What is solid phase extraction?
Solid phase extraction is the presentation of an adsorbent in a convenient vehicle for the extraction of analytes from a matrix such as water. The adsorbent allows a fairly rapid flow through of the media. This is a solventless extraction and therefore reduces concentration requirements as well as solvent useage. Some solvent is required to flush the analytes from the adsorption bed unless SPME is used where the coated needle can be inserted directly into the injection port of the gas chromatograph and the analytes desorbed there.. Figure 21 N. Simpson and K.C. Van Horne, eds., Handbook of Sorbent Extraction Technology, Varian Sample Preparation Products, Harbor City, CA, 1993.
Solid phase extraction is the presentation of an adsorbent in a convenient vehicle for the extraction of analytes from a matrix such as water. The adsorbent allows a fairly rapid flow through of the media. This is a solventless extraction and therefore reduces concentration requirements as well as solvent usage. Some solvent is required to flush the analytes from the adsorption bed unless SPME is used where the coated needle can be inserted directly into the injection port of the gas chromatograph and the analytes desorbed there. Figure 21 N. Simpson and K. C. Van Horne, eds., Handbook of Sorbent Extraction Technology, Varian Sample Preparation Products, Harbor City, CA, 1993.
