Author Archives: kyle

Correlation Vs. Multivariate Algorithms for Material Identification

Posted on July 1, 2013 by kyle

This article discusses the two most common approaches used for on-board analysis on handheld Raman spectrometers; Hit Quality Index (HQI) and significance level (p-value), with specific examples for the use of each algorithm. Continue reading →

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Discrimination of Bacterial Growth Media

Posted on June 24, 2013 by kyle

Article on using B&W Tek’s NanoRam handheld Raman spectrometer to distinguish highly-fluorescent biological samples without the use of surface-enhanced Raman scattering. Continue reading →

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Identification of Legal Highs using Handheld Raman Spectroscopy

Posted on June 3, 2013 by kyle

B&W Tek’s NanoRam was used in a study focused on Raman spectroscopy as a rapid and powerful tool for critical applications in forensic science. The advantage of Raman spectroscopy is that the Raman signal is often selective to pharmacologically active drug substances. Continue reading →

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New Article in the Journal of Raman Spectroscopy

Posted on May 29, 2013 by kyle

This research article discusses using surface-enhanced Raman spectroscopy (SERS) to detect & identify traces of pentaerythritol tetranitrate (PETN), ethylene glycol dinitrate (EGDN), cyclotrimethylene-trinitramine (RDX) & trinitrotoluene (TNT) using commercially available substrates… Continue reading →

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App Note: Quantitative Analysis of Tertiary Mixtures

Posted on May 21, 2013 by kyle

Application note on using Raman spectroscopy to develop a quantitative calibration model to determine the glucose, fructose and sucrose concentrations in a tertiary aqueous mixture. Continue reading →

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Tip of the Week: 05/14

Posted on May 14, 2013 by kyle

For field applications like geological or archeological studies, use DC power on any B&W Tek portable Raman spectrometer for battery operation mode. Continue reading →

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Miniature Spectrometer Designs Open New Applications Potential

Posted on May 6, 2013 by kyle

This article, published in LaserFocusWorld’s May issue, discusses the fundamental principles of miniature spectrometers and how recent developments have opened up the technology to applications that were previously beyond their capability. Continue reading →

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Educational Video Series: Episode 6 – Raman Spectroscopy

Posted on April 29, 2013 by kyle

In this season finale episode of B&W Tek’s Educational Video Series we discuss Raman. Our discussion will include an introduction … Continue reading →

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Tip of the Week: 04/25

Posted on April 25, 2013 by kyle

For easy alignment and extra stability when measuring transmission through a large piece of glass or plastic, you can remove the center piece on B&W Tek’s adjustable cuvette holder and insert your sample between the two collimating optics. Continue reading →

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Raman Spectroscopy Tackles Pharmaceutical Raw Materials

Posted on April 1, 2013 by kyle

Today’s Raman instrumentation is faster, more rugged and less expensive, and advances in component miniaturization have led to the design of high-performance, portable, handheld devices. These handheld devices are particularly well-suited for pharmaceutical applications. Continue reading →

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