Subcritical Water Extraction is considered an environmentally responsible "green chemistry" due to some key operation considerations: 1. Minimal chemical consumption during the extraction process (water is the main solvent used). 2. Power usage for...
Tips for Selecting the appropriate Nutrient Analyser
Flow injection analysis first appeared in the 1970’s and has evolved into a larger group of automatic chemical analysers. The current technologies in this group are: Flow Injection Analysis (FIA) Segmented Flow Analysis (FIA) Discrete Analysers Different...
Analytical Separation of Cannabinoids by SFC
Supercritical Fluid Chromatography (SFC) is a relatively new technique that offers several advantages including faster run times, better resolution and more concentrated separations.The limitations of SFC are: it has only been proven on small molecular...
Preparative Separation of Cannabinoids by SFC
Typically medicinal cannabis production involves an initial extraction from the flower bud material using Supercritical Fluid Extraction (SFE), solvent extraction or similar technique to produce a concentrate of terpenes and cannabinoids. The basic SFC...
Cannabinoid Supercritical Fluid Extractions
Medicinal Cannabinoid production is an emerging market that overlaps well with supercritical fluid techniques. For initial extraction of the cannabinoids and terpenes, supercritical fluid extraction can be used to separate the raw cannabinoid oils...
Digestion of Liver Samples
Various organs in animals have the ability to accumulate heavy metals. An example is mercury (Hg) in shark liver. A commercial application is monitoring Cadmium in sheep liver which can be used for paté usage. The universal limit set for Cadmium is lower than...
Analysis of Cadmium in Liver
Monitoring of heavy metals in various foods is being continually updated with specified maximum allowable levels. Determination of Cadmium in liver is an example. Using a high sensitivity procedure, Cadmium was detectable in liver samples down to 7ppb; more than...
On-line Analyser Total Nitrogen & Total Phosphorus
Total N is measured in the same device with UV digestion + UV reduction for Total Nitrogen. Colorimetric, acidic digestion and UV Digestion is used for Total Phosphorus.
On-line monitoring of run-off organics
After a prolonged dry period, heavy rainfall in a catchment area can yield unacceptably high levels of organics and toxic analytes in a river system flash flood. Water-treatment plants that process this raw water with high agricultural analytes, then have flocculants...
Safe digestion of Sulphide Ores
The digestion of sulphide ores for analysis by AAS ,ICP or ICP-MS creates two potential problems. 1. Sulphide ores can contain silicates which are difficult to digest by aqua regia and require use of HF which requires special handling and safety...
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