SPE CARTRIDGES

RayCure SPE series provides high-quality SPE cartridges for various types of solid phase extraction, including manifold, vacuum as well as automated solid phase extraction equipment, well compatible with RayKol automated solid-phase extraction systems. RayCure SPE cartridges utilize high-quality sorbents to ensure the efficiency of SPE clean up, offers full range of solid phase extraction cartridge for various sample matices. Strict quality managment and control ensures high recovery rate of analytes and experiment reproducibility. RayKol provides effective, efficient and economial SPE cartridges with high performance. SPE CARTRIDGE TYPES RayCure SPE Column RayCure SPE series provide pre-packed SPE columns with a variety of sorbents, resins and cartridge size for various methods and target analytes. RULES TO SELECT RAYCURE SPE CARTRIDGE TYPES Rule I: The properties of solid phase packing in SPE cartridges should be match to target compounds. Rule II: Take the advantage of differences between analytes of interest and interferences Rule III: Consider nature of SPE sample matrices, characteristics of analytes and solubility of used solvents Users can select RayCure SPE columns depending on properties of desired analytes and sample matrices as following selection guides. Target compounds Properties of analytes Corresponding SPE Solubility Polarity/Ionicity SPE mechanism Sorbent phase Water soluble Compounds with high/low polarity Non-polar C18 Polymer HLB Ionic compounds Anion exchange MCX, WCX Cation exchange MAX, WAX Soluble in organic solvents Polar compounds Normal phase bonding PSA, NH2 Compounds with neutral polarity Normal phase adsorption Silica, Florisil Non-polar compounds Reversed phase C18 Based on nature of SPE sample matrices SPE sample matrices SPE sample matrices Target compounds Impurities RayCure SPE column Fruits, vegetables, fruit juice, vegetable juice, fruit wine, herbs Multiple pesticide residues Carbohydrates, pigments, organic acid, phenol RayCure QuEChERS d-SPE kits RayCure NH2 RayCure PSA RayCure GCB/NH2 RayCure GCB/PSA RayCure Florisil Weak polar pesticides Carbohydrates, pigments, organic acid, phenol RayCure HLB RayCure C18 Alkali pesticides Carbohydrates, pigments, organic acid, phenol RayCure MCX RayCure WCX Acidic pesticides Carbohydrates, pigments, organic acid, phenol RayCure MAX RayCure WAX Dairy products, blood, urine, animal tissues Neutral, weak alkali, weak acidic drugs Proteins, fats RayCure HLB RayCure C18 Alkali drugs Proteins, fats RayCure MCX RayCure WCX Acidic drugs Proteins, fats RayCure MAX RayCure WAX Soil, wastewater hydrophobic organic pollutants Humic substances RayCure HLB RayCure C18 Pesticide residues Humic substances RayCure Florisil Oil and grease Fat-soluble vitamins, phospholipids, aflatoxins Fats RayCure Silica RayCure NH2 RayCure PSA HOW DOES SPE COLUMN WORK? SPE is a conventional and efficient extraction technique, it uses the affinity of solutes dissolved or suspended in mobile phase for stationary phase to separate desired compounds from a mixture. And there are two solid phase extraction mechanisms to obtain target analytes from complex samples, to retain desired compounds in stationary phase or retain impurities in solid phase. Depending on the difference of two mechanisms, SPE procedures could be a bit various. When sample portion passes through SPE column, undesired impurities are discarded with mobile phase, target compounds are retained in stationary phase, then rinse stationary phase with eluents to collect target compounds. It is the most commonly used purification mechanism of solid phase extraction. In the opposite, to retain impurities in stationary phase, target compounds and few impurities are collected in mobile phase when sample portion passes through SPE column. Rinse the stationary phase which impurities is retained with solvents to obtain rest of retained target compounds.