SimplyLab SCX Solid Phase Extraction Column

SimplyLab SCXIntroduction to Solid Phase Extraction Column

SimplyLabStrong cation exchange extraction column（SCX）It is based on a silicone matrix, bonded with benzenesulfonic acid functional groups. Due to the negative charge of the sulfonic acid group, it has strong cation exchange ability. In addition, the benzene ring has a certain hydrophobic retention effect. Strong cation exchange extraction column（SCX）Can extract alkaline compounds with positive charges, such as amines.

SimplyLabSCXProduct features of solid-phase extraction column:

★lowerpKavalue

★ Strong cation exchange and reverse phase dual retention capability

★ By adjustingpHValue can change the charged state of sulfonic acid groups, facilitating elution

SCXProduct parameters of solid-phase extraction column:

★ Specific surface area:510 m²/g
★ Average particle size:40 -75Mm
★ Average pore size:70

SCXRelated applications of solid-phase extraction columns:

★ Detect pesticide and antibiotic residues in food, such as macrolide drugs

★ Detecting drug abuse, such as amphetamines

★ Analyze drugs and their metabolites in biological matrices

《NY/T 1725-2009Determination of residual levels of imidacloprid in vegetables Excerpt from "High Performance Liquid Chromatography":

7.2 purify

Use methanol sequentially（4.2）Each water5mLPre leaching activated strong cation exchange extraction column（4.11Strong cation exchange extraction column（SCX）Using silicone as the matrix, bonded with benzenesulfonic acid functional groups, with specifications of500 mg/6 mLWhen the solvent level reaches the surface of the column adsorption layer, immediately7.1Transfer the obtained solution toSCXIn the column. use3mL盐酸溶液（4.5）Wash the residue in the round bottom flask intoSCXIn the column, repeat once. Then use water and methanol in sequence（4.2）Each5 mLrinseSCXDiscard all the effluent and drain the small column.

use15mLammonia water-Methanol solution（4.6）Divide3Secondary elutionSCXColumn, collect eluent in150 mLIn a round bottomed flask. On a rotary evaporator (water bath temperature)40Concentrate to near dryness at ℃, blow dry with nitrogen, and then use2.00 mLacetonitrile-Aqueous solution（4.7）Dissolve steam residue, pass through0.45MmMicroporous organic filter membrane, to be tested.

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