عنوان مقاله [English]
Matrix solid-phase dispersion (MSPD) is a sample-preparation process was first introduced in 1989 for the extraction of drug residues from animal tissue. By blending tissues with a polymeric phase bound to a solid support one obtains a semi-dry material which can be used as a column packing material from which one can isolate drugs in a stepwise manner based on the solubility characteristics of the drugs in this matrix.
Matrix solid phase dispersion (MSPD) has found particular application as an analytical process for the preparation, extraction and fractionation of solid, semi-solid and/or highly viscous biological samples.
MSPD is based on several simple principles of chemistry and physics, involving forces applied to the sample by mechanical blending to produce complete sample disruption and the interactions of the sample matrix with a solid support bonded-phase (SPE) or the surface chemistry of other solid support materials. These rules are discussed as important factors in the MSPD extraction.