NEWSTAR C18 Solid Phase Extraction (SPE) columns SPE cartridge 500mg/6mL

NEWSTAR C18 Solid Phase Extraction (SPE) columns SPE cartridge 500mg/6mL

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Place of Origin:: Zhejiang, China

Product name:: C18 (reverse phase) SPE column

Brand:: NEWSTAR

package (pieces/pack):: 30

Application:: Sample pre-treatment

Specification:: 500mg/6mL

Adsorbent:: C18

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Customized support:: NO

Brand Name:: Newstar

Model Number:: NS50C1850006

Place of Origin:: Zhejiang, China

Product name:: C18 (reverse phase) SPE column

Brand:: NEWSTAR

package (pieces/pack):: 30

Application:: Sample pre-treatment

Specification:: 500mg/6mL

Adsorbent:: C18

Solid Phase Extraction (SPE) columns

Solid Phase Extraction (SPE) , is a sample pre-treatment method developed by combining liquid-liquid extraction and liquid chromatography techniques.

Applications: Solid Phase Extraction technology is mainly used for sample pre-treatment of target compounds in various food, agricultural and livestock products, environmental samples, and biological samples.

Principle of Solid Phase Extraction

When a complex sample solution passes through a sorbent, the sorbent selectively retains the target compound (aimed compound) and a small amount of components that have similar properties to the target compound through polar interactions, hydrophobic interactions, or ion exchange interactions. Other components flow out of the column through the sorbent. Then, another solvent system (the solvent of the sorbent with strong affinity for the target compound) is used to selectively elute the target compound, thereby achieving the separation, purification, and enrichment of complex samples.

Non-polar forces (reverse adsorption) are forces between C-H bonds and belong to van der Waals forces, which are relatively weak. Polar forces (normal phase adsorption) are interactions between hydrogen bonds, dipole moments, and π-π interactions, which are stronger than Van der Waals forces but weaker than ion interactions.

Ionic interaction (ionic adsorption) is the Coulombic force between the charged adsorbent and the oppositely charged target compound, which is a strong force.

Structure of SPE cartridges:

Silica Gel-Based Matrix Extraction Column

Reverse phase extraction column (C18)

"NEWSTAR" C18 is a reverse phase solid phase extraction column based on high-purity spherical silica gel with high carbon loading, strong hydrophobicity, and good chemical stability, which has good retention for non-polar compounds.

Adsorbent: C18 Targeted Compounds: Non-polar to moderately polar compounds Sample solution: Water or aqueous solutions containing small amounts of methanol

Applications: Determination of chloramphenicol residues in food, determination of nine types of penicillin residues in livestock and poultry meat, determination of residues of 446 pesticides in fruits and vegetables, and so on.