LT-2900 MICROPROCESSOR UV-VIS SPECTROPHOTOMETER(Double Beam)
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Labtronics Model LT 2800 is advanced DOUBLE BEAM UV-VIS Spectrophotometer with more accuracy and flexible requirements. The two detectors are used to measure sample and reference respectively and simultaneously for optimizing measurement accuracy. It has vide wavelength range safisfying requirement of various filed such as biochemical research and industry, pharmaceuticals analysis and production, education, environment protection, food industry etc.

Technical Specifications
Wavelength Range 190-1100 nm
Mode Basic/Quantitative/Wavelength Scan/DNA Protien Test/Kinetics
Scanning Speed Fast / Medium / Slow
Wavelength Accuracy +0.1 nm
Bandwidth 1 nm
Wavelength Reproducibility 0.1 nm
Photometric Display Range 0-200 % T, -0.3 - 3.0 A, 0-9999 C
Photometric Accuracy + 0.3 % T
Photometric Repeatability + 0.2 % T
Stability 0.001A/h @ 500 nm
Baseline Flatness + 0.001 A
Noise +0.001A
Stray Light < 0.05% T @ 220nm, 360 nm)
Data Output Port USB
Printer Port Parallel Port
Display Graphic LCD (320*240 Dots)
Lamps Deuterium Lamp & Tungsten Halogen Lamp
Detector Silicon Photodiode
Dimensions(L*W*H) 630 x 430 x 206 mm
Net Weight 26 Kg
Accessories
Glass Cells 4 No.
Quartz Cells 4 Nos.
Fuse 2 Nos.
Instrument Cover 1 No.
Software CD 1 No.
USB Cable 1 No.
Operation Manual 1 No.
Basic Mode
To measure the Absorbance and Transmittance
Quantitative
1.   Coefficient Method
2.   Standard Curve
Up to 10 standard samples may be used to establish a curve.
Four methods for fitting a curve through the calibration points:
Linear fit, Linear fit through zero, Square fit and cubic fit.
DNA/Protein Test
Concentration and DNA purity and easily calculated:
Absorbance ratios 260 nm / 280 nm with optional subtracted absorbance at 320 nm. DNA concentration=62.9xA260-36.0 x A2B0 Protein concentration=1552xA260-757xA280.
Wavelength Scan

  • The wavelength scan intervals are 0.1, 0.2, 0.5, 1, 2, 5 nm

  • High, Medium and Low scan speeds are available. They vary from 100 to 3600 nm/min.

  • Wavelengths are scanned from high to low so that the instrument waits at high WL and it minimize the degradation of UV sensitive samples.
Kinetics
This mode may be used for time course scanning or reaction rate calculations. Abs vs time graphs is displayed on the screen in real time.

Wait time and measurement time up to 12 hours may be entered with time intervals of 0.5,1,2,5,10,30 seconds and 1 min. Post-run manipulation includes re-scaling, curve tracking and selection of the part of the curve required for the rate calculation. Rate is calculated using a linear regression algorithm before multiplying by the entered factor.

LT-2900 MICROPROCESSOR UV-VIS SPECTROPHOTOMETER(Double Beam)
laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments

The perfectly designed double beam LT-2900 UV/VIS SPECTROPHOTOMETER successfully realizes high accuracy and reliability measurement to meet various application requirements. It can be used extensively for qualitative and quantitative analysis in such fields as biochemical research and industry, pharmaceutical analysis and production, education, environmental protection, food industry, clinical examination, sanitation and antiepidemic etc.

Salient Features
  • Wide wavelength range, satisfying requirements of various fields
  • Fully automated design, realizing the simplest measurement & satisfying the requirements of pharmacopoeia.
  • Maximum of 9 wavelenths & 7 samples scan be measured at one time.
  • Automatic change-over between W lamp & D 2 lamp
  • Optimized optics and large scale integrated circuits design, light source and receiver from world famous measurement all add up to high performance and reliability
  • Rich measurement methods:wavelength scan, time scan, multi-wavelenth determination, multi-order derivative determination, double-wavelength method and triple-wavelength method etc., meet different measurement requirement.
  • Automatic 10mm 8-cell holder
  • Data output can be obtained via a printer port and a RS-232 interface
  • Parameters and data can be saved for user's convenience
  • PC controlled measurement can be achieved for more accurate and flexible requirement
    • Technical Specifications
    Wavelength Range 190-1100 nm
    Spectral Bandwidth 1 nm
    Working Mode T,A,C,E
    Optical System Double beam
    Scanning Speed Fast / Medium / Slow
    Photometric Range -0.3 - 3.5 A, 0 to 220 %T
    Wavelength Accuracy +0.3 nm
    Wavelength Reproducibility < 0.10 nm
    Photometric Accuracy + 0.3% T (0-100% T)
    +0.002 A (0-0.1 A)
    Photometric Reproducibility < 0.15 % T
    Stray Light < 0.1% T (Nal. 220nm, NaNO2 340 nm)
    Baseline Flatness + 0.002 A
    Stability < 0.001A/h (at 500 nm, after warming up)
    Noise +0.001A (at 500 nm, after warming up)
    Detector Dual Silicon Photodiode
    Display 6 inches high light blue LCD
    Power AC:220V + 10%, 50 Hz.
    Dimensions 630 x 470 x 210 mm
    Weight 26 Kg
    Accessories
    Glass Cells 16 No.
    Quartz Cells 4 Nos.
    Fuse 3 Nos.
    Instrument Cover 1 No.
    Software CD 1 No.
    RS 232 Cable 1 No.
    Operation Manual 1 No.
    LT-29 MICROPROCESSOR UV-VIS SPECTROPHOTOMETER

