University Science Instrumentation Centre (USIC)
Bharathidasan University
Tiruchirappalli - 620 024, Tamil Nadu, India

UV VIS- NIR SPECTROPHOTOMETER


Working Principle

The UV VIS- NIR Spectrophotometer is an instrument ideally suited for chemistry and material science applications, busy academic and industrial laboratories that perform measurement of liquids, gels, and solid materials and need flexibility of sampling along with high measurement performance. It is designed to provide the maximum sampling flexibility for tough samples in chemistry, biochemistry and materials science.Adouble-beam, double-monochromator designof Lambda 750 provides the highest possible stability coupled with the highest accuracy and lowest stray-light performance. Extension of the measurement range into the Near-IR region of the spectrum provides richer and complementary spectral information for many compounds and materials.A choice of cells and sample holders allows virtually any liquid sample to be measured. Options include long-path cells, test-tube holders, flow through cells and micro and semi-micro cells.Powder analysis is easily accomplished using the 60 mm integrating sphere in reflectance measurement mode -raw materials testing, organic and inorganic chemicals, geological and powdered polymers and coatings. Specular, diffuse and total reflectance measurements using the 60 mm integrating sphere, allow rapid analysis of continuous solids such as glass, textiles, polymers and coated surfaces.

Spectrophotometer

Specific Features of the UV VIS- NIR Spectrophotometer

  •   True double-beam, double-monochromator design provides the highest possible stability coupled with the highest accuracy and lowest stray-light performance. This design has been proven by thousands of laboratories globally, running a wide range of samples.
  •   Extension of the measurement range into the Near-IR region of the spectrum provides richer and complementary spectral information for many compounds and materials.
  •   Unlike some competitive floor-mounted instruments, the LAMBDA 750 and 750S are designed to fit onto a standard bench-top, optimizing the use of space in your lab.
  •   Inexpensive to run – for example the twin deuterium and tungsten-halogen source lamps are pre-aligned for quick and easy replacement, and do not require a service visit.
  •   60 mm moveable Spectralon® collection sphere Ruled optical bench with reflectors, lenses, diaphragms and other optical elements to allow for various user specified measurement configurations Long path optics Variable angle transmittance Specular reflectance.


Features

  •   Water Raman signal-to-noise ratio: 10,000:1 (FSD method)
  •   Photon Counting for Ultimate Sensitivity
  •   Fast Scanning capability - up to 80 nm/second
  •   Phosphorimeter accessory for long-lived luminescence determinations
  •   Time-correlated single-photon counting (TCSPC) accessory for lifetime determinations
  •   Measure lifetimes from 25ps with laser diodes and PPD detection module
  •   Up to 1,000 TCSPC measurements per second – ideal for kinetics studies
  •   Monochromator wavelength selection
  •   Measurement modes
  •   Lifetime – measure 25ps to 1s
  •   Kinetic TCSPC – 1 to 10 000 decays measured sequentially in 1ms to 1min per decay
  •   Anisotropy – reconvolution analysis to resolve shorter rotational correlation times
  •   Time-Resolved Emission Spectra (TRES) – Collect up to 100 wavelength dependent decays
  •   Steady-State

Technical Specifications

Model Name LAMBDA 750
Detectors High sensitivity R928 Photomultiplier (PMT) for UV/Vis and Peltier cooled PBS detector for NIR
Wavelength Range 190 - 3300 nm
Wavelength Resolution 0.17 - 5.0 nm UV/ViS 0.2 - 20.0 nm in NIR
Light Source Tungsten-halogen and Deuterium
Operating Software in Windows PerkinElmer UV Winlab
Integrating sphere size 
 (for Reflectance measurement)
60 mm
Wavelength Scan Operation Full or partial range spectral characterization
Wavelength program Operation Rapid measurement at single or multiple discrete wavelengths
Quant and Scanning Quant Operation Quantitative Analysis on discrete peaks or full spectra
Time-Drive Operation Kinetics, including general and enzyme kinetics
Ideal Samples Transmission of liquids, turbid liquids and solids
Typical Application Areas Inorganic and organic chemistry Quality Control of raw materials and final products Biological Sciences - DNA, Protein, Blood Academia - teaching experiments Materials Science


Details of UV VIS- NIR SPECTROPHOTOMETER

BrandLAMBDA 750
ModelLAMBDA 750
Sponsored AgencyDST- PURSE programme (Phase -2) (Sanction Order No- SR/PURSE Phase 2/16 (C)/2017)

Tariff Details


Name of the Instrument BDU Departments Affiliated Colleges Other Universities / Institutes Industries / Non-academics
UV VIS  100  100  200  500

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