Appendix XIII: UV-vis
Additional information from the UV-visible section of the Pittcon Review article.
Manufacturer: EssentOptics Ltd
Product name: PHOTON RT
Scanning spectrophotometer.
New this year: Expanded spectral range to 190-4000 nm, new feature: average polarization measurement, redesigned interface.
Features: designed specifically to run wide range of optical measurements of thin film coatings – transmittance, reflectance, polarizationdependent measurements in wide angular and spectral range. Average polarization (S+P)/2, optical density 0-4D, etc. All measurements are done automatically and without any additional external fixtures or accessories.
Used for: Lab, Process analysis
Measurement Mode: Transmittance, Reflectance, Angular dependent measurements, Polarization dependent measurements, Optical density, Integral values
Suggested applications: Optical measurement of parts with coatings – all types of optical filters, mirrors, AR coatings, cube polarizers etc in UV, VIS and NIR range (190-4000 nm)
Primary benefits: easy and convenient way to measure optics with coatings, focused specifically on optics.
Unique features: All measurement features are built-in, designed just for optics so it does not have any extra elements: neither in design nor software.
Manufacturer: Filmetrics, Inc.
Product name: aRTie
Reflectometer/Transmitometer, thin-film measurement
New this year: Brand New: Simplest Spectral Reflectance/Transmittance System Available,
Used for: Lab, Process, Hand-held/portable analyzer
Dimensions: 191 mm x 191 mm x 115 mm
Measurement Mode: reflectance/transmittance
Special Features: USB Powered , 40k-Hr Light Source, On-Board Wavelength Calibration, 380-1050nm Wavelength Range, 200-1700nm Versions Available, looks pretty cool.
Software: FILMeasure7. Available as separate product, May be used in other equipment, Compatible with other manufacturers' equipment
Suggested applications: Thin-film measurement.
Primary benefits: Simple, inexpensive, fast, accurate in both wavelength and reflectance/transmittance.
Manufacturer: HORIBA Scientific
Product name: Dual-FL
Spectorfluorometer/UV-VIS
New this year: The new Dual-FL is the world's fastest spectrofluorometer, and simultaneously measure both absorbance spectra and fluorescence spectra.
Used for: Lab, Process analysis
Measurement Mode: Fluorescence, transmission/absorption
Special Features: Simultaneous fluorescence and absorbance channels,
Back-illuminated CCD detector, excitation-emission Matrices (EEMs) are acquired up to 100 times faster than with other instruments.
Software: Available as separate product, 21CFR11 compliant, cGMP compliant, May be used in other equipment, Compatible with other manufacturers' equipment.
Suggested applications: Rapid multiple compound analysis, Continuous real-time reaction monitoring, Rapid method development
Primary benefits: Built-in UV/VIS allows analysis of samples with orders of magnitude variation due to inner-filter effect correction, can use as a stand-alone UV/VIS
Unique features worthy of mention: Only CCD-based benchtop fluorometer, UV/VIS absorbance detection path, Double grating excitation monochromator, High power 150W Xe lamp, Complete NIST-traceable corrected fluorescence spectra. Methods and batch protocols for automating multiple samples measurement available.
Manufacturer: Laxco, Inc.
Product name: Alpha Series
UV-Vis Spectrophotometers
New this year: Expanded product line in DSMs
Dimensions: DSM – 7.5 x 6.75 x 3.25 inches (L x W x H)
Accessories available: Complete line of sample accessories for the Alpha Series of spectrophotometer
Measurement Mode: transmission
Specialty accessory description: Single Cuvette holder
Special Features: DSM – Battery Powered
Software: Application Software, DSM
Suggested applications: Cell research, water quality, materials testing, basic research, chemical analysis, processing testing
Primary benefits: Durable, High Value, Reliable, Easy to Use, Multiple Language Support
Unique features: Chamber of Alpha Series supports most 3rd party accessories
Manufacturer: Tornado Spectral Systems
Product name: OCTANE
Optical Coherence Tomography Advanced Nanophotonic Engine
New this year: First nanophotonic spectrometer system for OCT. Equivalent free-space optical performance in a low-cost, scalable, ultra-stable package
Used for: Process analysis
Special Features: Equivalent free-space optical performance in a low-cost, scalable, ultra-stable package
Suggested applications: Ophthalmic OCT and NDT
Primary benefits: small size, low cost
Getting accurate IR spectra on monolayer of molecules
April 18th 2024Creating uniform and repeatable monolayers is incredibly important for both scientific pursuits as well as the manufacturing of products in semiconductor, biotechnology, and. other industries. However, measuring monolayers and functionalized surfaces directly is. difficult, and many rely on a variety of characterization techniques that when used together can provide some degree of confidence. By combining non-contact atomic force microscopy (AFM) and IR spectroscopy, IR PiFM provides sensitive and accurate analysis of sub-monolayer of molecules without the concern of tip-sample cross contamination. Dr. Sung Park, Molecular Vista, joined Spectroscopy to provide insights on how IR PiFM can acquire IR signature of monolayer films due to its unique implementation.
