Application Notes

This applications note presents an example of ppb sensitivity using a commercially available PAS system based on MEMs cantilever microphone technology together with a high power, narrow band and widely tunable mid-infrared OPO.

Gluten -- a substance found in grains – is an allergen for some people. When processing gluten-free and other grains, cross contamination is a risk. This article describes how NIR spectroscopy combines with machine vision for accurate sorting of glutenous grains.

The use of the transmission Raman mode instead of the traditional backscattering one brings additional flexibility for the analysis of material, especially when averaged information of bulky samples is required.

Olive oil production is a multibillion industry, with food-grade varieties subject to regulation regarding their origin and quality. In this application note, the Ocean Optics Spark spectral sensor identifies potentially damaging adulterants and dilutions in olive oil samples.

Various methods exist to assess the quality and purity of cocoa powder, Near-Infrared Spectroscopy offers the fastest and easier technique for verifying authenticity.

Fraudulent mislabeling of honey is an increasing concern, due to its high-value. NIR Spectroscopy detects known and unknown adulterants in honey, quickly and easily.

Plastic consumption is increasing across the world, with initiatives to recycle plastics opposed to discarding in landfills. Infrared offers fast and easy measurement of plastics types.

Coupling, or hyphenating, two instruments can uncover results and insights not possible with individual techniques. Explore how the power of your analysis, becomes greater than the sum of its parts.

IR Microscope can be used for the detection and identification microplastics in cosmetic products, which ultimately end up in the marine environment, affecting the human food chain.

The use of post-consumer recycled, high-density polyethylene (HDPE) has been steadily growing. Infrared technique is commonly used to identity polypropylene (PP) with is a common contaminant in post-consumer HDPE resin.

Sun Protection Factor (SPF) allows consumers to compare protection provided by sunscreens. Standardized methods properly evaluate the level of protection from UVA / UVB, and confirm label claims of their effectiveness.

Global exporting of Olive Oil is continuously growing, which poses a series of challenges by the worry of intential adulteration for financial profit or unintentional environmental contaminant. Explore the techniques for identifying contaminants.

Peak emission for silicon occurs at values beyond the range of sensitivity for silicon-based detectors, like CCDs. EMCCDs combine a larger field of view and higher resolution with high sensitivity in the NIR at lower cost.

Spectral Systems has developed its Diamond XP-BBAR™coating with spectral performance.The SNR is about 30% better through most of the analysis region of a typical FT-IR instrument. www.spectral-systems.com

Olive oil is among the most commonly adulterated food products. Raman spectroscopy has the potential to be utilized in measurements of olive oil to establish purity from adulteration with other, less expensive, oils. This application note reviews some of the most compelling data present in recent scientific literature to support this claim.

The drying of a pressure-sensitive polymer adhesive was monitored by attenuated total internal reflection (ATR) IR spectroscopy. Correlational analysis revealed changes in the composition of the film surface with time.

Handheld Raman is a useful tool for differentiating solvents used in chemical and pharmaceutical manufacturing. This application work describes the application of handheld Raman for identification and confirmation of solvents using an advanced sampling method.

The value of milk and high market demand, has resulted in milk as a target of adulteration. Adulterants intentionally or accidentally added to milk can be detected though the use of NIR Spectroscopy coupled with Adulterant Screen™.

The use of Fourier Transform Near-Infrared Spectroscopy is a rapid and effective technique for determining if spices of high-value products are being adulterated with lower-value commodities.

UV/Visible Spectroscopy is the preferred technique used for measuring Specular Reflectance and Diffuse Reflectance, when measuring materials used in the solar industry. Learn the importance of selecting the appropriate accessory for UV/Vis/NIR measurements.

UV/Visible Spectroscopy is the preferred technique used for measuring Specular or Diffuse Reflectance and Transmission characteristics of materials used in the solar industry. Learn the importance of selecting the appropriate accessory for UV/Vis/NIR measurements.

Spark is an ultra-compact spectral sensor that bridges the spectral measurement gap between filter-based devices such as RGB color sensors and CCD-array instruments such as miniature spectrometers.

IR Microscopy is a primary forensic technique for characterizing multiple layers in automobile paint chips found at the scenes of road traffic accidents, identifying the make, model and year of the vehicle.

Automated IR Microscopy, using intelligent detection routines allows for rapid characterization of layers, particles and foreign objects in different materials, such as polymers, packaging materials, pharmaceuticals and electronic components .

Automated IR microscopy is an extremely valuable troubleshooting technique for detecting and characterizing micro-contaminants in manufacturing processes, that may lead to product quality issues or even product failure.

Spectral Systems has developed its Diamond XP-BBAR™ coating with spectral performance. The SNR is about 30% better through most of the analysis region of a typical FT-IR instrument. www.spectral-systems.com

Demonstrates uRaman from TechnoSpex Pte. Ltd. is a promising instrument to determine the quality of the transferred single layered graphene on a 300-nm silicon dioxide (SiO2) substrate.

ParticleFinder: Locate particles, generate size/shape statistics, select particles based on size/shape, and acquire Raman spectra. Easily locate and identify particulate matter, including pharmaceutical materials, trace forensic evidence, geological rock/mineral particles, and airborne contaminants trapped on filters.

A broadband polarizing beamsplitter (PBS) cube was developed using embedded Moxtek® Nanowire® grid polarizer technology. The Moxtek ICE Cube™ PBS provides superior performance in broadband, low f/# spectroscopic applications where both high efficiency and excellent contrast are required.