Application Notebook-02-01-2013

Application Notebook

Single Reaction Chamber Microwave Digestion for Specialty Chemicals

February 01, 2013

Atomic Spectroscopy

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Single reaction chamber microwave digestion enables a chemist to digest up to 15 different specialty chemical samples simultaneously at temperatures as high as 300 ?C, greatly simplifying the workflow while maintaining superior quality digestions.

EDXRF Analysis of Coal by FP Method

February 01, 2013

Atomic Spectroscopy

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The analysis of coal is demonstrated, with specific emphasis on the measurement of Na2O, using a Cartesian geometry energy dispersive X-ray fluorescence (EDXRF) spectrometer employing the Fundamental Parameters (FP) approach.

The miniDOAS: Low Cost, High Performance Contactless Ammonia Measurements

February 01, 2013

Molecular Spectroscopy

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Knowledge of atmospheric ammonia concentrations is important, but ammonia is difficult to measure. We report here on the development of a low-cost ammonia measuring differential optical absorption spectroscopy (DOAS) instrument, based on a small sized and low priced spectrograph.

Microwave Digestion of Pharmaceutical Samples for USP Method

February 01, 2013

Atomic Spectroscopy

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Pharmaceutical samples spiked with several heavy metals were prepared for ICP-MS analysis using microwave digestion following the protocols in proposed USP chapters and . The results of the spike recovery study are discussed.

Topographic and 3D Raman Imaging

February 01, 2013

Molecular Spectroscopy

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Confocal Raman imaging opened the door for many applications in Raman spectroscopy and imaging that were previously unavailable for measurement with conventional (non-confocal) Raman methods.

Non-Destructive Red Wine Measurement with Dispersive 1064 nm Raman Spectroscopy

February 01, 2013

Molecular Spectroscopy

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Owing to technological improvements spurred on by the telecommunications boom of the last decade, Raman spectroscopy has become much more accessible to users in all application areas, including agricultural, forensic, pharmaceutical, biomedical, and others.

Eliminating the Trade-Off Between Resolution and Throughput in Raman Spectroscopy

February 01, 2013

Molecular Spectroscopy

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Although Raman spectroscopy is an excellent analytical tool, Raman signals are often weak and traditional slit spectrometers typically have poor optical throughput, limiting their effectiveness in low light level setups.

Moxtek's ULTRA-LITE X-ray Source

February 01, 2013

Atomic Spectroscopy

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Moxtek's ULTRA-LITE X-ray source is a very small self contained X-ray source (X-ray tube and high voltage power supply) for use in portable X-ray applications, such as the handheld X-ray fluorescence (XRF) spectrometers. This note demonstrates that this X-ray source has a stable and repeatable X-ray flux output over time, which is vital for the precision of the calibrated XRF measurements.

Improved Sensitivity with the New Apollo XRF ML-50 Detector on the Orbis Micro-XRF Analyzer

February 01, 2013

Atomic Spectroscopy

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The measurement of trace elements is important across a wide variety of materials characterization problems. When measuring small glass fragments collected from crime and accident scenes, forensics experts analyze trace strontium (Sr) and zirconium (Zr) typically unintentionally incorporated into the glass during manufacturing as one point of identification or comparison.