    A versatile, Rugged, Easy to operate and Accurate Instrument to determine Absorbance, % Transmission and Concentration of Liquids


    laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments     		laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments Salient Features
  • Cover 195 to 1000nm
  • 4 Position Cuvette Holder
  • RS-232C Computer Interface
  • High wavelength Precision
  • Compact & Good Looking Shape
  • Highly Accurate & Stable
    • Applications

    UV-visible spectrophotometer, an analytical instrument commonly used in physico-chemical laboratories to make quantitaive and qualitative analysis of specimen materials in the ultraviolet, visible spectral range finds much scope for its service in such fields as medicine, clinical examination, biochemistry, petro-chemical industry. Bio technology, Environmental protection and quality control. The technique has enjoyed a molecular biology and the need to quantify DNA and proteins. Here, the simplicity of use, the non-destructive nature of the sampling and the cost effectiveness of the measurement has proved very beneficial in the modern laboratory.

    Photometric Range % T:0 to 100%, Abs.:0 to 1.999
    Conc.:0 to 1999, K-Factor:0 to 1999
    Accuracy +0.005 Abs at 1.0 Abs
    +0.010 Abs at 1.0 Abs
    Stray Light Less thn 0.1% Abs at 320 nm
    Readability + 1 Count
    Data Readout Single Line LCD display
    Key Board 4 Keys, Soft touch membrane type
    Painter Interface Printer interface for any printer
    Serial Interface RS 232C interface
    Light Source a) Tungsten Halogen Lamp
    b) Deuterium Lamp (D2)
    Detector Wide range Silicon Photodiode
    Optics Complete mirror optics with resolution 1200 grooves/mm grating
    Sample Holder 4 position adjustable sample holder
    Power 230V + 10%, 50 Hz. AC
    Dimensions 420 x 350 x 240 mm (lxbxh) Approx.
    Weight 10 Kg (Approx.)
    Technical Specifications
    Wavelength 195 to 1000nm
    Spectral Bandwidth 2 nm
    Accuracy + 0.5 nm
    Repeatability + 0.3 nm
    Resolution 0.1 nm
    DIGITAL SPECTROPHOTOMETER

    A versatile, Rugged, Easy to operate and Accurate Instrument to determine Absorbance, % Transmission and Concentration of Liquids


    laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments     		laboratory equipment supplier, scientific equipment, scientific instruments, physics laboratory instruments Salient Features
  • Range 340 to 960 nm
  • Direct Concentration Facility
  • Latest Solid State IC Technology
  • Digital Display
  • Highly Stable and Accurate

    • Digital Spectrophotometer Model LT-30/LT-31 is an economical, reliable, rugged and most accurate system for spectrophotometric analysis of any concnetration. It operates at a wavelenght range of 340 to 960 nm. Its output is available on 3 1/2 digit LED display in terms of Optical Density, Percentage Transmission and Concentration.

    Highly advanced solid state I.C. Technology has made its circuit very stable an accurate. Desired wavelenght can be selected by adjusting the disc at the top panel.

    Model LT-30 LT-31
    Range 340 to 960 nm 340 to 960 nm
    Resolution 0.1%T, 0.001 Abs 0.1%T, 0.001 Abs
    Output %T: 0 t0 100%, Abs; 0 to 1.999, Conc; 0 to 1999 %T: 0 t0 100%, Abs; 0 to 1.999, Conc; 0 to 1999
    Detector Silicon Photodiode Silicon Photodiode
    Light Source 6V, 1 Amp. Vertical Tungsten Halogen Lamp 6V, 1 Amp. Vertical Tungsten Halogen Lamp
    Monochromater 600 Lines / mm grating 600 Lines / mm grating
    Path Length 10 mm 10 mm
    Spectral Bandwidth 10 mm 10 mm
    Wave Length Resolution 5 nm 1 nm
    Wave Length Accuracy 2.5 nm 1 nm
    Repeatability +2 nm +1 nm
    Display 3 1/2 digit LED Display 3 1/2 digit LED Dual Display
    Opeating Temp. 5 to 45oC 5 to 45oC
    Power 230V+ 10% AC 50 Hz 230V+ 10% AC 50 Hz
    Dimensions 490 x 300 x 165 mm 490 x 300 x 165 mm
    Weight 8.5 kg (approx.) 8.5 kg (approx.)
    Accessories Test Tubes(12mm dia) 10 nos
    Product Range Photo Colorimeters, Spectrophotometers, Digital pH Meters, Conductivity/TDS Meters, Turbidity Meters, Digital D.O. Meters, Water & Soil Analysis Kits