4 g MgSO4, 1 g NaCl,1 g NaCitrate, 0.5 g disodium citrate sesquihydrate

  QuEChERS Extraction Kit (Original), 4 g MgSO4, 1 g NaCl with 50 mL Centrifuge Tube

QuEChERS Extraction Kit (AOAC), 6 g MgSO4, 1.5 g NaOAc with 50 mL Centrifuge Tube, AOAC (2007.01), and European (EN 15662) QuEChERS methods.

CHẤT NHỒI PRS PRS SORBENT PRS (Propylsulfonic Acid) is a strong cation exchange extraction column using propylsulfonic acid-bonded silica as the filler. It has excellent retention capabilities for weakly basic compounds. PRS does not have non-polar secondary interactions, providing unique selectivity. When non-polar components in the sample matrix cause interference with SCX, PRS can be used for extraction.