Ultraviolet-visible Spectrophotometer
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Note: this service is for Research Use Only and Not intended for clinical use.
Ultraviolet-visible (UV-Vis) spectrophotometer is one of the most commonly used analytical instruments in the fields of health, food safety, environmental protection, life sciences, pharmaceutical chemistry, import and export inspection and quarantine, agriculture, chemical industry and so on. The UV-Vis absorption spectrum of molecules is the absorption spectrum produced by the electron energy level transition after some groups in the molecule absorb the UV-Vis radiation. Because each substance has its own different molecular, atomic and molecular spatial structure, its absorption of light energy will not be the same. Therefore, each substance has its own unique, fixed absorption spectrum curve. The content of the substance can be judged or determined according to the absorbance at some characteristic wavelengths of the absorption spectrum. The Evolution 300 spectrophotometer incorporates a high-performance optical design, versatile software packages, and the highest quality accessories for the most demanding applications.
Specifications
| Specifications - Evolution 300 Spectrophotometer | |
|---|---|
| Accuracy | ±0.004 A at 1 A, ±0.004 A at 2 A, ±0.006 A at 3 AÅ |
| Accuracy (photometry) | ±0.004 A at 1 A, ±0.004 A at 2 A, ±0.006 A at 3 A |
| Baseline flatness | ±0.0015 A (200-800 nm), 2.0 nm SBW, smoothed |
| Beam geometry | Dual-Beam; Quartz Coated |
| Detector type | Dual Matched Silicon Photodiodes |
| Drift | <0.0005 Abs/hr, 500 nm, 2.0 nm SBW, 2 hr warm-up |
| Electrical requirements | 100/240 V, 50/60 Hz |
| Lamp | Xenon Flash Lamp |
| Minimum data interval | 0.5 nm |
| Monochromator | Modified Ebert |
| Noise | Photometric: 0 A: <0.00018 A; 1A: <0.00022 A; 2 A: <0.00050 A; 500 nm, 2.0 nm SBW, RMS |
| Scanning speed | 1 - 3,800 nm/min |
| Spectral bandwidth | Variable 0.5; 1.0; 1.5; 2.0; 4.0 nm |
| Stray light | 198 nm: 2.9 A KCl; 220 nm: 4.2 A NaI; 340 nm: 4.3 A NaNO2 |
| Wavelength accuracy | ±0.20 nm (546.11 nm Hg emission line); ±0.3 nm for 190 - 900 nm |
| Wavelength data interval | 10, 5, 2, 1, 0.5, 0.2, 0.1, 0.05 nm |
| Wavelength range | 190 to 1100 nm |
| Wavelength repeatability | Standard deviation of 10 measurements <0.05 nm |
Features
Excellent performance over the full wavelength range
Long life xenon lamp
Without instrument preheating
Five variable spectral bandwidths
Acquisition speed up to 50 data points per second
Applications
Do not know how to place an order, please refer to the flow chart shown below.
Submit quotation request |
A technical manager will contact you within 24 hours |
You will review and approve the final price and place an order |
Confirm with you and make the payment |
Instruct you to ship your samples and form |
Analytic report delivery |
