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  • PerkinElmer Free Forensics Webcasts

Improved Precision in Headspace Blood Alcohol Analysis - NEW!

Precision and accuracy are of utmost importance in Blood Alcohol analysis because an analysis must be scientifically sound, but more importantly must withstand examination in a court of law.

This webinar will demonstrated the ability of HS-GC to meet and exceed state regulated precision and accuracy proficiencies, while maintaining a run time of less than 3 minutes. The data presented in this study will show that over the course of 3 months and more than 500 sample injections a standard with 0.19% ethanol achieved an RSD of 1.23%. This demonstrates a method that is not only is the method fast, but extremely precise, accurate, and most importantly robust.

Presenter: Timothy Ruppel, Senior Product Specialist, PerkinElmer
Duration: 1 hour 16 minutes
Format: Windows Media Player


Increased Productivity in Drugs of Abuse Analysis - NEW!

Techniques for detecting drugs of abuse in biological samples have greatly improved with advances in analytical instrumentation. Bench top GC/MS systems are the instruments of choice for forensic scientists. These instruments are legally defensible in court as they are able to positively identify the presence of drugs in urine and blood samples. Even though mass spectrometry technology is advancing, forensic scientists are still hindered by time consuming extractions that must be performed for specific drugs of abuse.

One fundamental problem encountered is the need for multiple extractions for both identification and quantitation of particular analytes. The PerkinElmer Gas Chromatograph/Mass Spectrometer (GC/MS) is capable of positive identification as well as quantification of a drug in the same injection though the use of SIFI (Single Ion Monitoring and Full Scan in the Same Run). The result is that only one extraction and one injection using the GC/MS system is necessary. In the past it took multiple extractions and multiple chromatography analyses.

This SIFI technique will be demonstrated along with other optimized techniques using the industry standard GC/MS technology for increasing the productivity in Drugs of Abuse.

Presenter: William Goodman, GC/GCMS Applications Specialist, PerkinElmer
Duration: 33 minutes
Format: Windows Media Player