Vis Spectrophotometer
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NANBEI INSTRUMENTS Spectrophotometer
一、Chapter 1 Principles, uses and characteristics
1.Principles
Principle Material is selective for the absorption of light, under the irradiation of light, to produce the absorption effect. Different substances have different absorption spectra. When a monochromatic light passes through the solution, its energy will be weakened due to its absorption, and the degree of light energy weakening and the concentration of the matter will show a certain proportion. This series of instruments performs a qualitative and quantitative analysis of the samples based on the colorimetric principle, which complies with the Lambert-Beal law in a certain range of concentrations:
A=lg1/T=kCL T=I/I0
among: A: absorbance
T: transmissivity
I: Through the light transmission intensity
I0: the incident light intensity
K: Absorption coefficient of the sample
C: Concentration of the samples
L: Length of the light passing through the sample。
2.Use
This instrument can make qualitative and quantitative analysis of sample substances in the ultraviolet and visible spectrum areas, and can be widely used in medicine and health, clinical testing, biochemistry, petrochemical, environmental protection testing, food hygiene and quality control and other departments, and can be used as the teaching demonstration and experimental instrument of relevant courses in colleges and universities。
3.Features
Highlight the large-screen LED display.
High-precision subdivision drive, wavelength automatic adjustment.
0%T auto-zero.
The optimized self-quasi optical path ensures the ultra-low stray light.
Import long-life light source and simple light source replacement operation。Model Visible type
optical system Single beam , Littrow，Grating 1200 Line/mm
Spectral Bandpass 4nm
Wavelength Range 320-1100nm
Wavelength Accuracy ±2nm
Wavelength Repeatability 0.5nm
Wavelength Resolution 0.5nm Stray Light ≤0.2%T@360nm
Photometric Range 0-200%T，-0.3-3.0A，0-9999C（0-9999F）
Photometric Accuracy ±0.5%T
Photometric Repeatability 0.2%T
Show LED highlight LCD display
Size(mm) 460×310×190
data output USB interface
Weight 7.4kg
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Portable Spectrophotometer
Brand:NANBEI
Model:NBDS-700 Portable Spectrophotometer
Application:Test result is accurate and reliable to ensure the consistency of the measurement data of multiple devices, which can be used for color matching and accurate color communication.
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Tabletop visible spectrophotometer
Brand：NANBEI
Model：NV-T5AP
1. Easy to use The 4.3-inch color touch screen technology and keyboard parallel dual input methods make the operation easier. Navigational menu design makes testing easier and easier to use. Built-in photometric measurement, quantitative measurement, qualitative measurement, time measurement, DNA protein measurement, multi-wavelength measurement, GLP special program; U disk data export, USB connected to computer 2. A variety of accessories are available 5-10cm optical path cuvette holder, automatic sample holder, peristaltic pump auto sampler, water area constant temperature sample holder, Peltier constant temperature sample holder and other accessories.
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Digital visible spectrophotometer
Brand：NANBEI
Model：NV-T5
1. Easy to use: The 4.3-inch color touch screen technology and keyboard parallel dual input mode make the operation easier. The navigation menu design makes testing easier and easier to use. Built-in photometric measurement, quantitative measurement, qualitative measurement, time measurement, DNA protein measurement, multi-wavelength measurement, GLP special program; U disk data export, USB connected to computer 2. A variety of accessories to choose from: 5-10cm light path test tube rack, automatic sample rack, peristaltic pump autosampler, water area constant temperature sample holder, Peltier constant temperature sample holder and other accessories.