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Most users are familiar with the use of standard 1 cm cuvettes for sample analysis. The 400 Series UV/Vis spectrophotometers extend their capabilities to the use of dip probes for facilitating analysis while lending themselves to real-time monitoring of kinetic reactions.




Model 420 UV/Visible Spectrophotometer

S.I. Photonics continues to dominate UV-Vis spectroscopy with the revolutionary design of the 400 Series UV-Vis Spectrophotometers. High sensitivity, low noise charge coupled device (CCD) detectors provide the ability to acquire a full spectrum in the time it takes scanning UV-Vis spectrophotometers to acquire a single wavelength.

UV/Vis Spectrophotometer The 400 Series Spectrophotometers have become the industry leader for high performance UV-Vis spectroscopy. Analytical performance and long term stability closely matches those of double beam instruments costing twice as much.

Performance Specifications

Wavelength Range ................................................200 nm - 950 nm
Spectral Bandwidth ...............................................1.0 nm
Photometric Range .............................................. 0.002 -3.2 AU
Photometric Accuracy .......................................... 0.005 AU
Baseline Stability ................................................. <0.005 AU/hour
Stray Light.............................................................. <0.02%
Typical Speed ...................................................... 1 spectra/sec

General Specifications

Size...................................................................9 x 13 x 5.5 (inches)
Power................................................................110/220 VAC, 0.8A
Approvals..........................................................Safety agency certifications include UL, CSA
System Detector............................................... 2,048 element linear CCD
Grating...............................................................Holographic grating
Mechanicals.......................................................Internal mechanical shutter for automatic dark signal correction
Light Sources................................................... Deuterium & Tungsten lamp with optical feedback for improved stability
Display Modes ................................................ Absorption, % Transmittance, % Reflectance and Intensity
Storage..............................................................Disk or hard drive in .SIS, .XLS, and .TXT formats
Analysis Packages............................................Quantitative, Time Acquisition, Kinetics, Colorimetry.