190 - 1100nm Double Beam UV Visible Spectrophotometer For Basic Absorbance Measurement
USP-1901A Double beam UV-visible spectrophotometer
Product introduction
USP-1901A Double beam UV-visible spectrophotometer is used for basic absorbance measurement, quantitative and qualitative analysis, DNA and kinetic analysis, etc.
Instrument features
Adopt low stray light and high-resolution optical path structure monochromator, which has good stability, reproducibility and accurate measurement readings.
The variable slits can be set to 0.1/0.2/0.5/2/4/5nm to meet the requirements of different analytical test items for monochromatic bandwidth.
Adopt the latest microprocessor technology, with control functions such as automatic setting of 0%T and 100%T, various methods concentration calculation and data processing functions, and also has special functions to prevent user operation errors, so you can use it without worries.
Instrument Interfaces
Time scan - kinetic measurement is also called time measurement. The user can measure the absorbance or transmittance of the sample solution at intervals (scanning intervals) within a certain scanning time range according to the sample set wavelength point, and can also convert the absorbance into concentration by inputting the concentration factor.
You can set a single wavelength absorbance or transmittance time scan to establish an absorbance (or transmittance)-time curve.
Basic measurement: Input wavelength to test the sample content value at the wavelength, and input sample content to test unknown samples.
Spectral scanning - the sample needs to draw an absorption peak within a certain wavelength, and automatically give the peaks and troughs of unknown samples (qualitative analysis).
Multi-wavelength measurement - refers to the need to measure the absorbance / transmittance /concentration of a sample at multiple wavelengths
Quantitative measurement - To conduct quantitative analysis of samples, multiple standard samples (more than two) can be used to establish a wavelength absorbance-concentration curve, and the concentration of unknown samples can be obtained from this curve.
Enter the known X, B values to measure the content of unknown samples.
DNA protein measurement
Measurement scheme 1: 260nm 280nm
Measurement scheme 2: 260nm 230nm
DNA/protein automatic measurement mainly measures absorbance at 260nm/280nm/230nm/320nm, and obtains DNA and protein concentrations according to the calculation formula.
DNA protein measurement results
Technical Specifications
|
Model |
USP-1901A |
|
Optical system |
1600/CT optical paths, diffraction grating |
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Slit bandwidth |
0.1/0.2/0.5/2/4/5nm |
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Wavelength range |
190~1100nm |
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Wavelength resolution |
0.1nm, Optical focal length 350mm |
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Data display |
Intelligent true color touch LCD display, clear display complete information. (Two-way operation: host + PC workstation) |
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Wavelength accuracy |
±0.1nm(@656.1nmD2,±0.3nm(full wavelength range) |
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Wavelength repeatability |
≤0.05nm(656.1nm) |
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Scan rate |
High, medium and low speed are available, 4100nm/min |
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Stray light |
≤0.01%T(Na1,220nm),≤0.0001%T(NaNO2,360nm); |
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Photometric range |
-4-4.0ABS,-9999-9999C |
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Photometric accuracy |
±0.2%T(0-100%T) ±0.002Abs(0-0.5Abs),±0.3%T(0-100%T) |
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Photometric repeatability |
±0.15%T(0-100%T) ≤0.001Abs(0-0.5Abs),±0.15%T(0-100%T) |
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Baseline flatness |
±0.0005A |
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Baseline drift |
±0.0004ABS/h |
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Photometric noise |
±0.0003A/h(500nm,0A,2nm) |
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Data output |
U disk data output,wifi Email,Bluetooth, PDF,EXECL |
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Light source |
imported light source (deuterium lamp, tungsten lamp) |
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Software |
With GMP audit tracking function |
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Detector |
Imported photomultiplier tube |
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Weight |
25 kg |
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Dimensions |
450*350*200cm |
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