Application Notes

Discover how geoscientists use Ocean Optics optical oxygen sensors for reaction kinetics studies of pyrite oxidation, which is often linked to environmental issues such as remediation monitoring in aquifers.

The EPA has established a maximum contaminant level of nitrate-nitrogen in potable water of 10ppm. This application presents results of UV-Vis analysis of nitrate concentrations in water samples, showing that the manual colorimetric method is suitable for analysis of nitrate contamination in water systems.

BaySpec's OCI series of hyperspectral imagers represent a new class of imaging sensors covering the 400-1700nm spectral region and ranging from 8 bands to 220 spectral bands.

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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.

Libraries of pre-computed ATR-FTIR mixture spectra and conventional ATR-FTIR polymer spectra were used to rapidly identify three major components from an ATR-FTIR spectrum of a sample labeled “EVA”.

Limestone is widely used as the main ingredient in cement and mortar, and as an aggregate in concrete and asphalt for building roads. It iis also used as a soil conditioner and is the raw material for making quick lime and slaked lime. During mining and processing operations, limestone composition must be monitored and controlled to ensure proper quality and characteristics are achieved for a variety of products. This application note demonstrates the measurement of carbonates and major oxides in high calcium limestone by EDXRF using empirical calibration.

This application note describes the method for preparation of four large baby food samples by microwave digestion using a minimal acid volume. Analysis by ICP-OES shows successful digestion.

An accessory to an ICP optical or mass spectrometer is described which speeds sample analysis and reduces carryover. This streamlined switching valve accessory is easy to install and uninstall, requires minimal training, and has a dramatically lower price point

The MSV-5000 series micro-spectrophotometer is designed to obtain transmission/reflection measurements over a wide wavelength range from the ultraviolet to the near-infrared wavelengths. It allows the measurement of an area as small as 10 µm diameter and the integrated high-resolution CCD video camera enables visual observation of the samples to determine the precise area to be measured. This instrument is suitable for measurement of micro samples or samples with microstructural features.

There is a need for a simple method that can be used to compare sensitivities of commercially available Raman instruments, especially in the demonstration and evaluation process. This short application note will address this need, with an easy method and non-toxic materials.

Characterizing Raman spectra of modified celluloses in pharmaceuticals, food, and materials industries. Raman spectra are compared and analyzed to determine spectroscopic features that can be useful in determination of physical and chemical properties.

Ocean microbiological activity of chemical species present in the sea surface microlayer was investigated using ATR-FTIR spectroscopy. We observe chemical differences before and during the peak of an induced phytoplankton bloom.

Excitation-emission spectroscopy provides information of multiple sites in luminescent materials. As a wavelength selective technique, however, it may lead to prolonged acquisition times when high resolution is required. In this application note we demonstrate how this can be done faster, whilst maintaining high resolution.

Using modular spectroscopy, we calculate the color difference -- Delta E in the L*a*b* color space -- of Pantone® color guide samples compared with a color reference.

Single reaction chamber (SRC) technology enables the digestion of up to 22 different inorganic sample types simultaneously at temperatures as high as 300oC, greatly expanding the capability of a broad range of difficult materials.

Raman micro-spectroscopy is a powerful tool to identify the chemical nature of organic and inorganic materials with spatially down to about 1 μm chemical images show the distribution of individual components within heterogeneous materials.

A novel FTIR spectrometer is used to monitor in real time an industrial fermentation process and fitted to HPLC data.

Spectral Systems has developed Beamsplitter coating designs which offer the highest performance and eliminates undesirable spectral features.

Hard disk manufacturing requires high levels of precision at nanometer scale for the production of a repeatable product with high memory density. Because hard disks are dependent upon magnetic properties to read and write to each memory unit, the disk has a layered structure comprised of magnetic and nonmagnetic materials. Over the last two decades, extensive work has been done by hard disk manufacturers to reduce grain size, which enables smaller, but consistent magnetic domain sizes and distinct boundaries. This movement toward tighter anufacturing tolerances requires advanced techniques for characterization. Compositional depth profiling with GD-AES enables precise characterization of the size of these thin layers of material.

Exploring the effect on oxidation reactions using Resonance Raman with a high power 785 nm laser