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A Beginners Guide to  ICP-MS

Download Rob Thomas's  15-part ICP-MS Tutorial Series Published in Spectroscopy Magazine. Click on the image for details.


 Regulating Heavy Metals in Cannabis and Hemp: What we can learn from Pharma

 Presentation that Rob gave at the AOAC Educational and Training Work Group Meeting on Testing for Contaminants in Cannabis - Click on the image below to attend the recorded talk:

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Beyond Potency: The Importance of Measuring Elemental Contaminants in Cannabis and Hemp

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Magazine/Journal Publications 

Click on the image below for links to some recent magazine/journal articles authored by Rob Thomas


Scientific Writing Solutions 


An Independent Consultant Serving 

the Freelance Writing Needs of the Scientific Community

A Beginner's Guide to ICP-MS: Monthly Tutorial - Mass Separation Devices

The section on mass separation devices in ICP-MS is so important that Spectroscopy magazine has dedicated 4 separate issues to the subject matter, in order to cover all the commercially available technology. The four mass analyzers presented, together with their publication dates, are shown below. Click on the respective one to down load a pdf version of the tutorial.

Mass Analyzer Date
Quadrupole Instrumentation October, 2001
Magnetic Sector Systems November, 2001
Time of Flight Technology January, 2002
Collision/Reaction Cells February, 2002

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Download Rob Thomas's White Papers on the dangers of heavy metals in cannabis consumer products 

Understanding Sources of Heavy Metal Contaminants in Cannabis and Hemp: Benefits of a Risk Assessment Strategy

 The Importance of Measuring Heavy Metal Contaminants in Cannabis

The Challenges of Measuring Heavy Metals in Cannabis Vaping Aerosols

The Split Personality of Hemp

Role of ICP-MS in Understanding Toxicity Impact of Lead on Human Disease

Cost of Expanding the Panel of Elemental Contaminants in Cannabis


Learn about this ground breaking  workshop on heavy metals in cannabis by clicking below:

ASTM Workshop on Heavy Metals in Cannabis/Hemp Consumer Products


Atomic Perspectives Columns

For all of  Rob Thomas's Atomic Perspectives Columns in Spectroscopy Magazine, Click below for details.