Uv Vis Double Beam Spectrophotometer-LMSP-UV1900
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The innovative optical layout and state of art mono- chromator with high grade blazed holographic grating ensure accuracy. Its integrated design assures long term stability and durability
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The precisely aligned detector and quality deuterium and halogen lamps enhance the precision across the UV / Vis spectrum starting from 190 nm and into the near-infrared 1100nm
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The two detectors are used to measure sample and reference respectively and simultaneously for optimizing measurement accuracy
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Lamp Selection enables conserving the life of D2 & Tungsten lamps. Real time clock for date & time stamping of results
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Big LCD display. (320 x 240 Dots Matrix)
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Basic Mode, Quantitative, Kinetics, Multi - Wavelength, Wavelength Scan, DNA / Protein Test &Utility
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FUNCTIONS OF SOFTWARE
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BASIC MODE
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| To measure the Absorbance and Transmittance |
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QUANTITATIVE
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1. Coefficient Method
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2. Standard Method curve.
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Up to 10 standard samples may be used to establish a curve. Four methods to fitting a curve through the calibration points: Linear fit through zero, square fit & cubic fit.
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WAVELENGTH SCAN
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1. The wavelength scan intervals are 0.1, 0.2, 0.5, 1, 2 & 5 nm
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2. Fast, Medium & Slow Scan speeds are available. They very from100 to 1800 nm/min
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3. Wavelength are scanned from high to low so that the instrument waits at high Wavelength and minimizes the degradation of UV sensitive samples
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MULTI-WAVELENGTH
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Up to 32 wavelengths can be selected and multiple samples can be measured
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KINETICS
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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
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Wait time and measurement time up to 12 hours may be entered with time intervals of 0.5,1,2,5,10,30 seconds & 1min. 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
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DNA/PROTEIN TEST
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| Concentration and DNA purity are quickly and easily calculated: Absorbance ratio s 260nm/280nm with optional subtracted absorbance at 320nm. |
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DNA concentration= 62.9x A260-36.0x A280
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Protein concentration=1552xA260-757.3xA280
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UTILITY
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Has following functions
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WL Reset, Printer, Lamp, Clock, Dark Current, Accu. Validity, WL Validity Connect to PC, Beeper On/Off & System Base Line
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| Microprocessor Double Beam |
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UV Visible Spectrophotometer
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Model
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LMSP-UV1900
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LMSP-UV1900A
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LMSP-UV1900S
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LMSP-UV1900AS
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Make
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LABMAN
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Cell Holder
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10mm single cuvette Holder
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10mm 8cell Programable Holder
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10mm single cuvette Holde
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10mm 8 cell Programable Holder
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Bandwidth
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1nm
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0.5 /1.0/2.0/4.0 nm Variable
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Optical System
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Double Beam, Grating 1200 lines / mm
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Wavelength Range
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190 - 1100nm
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Wavelength Accuracy
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+ 0.3nm
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Wavelength Repeatability
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+ 0.2nm
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Scanning Speed
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Fast, Medium & Low
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Photometric Accuracy
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+0.3%T
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Photometric Repeatability
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+ 0.2%T
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Photometric Range
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-0.3-3A,0-200%T,0-9999C
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Stability
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+ 0.001A/h @ 500nm
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Baseline Flatness & Noise
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+0.001A
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Stray Light
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<0.05%T @ 220nm,360nm
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Data Output Port
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USB
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Printer Port
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Parallel Port
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Display
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320 x 240 Graphic LCD
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Lamps
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Deuterium Lamp & Tungsten Halogen Lamp
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Detector
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Silicon Photodiode
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Power Supply
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AC 220V/50Hz
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Dimension
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625 x 430 x 206 mm
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Weight
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30 kg
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INSTRUMENT INCLUDES: 4 Nos 10mm Glass cuvettes, one pair of quartz cuvette, Manual & Dust Covers.
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