With human analysis level progress, in order to adapt to the requirements of the sample pretreatment to improve, solid phase extraction (SPE) technology much better than traditional liquid-liquid extraction technology.

Convenient environmental protection reproducible the save Labour when the province solvent, widely used in food, medicine and pharmacology environment for import/export inspection to the principle of each field tested samples of the compound and background impurities in the different packing column SPE distribution coefficient differences, matching the corresponding elution solvent, compounds and impurities separation classification reverse phase extraction column (from the polarity in matrix extraction nonpolar samples) is phase extraction column (from the polarity in matrix extraction polarity samples) ion exchange extraction column (extraction with electricity charges samples.

Specifications from 50 mg / 1 ml to 10 g / 60 ml, suitable for different volume sample processing, different specifications suit and convenient way to screen for you we have a solid phase extraction empty column and sep packing, convenient free fill application using C18 column is mainly used in reverse phase extraction, suitable for the polarity to moderate polarity compounds, such as antibiotic barbiturates polybenzoxazines caffeine drug dye exception balmy oil fat-soluble vitamins fungicides herbicide residues of pesticides PAH and PCB environment food additive carbohydrate of p-anisaldehyde toluene acid replace fat phenol phthalic acid ester steroid table activator theophylline water-soluble vitamin C8 C18 column than the polarity of the adsorption more weak some C2 column on C18 and relative to the C8. Because the short chain, keep the effects of small, suitable for the polarity of Silica gel Silica column polarity compounds compounds extraction, such as ethanol aldehyde amine active carbon filters drug dye herbicides pesticide ketone nitrogen organic acid phenol steroids Phenyl Phenyl relative to the C18 column and C8, adsorption even weaker, suitable for the polarity to moderate polarity compounds, especially of benzene content Cyano Cyano-cn column reverse phase extraction: suitable for medium polarity compounds, are phase extraction: suitable for polar components, such as yellow aspergillus toxin antibiotics dye herbicides phenol steroids, weak cation exchange extraction: suitable for carbohydrates cationic compounds. 

Amino Amino-NH2 column is phase extraction: suitable for polar components, weak anion exchange extraction: suitable for carbohydrates weak anions and organic acids compounds acid Alumina Alumina A column PH ~ 5 polar components ion exchange and adsorption extraction, such as vitamin alkaline Alumina Alumina B column PH 8.5 cation exchange and adsorption extraction neutral Alumina Alumina N-neutral column PH 6.5, polar components adsorption extraction, adjust PH, Yang and anion exchange, suitable for vitamin antibiotics balmy oil enzyme hormone indican magnesium silicate Florisil column polarity of the compounds adsorption extraction, such as ethanol aldehyde amine drug dye herbicides pesticide PCBs. Strong anion exchange SAX column for anionic surfactant organic acid nucleic acid nucleotide, capacity: 0.2 mm equivalent/g strong cation exchange SCX column for cationic antibiotics organic alkali amino acids catecholamine herbicides nuclear acid and alkali nucleoside surface activator, capacity: 0.2 mm equivalent/g if there is demand, welcome to contact.