Poduct Range:
Spectroscopy
Summary :
SPECTROSCOPY
Spectroscopy was originally the study of the interaction between radiation and matter as a function of wavelength ë. In fact, historically, spectroscopy referred to the use of visible light dispersed according to its wavelength, e.g. by a prism. Later the concept was expanded greatly to comprise any measurement of a quantity as function of either wavelength or frequency. Thus it also can refer to interactions with particle radiation or to a response to an alternating field or varying frequency í. A further extension of the scope of the definition added energy E as a variable, once the very close relationship E=hí for photons was realized. A plot of the response as a function of wavelength — or more commonly frequency — is referred to as a spectrum. Spectrometry is the measurement of these responses and an instrument which performs such measurements is a spectrometer.
VISIBLE
Many atoms emit or absorb visible light. In order to obtain a fine line spectrum, the atoms must be in a gas phase. This means that the substance has to be vaporized. The spectrum is studied in absorption or emission. Visible absorption spectroscopy is often combined with UV absorption spectroscopy in UV/Vis spectroscopy.
ULTRAVIOLET
All atoms absorb in the Ultraviolet (UV) region because these photons are energetic enough to excite outer electrons. If the frequency is high enough, photo-ionization takes place. UV spectroscopy is also used in quantifying protein and DNA concentration as well as the ratio of protein to DNA concentration in a solution. Several amino acids usually found in protein, such as tryptophan, absorb light in the 280nm range and DNA absorbs light in the 260nm range. For this reason, the ratio of 260/280nm absorbance is a good general indicator of the relative purity of a solution in terms of these two macromolecules. Reasonable estimates of protein or DNA concentration can also be made this way using Beer’s law.
VAIOUS MODULES INCLUDES
Super Aqurius Model: CE3021: Wavelength range of 190-1000nm with 1.8nm band pass
Features
• Performance with convenience
• Absorbance Accuracy
• Sixth screen width viewing
• Ease of Operation
• Accurate Quantification
• Wavelength Scanning
AQUARIUS
CE7400: <2nm pharma compliant optical band pass with wavelength range of 190-1100nm
CE7400S: 1nm optical band pass with wavelength range of 190-1100nm
CE7500: 0.5, 1, 2 and 4nm variable band pass with wavelength range of 190-1100nm
CE7200: <2nm optical band pass with wavelength range of 190-900nm
Feature
• Variable or Fixed Bandwidth
• Double beam optical System
• Scans viewed by scrolling
• Scan storage
• Re-processing
• Multi User convenience
• Reflectance and Gel Scanning
• Data Stream
• PC data Manipulation
• Band Quantification
SUPER AQUARIUS
CE9200: 1.8nm Optical Band pass with wavelength range of 190-800nm
CE9500: Variable optical Band pass 0.5, 1, 2 and 4nm with wavelength range of 190-900nm
Features
• Variable optical band width
• Top Performance Optical System
• Turbid Sampling Optics
• Integral Data Storage
• Assay Programming
• Dynamic 8scan recall
• Method Stoarge-100
• Spectral Storage – 100
• Curve Storage – 100
• Code Protected storage
• Validation Software
Other Dedicated Application equipment
AquaQuest – 190-1000nm with 4nm Bandwidth used for Water Analysis
BioQuest – 190-1000nm with 4nm Bandwidth used for Bio Analysis, Scanning
BioAquarius – 190-900 nm with 1.8nm Band width used for fully programmed Bioanalysis
Dietquest - 190-1000nm with 18. nm
325-1000nm with 4nm
190-900nm with 1.8nm used for Food & Beverage Analysis.
GenQuest - 190-370, 595 & 600 nm with 4nm Band Width used for Molecular Biology
PharmaQuest: 190-800nm with 1.8nm Bandwidth used for Dissolution Tests
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