Item#: 11290
Model: SPD-M20A
Condition: Tested
Manufacturer: Shimadzu
The SPD-M20A High Performance Liquid Chromatography PDA detector provides users with the most advanced level of sensitivity and stability found in today's PDA detectors. Sharing many of the qualities of the SPD-20A/20AV UV-Vis Detectors, the SPD-M20A attains sensitivity levels approaching the most advanced UV-Vis detectors. It has a high-sensitivity mode with an 8 nm slit width. Using light-source compensation, it offers a noise level of 0.6×10-5 AU, which is comparable to that of traditional UV-VIS detectors.
Greater Baseline Stability
Supplied as standard, a temperature-controlled flow cell eliminates inconsistencies caused by changes in absorbance due to shifts in room temperature. This helps increase the baseline stability and the analysis reliability.
Superior Linearity - 2.0AU
Using newly developed signal processing technology, the stray-light correction function has been enhanced, and the linearity has been improved. This expanded linearity combines with various noise-reduction technologies to provide users with a wide dynamic range and allow for the analysis of your target compound and minor impurities in a single run.
Web Browser Control
The SPD-M20A is equipped with an Ethernet interface and Web-control functions, allowing devices to be monitored and controlled from PCs in the network. As a standalone high-sensitivity multi-wavelength detector, it can be incorporated into non-Shimadzu HPLC systems.
| Photodiode array elements | 512 elements |
| Light source | Deuterium lamp, Tungsten lamp |
| Measurement wavelength range | 190 – 800 nm |
| Wavelength accuracy | ± 1 nm |
| Element resolution | 1.2 nm / element |
| Slit width | 1.2 nm, 8 nm; slit switching possible |
| Spectral resolution | 1.4 nm or less (using 253.7 nm low voltage Mercury lamp emission line, 1.2 nm slit) |
| Noise level | ± 0.3x10-3 AU/h or less |
| Drift | 0.5x10-3 AU/h or less |
| Temperature coefficient | 0.5x10-3 AU/℃ or less (250 nm, 600 nm, air cell, time constant 2 sec) |
| Interface | Ethernet |
| Analog | output 4 channels |
| Analog output range | 0.5, 1, 1.25, 2, 2.5, 4 AU/V (selectable) |
| Voltage output range | -0.1 – 1.0 (V) |
| Safety features | Temperature sensor: 100℃ (lamp housing heat protection) Temperature fuse: 116℃ (power supply circuit board protection) Leak sensors: Leak detection at flow cell and tubing joints |
| Lamp cover | sensor Lamp automatically extinguished if the cover is removed (UV light protection, high voltage protection) |
| Operating conditions | 4 – 35℃, 45 – 85% humidity, no condensation |
| Dimensions and weight | W 260 x H 140 x D 420 mm; 12 kg |
| Power requirements | 100/120/220-240 VAC, 150 VA, 50/60 Hz |
| Standard Flow Cell Specifications: | |
| Optical path length | 10 mm |
| Cell volume | 10 µl |
| Pressure resistance | 12 MPa |
| Wetted surface materials | SUS316L, quartz glass, PFA |
| Inlet tubing | I.D. 0.25 mm x length 550 mm |
| Outlet tubing | I.D. 0.25 mm x length 250 mm |
| Cell temperature control | Yes |
| Cell temperature control settings | OFF, 9 – 50℃ (in 1℃ steps), set at ambient +5℃ or above |
| Cell temperature control precision | 0.1 |
