UV-VIS Spectrophotometer- Double Beam SL 324 D
Is advanced DOUBEL BEAM UV-VIS Spectrophotometer with more accuracy and flexible requirements. The two detectors are used to measure sample and reference respectively and simultaneously for optimizing measurement accuracy. It has vide wavelength range satisfying requirement of various fieds, Such as biochemical research and industry, pharmaceuticals analysis and production, education, environment protection, food industry etc.
Technical Specifications
| Optical System |
Double Beam (1200 Lines/mm Grating) |
| Wavelength Range |
190-1100nm |
| Mode |
Basic/Quantitative/Wavelength Scan/ DNA Protein Test/Kinetics |
| Scanning Speed |
Fast/Medium/Low |
| Band Width |
1 nm |
| Wavelength Accurach |
± 0.1 nm |
| Wavelength Repeatability |
0.1 nm |
| Photometric Accuracy |
± 0.3%T |
| Photometric Display Accuracy |
0.2%T |
| Photometric Display Range |
0-200% T, -0.3-3.0 A, 0-9999 C |
| Stability |
0-001 A/h @ 500 nm |
| Baseline Flatness |
±0.001 A |
| Noise |
±0.001 A |
| Stray Light |
-< 0.05 % T @ 220 nm, 360 nm |
| Data Output Port |
USB |
| Printer Port |
Parallel Port |
| Display |
Graphic LCD (320 x 240 Dots) |
| Lamps |
Deuterium Lamp & Tungsten Halogen Lamp |
| Detector |
Silicon Photodiodes |
| Dimension (L x W x H) |
625 x 430 x 206 mm |
| Net Weight |
26kg |
Accessories
Glass Cells: 4 No. Quartz Cells: 4 Nos. Fuse: 2 Nos. Instrument Cover: 1 No. Software CD: 1 No. USB Cable: 1 No. Operational Manual: 1 No.
Basic Mode
To measure the Absorbance and Transmittance
Quantitative
Coefficient Method Standard CurveUp to 10 standard samples may be used to establish a curve.Four methods for fitting a cuver through the calibration paintsLinear fit, Linear fit through zero, Square fit and cubic fit.
DNA / Protein Test
Concentration and DNA purity are quickly and easily calculated: Absorbance ratios 260 nm / 280 nm with optional subtracted absorbance at 320 nm. DNA concentration=62.9 x A260-36.0 x A280 Protein concentration=1552 x A260 - 757.3 x A280
Wavelength Scan
The wavelength scan intervals are 0.1, 0.2, 0.5, 1, 2, 5 nm Hi, Medium and Low scan speeds are availabe. They vary from100 to 3600 nm / min. Wavelengths are scanned from high to low so that the instrument waits at high WL. and it minimizes the degradation of UV sensitive samples.
Kinetics
This mode may be used for time course scanning or reaction rate calculations. Abs vs time graphs is displayed on the scren in real time. Wait time and measurement time up to 12 hours may be entered with time intervals of 0.5, 1, 2, 5, 10, 30 seconds and 1 min. Post-run manipulation includes re-scaling, curve tracking and selection of the part of the curve required for the rate calculation. Rate is calculated using a linear regression algorithm before multiplying by the entered factor.