provides excellent sensitivity, stability, and accuracy for demanding analytical workflows.
The SPD‑M20A allows simultaneous monitoring across multiple wavelengths, enabling comprehensive peak identification, spectral analysis, and peak purity assessment. Its wide wavelength range and high-resolution optical system make it suitable for complex sample matrices and trace-level detection.
Equipped with temperature-controlled flow cell technology and light-source compensation, the detector ensures stable baseline performance and minimal signal drift during long analytical runs.
The Shimadzu SPD‑M20A is ideal for pharmaceutical, environmental, food safety, and research laboratories requiring reliable, high-sensitivity chromatographic detection.
This refurbished Shimadzu SPD-M20A DAD has been fully tested and verified to be in proper working condition by Alliant Scientific.
Includes:
- Shimadzu SPD-M20A DAD
- 30 Day Warranty Coverage
Disclaimer: All brand names and trademarks are the property of their respective owners and are used for identification only. We are not an authorized dealer. Software, if included, is not transferable or upgradable.
Technical Specifications
- Detector type: Photodiode Array (PDA/DAD)
- Wavelength range: 190–800 nm
- Number of diode elements: 512
- Wavelength accuracy: ±1 nm
- Wavelength precision: ±0.1 nm
- Bandwidth (slit width): 1.2 nm (high resolution), 8 nm (high sensitivity)
- Noise: 0.6 × 10⁻⁵ AU
- Linearity: Up to 2.0 AU
- Flow cell: 10 mm path length, 10 µL volume
- Temperature control: 5°C above ambient to 50°C
- Light source: Deuterium and tungsten lamps
- Dimensions: Approx. 260 × 140 × 420 mm
Additional information
| Availability | |
|---|---|
| Brand | |
| Condition | |
| Onsite Installation | |
| Warranty | |
| Model |
Key Features
- High-sensitivity diode array detection for HPLC analysis
- Simultaneous multi-wavelength monitoring and full spectral scanning
- Wide wavelength range (190–800 nm) for diverse applications
- Excellent baseline stability with temperature-controlled flow cell
- Advanced optical system with low noise and high resolution
- Peak purity analysis and compound identification capabilities
- Compatible with Shimadzu Prominence LC systems
- Spectrum library and contour plotting functionality
- Reliable performance for routine and advanced analytical methods
Applications
- Pharmaceutical analysis – API and impurity profiling
- Environmental testing – pollutant detection
- Food and beverage – additive and contaminant analysis
- Chemical analysis – compound identification and quantification
- Biopharmaceutical research – protein and biomolecule detection
- Quality control laboratories – routine sample verification
Frequently Asked Questions
- What is the Shimadzu SPD‑M20A used for?
The SPD‑M20A is a diode array detector used in HPLC systems for detecting and analyzing compounds across multiple wavelengths, enabling accurate identification and quantification. - What type of detector is the SPD‑M20A?
It is a photodiode array detector (PDA/DAD), which allows simultaneous multi-wavelength detection and full spectral scanning. - What is the wavelength range of the SPD‑M20A?
The detector operates across a wavelength range of 190 to 800 nm, making it suitable for UV and visible light analysis. [1](https://www.ietltd.com/pdf_datasheets/LC-20AT%20Data%20Sheet.pdf) - What advantages does a diode array detector provide?
A DAD enables full spectrum acquisition, peak purity analysis, and the ability to monitor multiple wavelengths at once, improving compound identification and analytical accuracy. - Can the SPD‑M20A perform peak purity analysis?
Yes, it can analyze spectral data across peaks, allowing users to verify compound purity and detect co-eluting substances. - Is this detector compatible with Shimadzu HPLC systems?
Yes, the SPD‑M20A is designed for use with Shimadzu Prominence LC systems and can also integrate with other compatible HPLC platforms. - What light sources are used in the SPD‑M20A?
The detector uses both a deuterium (UV) lamp and a tungsten (visible) lamp for broad wavelength coverage. - How does the detector ensure stable results?
It features temperature-controlled flow cell technology and light-source compensation, which help maintain baseline stability and reduce noise during analysis. - What types of applications is this detector suitable for?
It is widely used in pharmaceutical analysis, environmental testing, food safety, chemical analysis, and research laboratories. - What is the benefit of multi-wavelength detection?
Multi-wavelength detection allows simultaneous monitoring of different compounds in a sample, improving efficiency and reducing analysis time. - Can this detector be used for trace-level detection?
Yes, the SPD‑M20A provides high sensitivity and low noise levels, making it suitable for detecting trace impurities and low-concentration analytes. - Is this detector suitable for regulated laboratory environments?
Yes, it is commonly used in GMP/GLP environments due to its reliability, data integrity features, and consistent performance.
