USP-1901 series Double beam UV-visible spectrophotometer,190-1100 nm, 0.3/1/2/4/5nm

USP-1901 series Double beam UV-visible spectrophotometer can be used for scientific research in physics, chemistry, medicine, biology, pharmacology, geology and other disciplines. It is one of the important quality control instruments widely used in chemical industry, pharmaceuticals, metallurgy, light industry, materials, environmental protection, medical testing and other industries and analytical industries.

Photometer mode: detect the absorbance and transmittance of samples at a fixed wavelength;
Spectral scanning: analyze the maximum absorption peak height and maximum absorption peak position of unknown samples (blind samples);

Instrument features

1. Uniquely designed optical system, 1600 lines/mm high-performance long-life holographic grating, and imported high-performance receiver ensure that the instrument has excellent performance indicators.

2. Imported environmentally friendly deuterium lamp system, effectively reducing the inhalation of ozone;

3. Advanced control system, new generation true color touch LCD display, can monitor the lighting time of deuterium lamp and tungsten lamp in real time;

4. Socket-type deuterium lamp and tungsten lamp design, can save you the trouble of optical debugging after changing the lamp;

5. Large sample chamber, can accommodate 5-100mm cuvettes of various specifications;

6. Can directly send test results, print spectra and experimental data;

7. GLP self-identification function, can detect the wavelength accuracy and photometric accuracy of the instrument at any time according to needs, and issue a test report;

8. Powerful storage function, can save various types of data and spectra; memory 1T;

9. Standard GMP audit tracking workstation professional scanning software can realize a variety of powerful functions including photometric measurement, quantitative analysis (including standard curve function), full wavelength spectrum scanning, kinetic (time) scanning, multi-wavelength testing, etc., fully meet the diverse requirements of testing and unlimited data storage.

Technical Specifications

Model	USP-1901P	USP-1901C
Optical system	1600 lines/mm CT type optical path Enhanced double beam UV-visible spectrophotometer
Slit bandwidth	0.3/1/2/4/5nm (5 steps automatically adjustable)
Wavelength range	190-1100 nm
Wavelength resolution	0.1 nm, Optical focal length 350mm
Data display	8-inch new generation true color touch LCD display (two-way operation: host + PC workstation)	320*240 LCD display (two-way operation: host + PC workstation)
Wavelength accuracy	±0.1nm (@656.1nmD2, ±0.3nm (full wavelength range)) Actual measurement ±0.2nm
Wavelength repeatability	≤0.2nm
Scanning speed	High, medium and low three gears optional 4100nm/min
Stray light	≤0.02%T (220nm Nal; 360nm NaNO2)
Photometric range	0-200%T, -0.301-6.0A, -9999-9999C
Photometric accuracy	±0.002A (0-0.5A), ±0.3%T (0-100%T)
Photometric repeatability	±0.001A (0-0.5A), ±0.15%T (0-100%T)
Baseline flatness	±0.0005A
Baseline drift	±0.003A/h
Photometric noise	±0.0003A (500nm, 0A, 2nm spectral bandwidth)
Data output	U disk data output, PDF. excel.
Language	English
Power supply	AC 90-240V 150W
Detector	Imported photomultiplier tube
Weight	25 kg
Dimensions	600500210mm

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

USP-1901 series Double beam UV-visible spectrophotometer,190-1100 nm, 0.3/1/2/4/5nm