OPTIZEN Alpha is a spectrophotometer that uses a double-beam method.OPTIZEN Alpha can measure the transmittance or absorbance at each wavelength of a sample in ultraviolet and visible light bands to determine the quantitative characteristics such as concentration and purity.
OPTIZEN Alpha, which can be used widely from general analytical experiments to professional research fields, guarantees accurate measurement and excellent reproducibility and provides reliable results in various fields such as the environment, biotechnology, and chemistry.
The previous single beam type spectrophotometer has a weak point of error occurrence in measuring a sample, because of the movement of a light source by time lag in measuring the strength of between a reference light and a light from sample. To solve the problem, OPTIZEN Alpha was designed as a double-beam type spectrophotometer. The system utilizes an additional reference beam to improve the measurement performance by compensating the intensity fluctuation of its light source.
Photometrics System | Double-beam type |
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Monochromator | Czerny-Turner type with 1200 lines/nm blazed grating |
Light Source | Tungsten Halogen Lamp & Deuterium Lamp |
Lamp interchange Wavelength | 340~410 nm (Default 370 nm) |
Detector | Silicon Photodiodes |
Spectral Bandwidth | 1 nm (190 to 1100 nm) |
Wavelength Range | 190 to 1100 nm |
Wavelength Setting | 0.05 nm |
Wavelength Accuracy | ±0.3 nm (For entire range) ±0.1 nm (656.1 nm) |
Wavelength Repeatability | <± 0.1 nm |
Slew Rate | About 13,500 nm/min |
Scan Speed | max 6,000 nm/min |
Photometric Range | Absorbance : -4 to 4 Abs Transmittance : 0 % to 400 % |
Photometric Accuracy | ±0.002 Abs at 0.5 Abs ±0.004 Abs at 1.0 Abs ±0.006Abs at 2.0Abs |
Photometric repeatability | ± 0.0002 at 0.5 Abs ± 0.0006 at 1.0 Abs ± 0.001 at 2.0 Abs |
Baseline stability | < 0.0003 Abs/h |
Baseline flatness | <± 0.0005 Abs |
Stray light | < 1.0 % at 198 nm (KCl) < 0.02 % at 220 nm (NaI) < 0.02 % at 340 nm (NaNO₂) |
Standard cell Holder | Autometic Rotary type 8-position Multi-Cell Holder |
Operating system(OS) | Windows 10 (Embedded PC); |
Display | 8-inch color LCD with touch screen |
Power Requirement | 100~240 V; 50~60 Hz |
Dimensions(WxDxH) | 520(W)x500(D)x200(H) |
Weight(kg) | 14 kg |
PC Software | (optional) OPTIZEN View for Windows® (optional) OPTIZEN Secure™ |