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Our laboratory possesses and utilizes 4 HPLCs

The HPLC excels at determining the identity and quantity of elements and molecules, be they the activity in an herb, the product of an enzymatic reaction, or any molecule which absorbs light or that can be made chromophore (able to absorb/transmit light). The HPLC is very specific in being able to absolutely determine what a substance is and exactly how much of it there is.

The HPLC works by automatically injecting a small volume of liquid sample into a column packed with particles 120 the thickness of a sheet of paper. The liquid sample is forced through the column by powerful micropumps. The detector sends a digital signal to the computer, where specialized software is used to identify and determine the quantity of the separated components.

We routinely use it to analyze the composition of compounds present in complex mixtures, such as water- and fat-soluble vitamins. We also use the HPLC to analyse a large variety of plant materials, for example astragalus, dandelion, and red clover.

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