We took a look at our most read articles from 2018; here are the top 8.
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1. The Quantitative Determination of Phytocannabinoids in Hemp Oils Using HPLC with UV Detection
Presented herein is a procedure for the quantitative determination of 11 important cannabinoids, including CBD, in hemp oil using high performance liquid chromatography (HPLC) with ultraviolet (UV) detection.
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2. A Comprehensive Approach to Pesticide Residue Analysis in Cannabis
Here the authors present a straightforward acetonitrile extraction using a solid-phase extraction (SPE) cartridge and targeted dispersive solid-phase extraction (dSPE) cleanup. Read the full article
Left to right: Dr. Jacklyn R. Green, Shannon Hoffman, and Dr. Sue Sisley, M.D.
3. Pioneering Spirits: Three Women Leaders in Cannabis Science Share Their Trials, Tribulations, Successes, and Advice
"Cannabis Crossroads" shares inspiring stories of passion and persistence by highlighting the amazing efforts of some truly pioneering women: Shannon Hoffman, Dr. Jacklyn R. Green, and Dr. Sue Sisley, M.D. Read the full article
4. Error, Accuracy, and Precision
Find out if you know the difference between accuracy and precision. Read the full article
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5. Curbing the Cannabis Industry's Appetite for Energy
A look at energy consumption in the cannabis industry and suggestions on how cultivator's can reduce those costs. Read the full article
6. Advancing Chromatography Methods for Cannabis Analysis
Anthony Macherone, senior scientist at Agilent Technologies and visiting scientist at the Johns Hopkins University School of Medicine, recently spoke to us about his research and the chromatographic techniques he's found to be most effective for profiling cannabinoids and terpenes, detecting pesticides, and residual solvents testing. Read the full interview
7. Goal-Oriented Extraction Processes
One of the key challenges when designing a cannabis processing plant is the overwhelming number of options available. A goal-oriented approach, focused on finding the best fit between process and physicochemical product attributes is critical. Read the full article
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8. Holding Data to a Higher Standard, Part I: A Guide to Standard Production, Use, and Data Validation
The complex question of whether or not data or results are valid involves both the testing process and the actual calculated results. Read the full article
Ep 25: Cannabis Quality Differentiation Beyond Cannabinoid Content
February 28th 2025In this latest installment of Noid Knowledge we are joined by Julie Kowalski, a leading mind in analytical chemistry and cannabis testing. Julie has arranged a very compelling symposium for Pittcon entitled Cannabis Aroma: Advances and Challenges in Determining and Commercializing Cannabis Product Quality Attributes. It is taking place on Wednesday, March 5, 2025, starting at 9:30 AM in room 209. The session features top notch speakers, including several previous guests of this show, and yours truly, discussing the next generation of quality assessment in cannabis.
Ep 24, Part III: Data Transparency in Cannabis Testing with Yasha Kahn
December 26th 2024In the final part of this episode, Evan Friedmann and Yasha Kahn discuss the need for a national entity to centralize cannabis data collection, moving from snapshot data to continuous updates. They emphasize the importance of accurate lab data and adverse event tracking, suggesting QR codes on packaging to report issues. Yasha suggests harsher consequences for result manipulation and suggests collaboration between state departments and federal entities to support underfunded regulators. They also discuss the potential benefits of off-the-shelf testing and the importance of stability testing. Finally, Yasha shares his top three reading recommendations for the audience.