Products

B&M® MAX is a reversed-phase and strong anion exchange complex "water-wet" polymer adsorbent. Its matrix consists of N-vinylpyrrolidone and divinylbenzene polymerized in a certain ratio (HLB), and then the quaternary ammonium group (CH2N(CH3)2C4H9+) is attached to the HLB, which provides two adsorption modes: anion exchange and reversed-phase adsorption, stable in the pH range of 0-14 and has good water wettability. It has high selectivity and sensitivity to acid compounds and can overcome the limitations of traditional hybrid adsorbents for silica gel matrix-based solid-phase extraction.

Hopes MAX equivalent

B&M® HLB is a Tip SPE based on N-vinylpyrrolidone and divinylbenzene with hydrophilic and hydrophobic groups on the surface, which provides balanced adsorption of a wide range of polar and non-polar compounds and high adsorption capacity, even when the adsorbent runs out after balancing. This means that very high sensitivity can be achieved with a simple method. The matrix is clean, stable in the pH range of 0-14, stable in a wide range of organic solvents and has a high adsorption capacity (3-10 times higher than that of C18). It is mainly used for the extraction of complex biological samples (e.g., blood, plasma, acidic, neutral, or basic drugs in body fluids).

Equivalent to Waters Oasis HLB.

B&M® Silica is a polar Tip SPE with unbound silica as an adsorbent, slightly acidic and highly polar. It is used to separate non-polar and slightly polar compounds, oils and fats, especially similar in structure.                                                                                                              
Equivalent to Agilent Bond Elut Silica and Waters Sep-Pak Silica.

B&M® SCX is a highly cationized silica gel-based Tip SPE with phenylsulfonic acid functional groups. It is used for the extraction of organic bases or the desalination of biomolecules.
Often mixed with C18 to extract organic bases such as organic bases, antimicrobials, pharmaceuticals, amino acids, catechols, herbicides, surfactants, etc.

Equivalent to Supelco Supelclean LC-SCX, Agilent Bond Elut SCX, SampliQ Si-SCX.

B&M® SAX is a silica gel-based strongly anion exchange Tip SPE bound to quaternary ammonium functional groups. It is mainly used for the extraction of weak-anionic compounds such as carboxylic acids. This strong anion exchanger can be used to extract negatively charged compounds from aqueous and non-aqueous solutions and is especially suitable for the extraction of weak acids. It is usually used to remove strong anions from samples (organic acids, nucleotides, nucleic acids, sulfonates, inorganic salt ions, etc.), desalination of biomolecules, etc.

Equivalent to Supelco Supelclean LC-SAX, Agilent Bond Elut SAX, SampliQ Si-SAX.

B&M® PSA is a silica gel-based tip SPE with ethylenediamine-N-propyl, PSA contains two amines with pKa 10.1 and 10.9. Its selectivity is similar to that of amines, and it can be used as a conventional or reversed-phase column, with a polarity that is stronger than that of C18 and weaker than that of silica gel, and has good selectivity for various compounds of medium polarity or a wide range of polarities over a wide range of systems.

PSA can chelate with metal ions, used to extract metal ions. It is widely used in sample pre-treatment for the analysis of pesticide residues as well as organic acids, pigments, metal ions and phenols.  

B&M® PRS is a silica gel based tip SPE for strong cation exchange, PRS is bound to the functional group of propyl sulfonic acid, slightly less acidic than SCX, with unique selective novelty for the extraction of weak cations such as pyridine, etc., with high recovery, widely used in the pre-treatment of malachite green samples. 
                                                                                       
Equivalent to Agilent Bond Elut PRS.

B&M® Carb-GCB/PSA bilayer SPE composite columns provide GCB/NH2-like retention capacity for sample cleaning in multi-residue pesticide analyses. PSA has an additional secondary amine group, resulting in a higher ion exchange capacity, and acts as a complexing ligand for some metal ions, providing a different selectivity from GCB/NH2.

Equivalent to Waters Sep Black/PSA.

The B&M® Carb-GCB/NH2 (Graphitized Carbon Black/Amino) double-layer column combines the advantages of GCB and NH2, removes interfering components such as color, sterols and fatty acids, and is very suitable for the determination of pesticide multi-residues in food (vegetables, fruits, meat, etc.), especially for the determination of pesticides included in the Japanese positive list.

Equivalent to Waters Sep-Pak Carbon Black/Amino.

B&M® Coconut Shell Activated Carbon SPE is a high-quality activated carbon produced from coconut shell, which is a kind of crushed carbon with irregular particles, high strength, high adsorption capacity and low resistance.

B&M® Polyamide columns are used to extract tannins, chlorophylls, humic acids, pharmacologically active terpenoids, flavonoids, gallic acid, catechol A, protocatechuic acid, and resorcinol from aqueous or methanol solutions in a reversed-phase mechanism with a strong hydrogen bond between the compound's hydroxyl group and the resin's amide group. It is also used for the extraction of aromatic carboxylic acids and nitroaromatic compounds with irreversible benzoquinone retention.

B&M® Florisil is an adsorbent of Florisil-MgO-SiO2 bound to silica gel magnesium oxide, which consists of three main components: silicon dioxide (84%), magnesium oxide (15.5%) and sodium sulfate (0.5%).
Similar to silica gel, this adsorbent is highly polar, highly reactive and weakly basic for the extraction of polar compounds from non-polar solutions and is used for the adsorption of weakly and moderately polar compounds from non-aqueous solutions. The large particle size in the Florisil package allows for faster processing of large sample volumes and can therefore be used in place of silica gel mini-columns when the samples have high viscosity.

In addition, Florisil can be used in place of alumina products in alumina columns when Lewis acid, which is part of the alumina, interferes with extraction.