UV/VIS Spectrophotometer S-220
A UV-Vis spectrophotometer is a versatile analytical instrument used to identify and quantify substances by measuring their absorbance of ultraviolet and visible light. It's widely used in various fields for qualitative and quantitative analysis, including determining concentrations, identifying compounds, and assessing purity.
UV/VIS Spectrophotometer S-220
Here's a more detailed breakdown of UV/VIS Spectrophotometer S-220 applications:
1. Quantitative Analysis:
Concentration Determination:
UV-Vis spectrophotometry is frequently used to determine the concentration of solutions, a process known as quantitative analysis.
Beer-Lambert Law:
This method relies on the Beer-Lambert law, which states that the absorbance of a solution is directly proportional to the concentration of the absorbing substance and the path length of the light beam.
Example:
Pharmaceutical companies use it to measure the concentration of active ingredients in drug formulations.
2. Qualitative Analysis:
Compound Identification:
UV-Vis spectroscopy can help identify substances by analyzing their unique absorption spectra.
Purity Assessment:
It can determine the purity of a substance by detecting any impurities that absorb light at different wavelengths.
Example:
Identifying pigments in organic compounds or detecting contaminants in environmental samples.
3. Applications Across Different Fields:
Pharmaceuticals: Analyzing drug formulations, identifying impurities, and monitoring drug stability.
Food and Beverage: Determining the concentration of sugars, proteins, and other components in food and beverages.
Environmental Science: Detecting pollutants in water and air samples, assessing water quality, and analyzing soil samples.
Biochemistry: Analyzing nucleic acids (DNA and RNA), proteins, and other biomolecules.
Forensics: Identifying substances in forensic investigations.
Chemical Research: Studying reaction kinetics, determining reaction mechanisms, and characterizing chemical compounds.
4. Other uses:
Quality Control: Ensuring the quality of products in various industries.
Research and Development: Supporting scientific research in various fields.
Education: Providing a valuable tool for teaching and learning about spectroscopy and analytical chemistry.
UV/VIS Spectrophotometer S-220
UV/VIS Spectrophotometer S-220
UV/VIS Spectrophotometer S-220 provide fast and efficient analysis, allowing researchers to obtain results within a few seconds.
It is used to quantify:
- nucleic acid
- protein content in biological samples
- for quality control in drugs and food industries.
Lead Time: 3-4 Weeks
The S-20 and S-22 are high quality, low cost measurement systems for routine analysis in QC applications, education and training.
UV/VIS Spectrophotometer S-220
| Specification | S-200 Vis | S-220 UV/Vis |
| Wavelength Range: | 320 to 1100nm | 190 to 1000nm |
| Spectral Bandwidth: | 6nm | 5nm |
| Transmittance accuracy: | ±0,5% T (NIST 930 Filter) | ±1% T (NIST 930 Filter) |
| Transmittance repeatability: | 0.2% T | 0.5% T |
| Baseline flatness: | ± 0.002 Abs (330-1090nm) | ± 0.005 Abs (200-990nm) |
| Noise level: | ? 0.001 Abs (500nm) | ? 0.005 Abs (250 nm) |
| Baseline stability: | ? 0.001 Abs/h (500nm) (after 2 hours warm up) | ? 0.005 Abs/h (250nm)(after 2 hours warm up) |
| Stray light: | ? 0.5% T | ? 0.5% T |
| Wavelength controlled variable: | 0.2nm | 0.2nm |
| Wavelength accuracy: | ± 1nm | ± 2nm |
| Wavelength repeatability: | 2400nm/min (0,2 sampling interval without filter) | 300nm/min (0,2 sampling interval without filter) |
| Wavelength scan speed: | (0,2 sampling interval without filter) | (0,2 sampling interval without filter) |
| Wavelength move speed: | to any specified position within 1sec. | to any specified position within 1sec. |
| Absorbance: | -0.3 to 1.999 | -0.3 to 1.999 |
| Transmittance: | 0 to 199.9% | 0 to 199.9% |
| Spectrum Scanning: | Yes | Yes |
| Concentration: | -300 to 1999 | -300 to 1999 |
| Selectable Resolution: | 1, 0.1, 0.01 or 0.001 | 1, 0.1, 0.01 or 0.001 |
| Light source: | Tungsten Halogen lamp | pulsed-Xenon lamp |
| Detector: | Silicon photodiode | Silicon photodiode |
| Display screen: | 4,3 inches colorful touch LCD screen | 4,3 inches colorful touch LCD screen |
| Printer: | specified 80-column thermal printer (series port) | specified 80-column thermal printer (series port) |
| Metering mode: | Single beam | Single beam |
| Memory: | SD card storage | SD card storage |
| Time Scan: | Graphical and calculated concentration value | Graphical and calculated concentration value |
| Analysis: | Absorbance and wavelength of peaks and valleys | Absorbance and wavelength of peaks and valleys |
| GLP: | Real time clock and calendar, Self Diagnosis | Real time clock and calendar, Self Diagnosis |
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