© 2023 MJH Life Sciences and Cannabis Science and Technology . All rights reserved.
© 2023 MJH Life Sciences™ , Cannabis Science and Technology . All rights reserved.
February 01, 2023
Here we continue the discussion of energy and elements used in atomic spectroscopy by looking at one of the most commonly used analytical techniques in the elemental analytical laboratory—inductively coupled plasma-atomic emission spectroscopy (ICP-AES).
This article addresses the US Department of Agriculture’s hemp testing rules and what laboratories should know regarding hemp testing. The author provides a short tutorial for laboratories and includes a section how laboratory information management systems (LIMS) can help.
February 07, 2022
This article outlines why multiple testing modes are important, what to look for in third party test providers, and how a cultivator can evaluate these potential providers both at the outset and in an ongoing manner for accuracy and reliability.
October 12, 2021
In part I of this series on statistical concepts related to cannabis analysis, we introduce the normal distribution, standard deviation, and how to calculate precision and accuracy.
September 20, 2021
The inter-laboratory variation problem still exists, which means laboratory certification is necessary, but not sufficient to guarantee your samples are analyzed properly. Here, Smith offers suggestions to help improve the situation.
May 05, 2021
Why the USDA’s requirements on what part of the plant to sample and how to obtain samples from the field are rife with problems and how to solve them.
March 05, 2021
This work describes an inductively coupled plasma-mass spectrometry method for the analysis of various heavy metals in cannabis sativa plant material.
October 01, 2020
In this interview, Jeffrey Williams the CEO of Exum Instruments discusses the details of how laser ablation laser ionization-time of flight-mass spectrometer (LALI-TOF-MS) is set to solve some of the many of the issues involved in sample preparation for the cannabis industry.
August 19, 2020
Here a scientifically based representative sampling plan for hemp grows is presented, detailing how to collect composite samples, how many to collect, and how to analyze them.
April 04, 2019
Laboratories are challenged with highly regulated and difficult sample schematics, sample preparation, extraction, and testing procedures that try to ensure accuracy and precision of testing. Accuracy in analytical testing starts at the very beginning with sampling and sample preparation prior to testing.