Microprocessor UV-Vis Spectrophotometer(Double Beam)

quantum — Wed, 08 Mar 2017 09:03:10 +0000

Technical Specifications

Display	Graphic LCD (320*240 Dots)
Lamps	Deuterium Lamp & Tungsten Halogen Lamp
Detector	Silicon Photodiode
*Dimensions(LWH)*	630 x 430 x 206 mm
Net Weight	26 Kg

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

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

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

3. 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.

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Microprocessor UV-VIS Spectrophotometer(Double Beam)

quantum — Wed, 08 Mar 2017 09:01:43 +0000

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.

The post Microprocessor UV-VIS Spectrophotometer(Double Beam) appeared first on Quantum Scientific.

Microprocessor UV-VIS Spectrophotometer(Double Beam) – Quantum Scientific

Microprocessor UV-Vis Spectrophotometer(Double Beam)

Microprocessor UV-VIS Spectrophotometer(Double Beam)