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Cannabinoid Profiling and Potency Testing
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Determination of Water in Cannabis & Hemp by Karl Fischer Titration
The article describes Karl Fischer titration (coulometry with oven and direct volumetric titration with external extraction) in comparison to the loss on drying method for accurate determination of water content in hemp samples.
Easy and quick drinking water analysis with photometric method
Drinking water analysis is a very important step to get an understanding of the quality of water we consume, in both tab water and bottled water. Key parameters to check are Iron, Manganese, Chlorine, Ozone and others. Those need to
The Essentials of Air Sampling from Strategy to Solutions
Selecting air monitoring methods and related air sampling media devices, the fundamental differences between active and passive sampling devices, how analytical instrumentation plays a role .
Cannabinoids Analysis of Hemp Derived Products- Developing Methods That are Robust and Dependable
Legalization and use of hemp, recreational and medical cannabis is expanding globally. Cannabidiol (CBD) and Tetrahydrocannabinol (THC) containing cannabis products are consumed in various forms such as flower to vape pens, edibles, concentrates, tinctures, beverages, topicals, capsules, etc. These products
Photometric Water Testing - A Solution for Every Step of the Analysis
Learn about common challenges in wastewater analysis and how we can help you overcome these with our workflow-oriented system offering. Expect best practices and troubleshooting for every step along the workflow in wastewater analysis. Understand how the Spectroquant® system including
Beer analysis without the headache
The analytical quality assurance is one of the most important steps to assure the quality of the measured results. Photometric methods are used in many laboratories for the examination of water and wastewater samples. In this Web Talk we will
Testing for E. coli and Coliforms in Drinking Water According to ISO 9308-1
Testing for E. coli and Coliforms in Drinking Water According to ISO 9308-1
Analytical Quality Assurance for accurate water analysis with photometry
The analytical quality assurance is one of the most important steps to assure the quality of the measured results. Photometric methods are used in many laboratories for the examination of water and wastewater samples.
Supelco® Carbon Adsorbent Selection Guide
General guidelines for choosing carbon adsorbents
Passive Air Sampling Tubes for US EPA Method 325
Supelco's FLM Carbopack X TDU tubes are designed for monitoring volatile organic compounds emitted from petroleum refineries, in compliance with US EPA Method 325.
Cannabinoid Profiling and Potency Testing of Cannabis and Cannabis Products
Cannabis potency testing detects and measures the total content of cannabinoids (THC, CBD, and others) in a sample by using analytical techniques, such as high-performance liquid chromatography (HPLC) coupled to UV or MS detector and/or GC paired with FID/MS.
Analysis of Vitamin E Acetate in Vaping Solution
High-performance liquid chromatography (HPLC) separation and quantitation of vitamin E acetate in commercially available vape products, in addition to simultaneous analysis of THC and CBD in the same run.
Optimizing for High Throughput Analysis of Cannabinoids in a Variety of Matrices Using Ascentis® Express C18 Column
A complete workflow for the HPLC separation of 17 cannabinoids in different cannabis products using Ascentis® Express C18 Column in a shorter run time with retention time stability. Learn more here.
Analysis of PFAS Extractables in Glass Fiber Membrane Filters After OTM-45 Front-Half Extraction
Data and recommended filtration products for OTM-45 Method for Air Monitoring of PFAS Compounds.
Cannabinoid Analysis of Hemp: Developing an Efficient HPLC Method Workflow
Several different HPLC method options are explored for the efficient and time effective analysis of cannabinoids in a sample of hemp flower. The differences between gradient and isocratic analyses are explored, and the two methods are compared in determining the
Cannabinoid Certified Reference Materials (CRMs) for an Improved Testing Accuracy and Traceability
We offer a portfolio of cannabinoid CRMs such as THC and THCA, available as single component solutions or mixes, certified in accordance with ISO 17034 and ISO/IEC 17025 for accurate cannabinoid profiling and potency testing.
Reliable & Consistent Custom Oligos for Commercial Use
Learn how stringent quality control, minimized cross-contamination, and dedicated project management help you accelerate the commercialization of your demanding oligo project.
Critical considerations when choosing a syringe filter for HPLC, UHPLC, and LC-MS/MS analysis. A case study with PFAS Analysis
We cover the most important factors to consider while choosing a filter membrane, including membrane material, to chemical compatibility, extractables and particle retention. Then, a case study is provided for choosing the right syringe filter device for sample preparation in
Good Water Practices for Reliable LC–MS and ICP-MS Analyses
In this webinar, Estelle Riché, Global Application Specialist at Milli-Q® Lab Water Solutions Merck, will discuss how water is purified for the most sensitive analytical techniques, will provide guidance on how to select the optimal water purification solution, and will
Calculating Your Working Tolerance: A Guideline
Guideline to calculate your working tolerance - Certified Standard Solutions (CRM)
ICP-MS Analysis of Heavy Metals in Hemp-Containing Beverages
A step-by-step protocol for sample preparation, calibration, digestion, and inductively coupled plasma-mass spectrometric (ICP-MS) analysis of heavy metals in six different hemp-containing beverages.
EPA LEAF Methods for Leaching Assessment
This article discusses the differences and benefits of using EPA LEAF methods as an alternative to TCLP for solid materials. Employed in the laboratory, LEAF methods provide improved control of key factors that can affect leaching in on-site TCLP testing.
Analysis of Active Cannabis Compounds (Cannabinoids) in Edible Food Products: Gummy Bears and Brownies
Rapid potency testing of marijuana-infused edibles using LC/MS on a biphenyl stationary phase detected eleven cannabinoids.
Workflow for Cannabinoids Analysis in Cannabis Using Chromolith® Monolithic Silica HPLC Column Providing Low Backpressure and Extended Column Lifetime
A comprehensive high performance liquid chromatography-diode array detection (HPLC-DAD) workflow for the analysis of 14 cannabinoids in hemp bud extracts within 10 minutes using robust Chromolith® monolithic silica HPLC columns with low column back pressure.
Workflow for Cannabinoids Analysis in Hemp and Hemp-Infused Products
A step-by-step workflow for the sample preparation of hemp bud, hemp oil, chocolate, gummy, candy, and cream for the HPLC-PDA separation and analysis of 17 cannabinoids.
Cannabis Testing
Cannabis analysis includes quantitation of cannabinoids, terpenes, residual pesticides and mycotoxins, heavy metals, moisture, and microbial contamination in cannabis plants and cannabis-infused products with the help of robust analytical testing methods.
Cannabis Potency Testing: Method Development and Cost Considerations
An overview of gradient HPLC-based analysis of cannabinoids, optimized for key method parameters such as column temperature, mobile phase pH, and methanol as low-cost organic modifier. Learn more here.