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New Evaluation Report: Comparison of Four Raman Spectrometers

Hillary Markert, Sr. Forensic Specialist – Chemistry, today presented the findings of a comparison of four commercially available, portable Raman spectrometers at the 63rd annual American Academy of Forensic Sciences symposium in Chicago.

Raman spectrometers are designed to provide law enforcement, airport security, border patrol, military, emergency service personnel and other first responders with the ability to perform non-destructive analyses on unknown bulk powders and liquids.  The authors examined performance of the ICx Fido® Verdict™, DeltaNu® ReporteR™, Thermo Scientific® First Defender RM™, and the Smiths Detection RespondeR™ RCI. These instruments were assessed for strengths, areas for improvement, limitations, ease of use, safety and chemical characterization process requirements.

To download the scientific poster, click here. For additional evaluation reports of chemical identification and analysis tools, visit the Technology Evaluation, Chemistry page.

Four Raman Spectrometers Examined
NFSTC scientists compared the performance of four Raman spectrometers

NFSTC lab evaluates DeltaNu® ReporteR™ portable Raman spectrometer

NFSTC conducted an evaluation of the performance of the DeltaNu® ReporteR™ Portable Raman Spectrometer in order to provide laboratories with information to assess the strengths and limitations of this Raman technology for evidence identification. Visit the Chemistry Technology Evaluations page to download the complete report.

While you’re there, check out other technology evaluation reports in chemistry, biology and DNA, and crime scene investigation.

NFSTC releases evaluation of the Applied Biosystems AmpFℓSTR® Identifiler® Plus STR amplification kit

To assist forensic laboratories in understanding the general performance of commercially available STR amplification kits, NFSTC has evaluated the Applied Biosystems AmpFℓSTR® Identifiler® Plus amplification kit as an addition to a previous study of eight kits manufactured by Applied BiosystemsTM and Promega Corporation. The kits were assessed for: sensitivity, peak height ratios at heterozygous loci, baseline noise, stutter ratio and amplification artifacts. These criteria were evaluated by analysis of single-source human DNA samples and a mixture series.

The current study was performed using the same sample set and performance standards as the previous amplification kit study.

Visit the Technology Evaluations page to download the complete report.