Solid Phase Extraction Spe

B&M® MCX is a reversed-phase and cation-exchange composite "water-wet" polymer adsorbent with cation exchange and reversed-phase adsorption modes and good water wettability. The matrix is pure, stable in the pH range of 0-14, stable in organic solvents, has a high specific surface area, high exchange capacity, high selectivity and sensitivity to basic compounds, and is especially suitable for the detection of melamine in milk, food and feed.

It is equivalent to Waters' Oasis MCX and Varian's Plexa PCX.

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

The B&M® C8/SCX is a silica gel-based packing column with C8 and strong cation exchange SCX (C8/SCX) mixed in an optimal ratio to provide a dual containment mechanism in which the C8 functional group interacts with the hydrophobic analyte groups and the SCX functional group interacts with the protonated amino group. Due to such strong interactions, stronger wash conditions can be used to remove co-extracts that may interfere with UV detection or cause ion suppression in LC-MS. The steady-state phase is not capped, allowing for additional interactions between the residual silanol groups and the polar analytes, thereby contributing to improved retention.
Most suitable for purification of basic (cationic) or neutral compounds such as drugs and metabolites from aqueous solutions, urine and blood.                                                                                                            
Equivalent to Agilent Bond Elut Certify and Phenomenex

B&M® C8/SAX are C8 silica gel and strong anion exchange (SAX) (C8/SAX) extraction columns best suited for purifying acidic (cationic) or neutral compounds such as narcotics and metabolites from aqueous solutions, urine and blood.  
                                                                                       
Equivalent to Agilent Bond Elut Certify and Phenomenex Screen-A.

B&M® Silica is a polar extraction column with unbound silica gel as an adsorbent. It is slightly acidic and has a strong polarity. It is used to separate non-polar, slightly polar compounds, oils, fats, etc., especially substances with a similar structure. 

Equivalent to Agilent Bond Elut Silica and Waters Sep-Pak Silica.

B&M®  SCX - это сильная катионообменная экстракционная колонка на основе силикагеля, связанного с функциональными группами фенилсульфокислоты. Она используется для экстракции органических оснований или обессоливания биомолекул.

Часто смешивается с C18 для экстракции органических оснований, таких как органические основания, антимикробные препараты, лекарства, аминокислоты, катехолы, гербициды, поверхностно-активные вещества и так далее.

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

B&M® SAX is a strong anion exchange extraction column based on silica gel bound to quaternary ammonium functional groups. It is mainly used to extract 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® PRS is a silica gel-based strong cation exchange extraction column, PRS is bonded by a functional group of propyl sulfonic acid, slightly less acidic than SCX, with a unique selection of new 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® PSA is a silica gel-based ethylenediamine-N-propyl extraction column, PSA contains two amines whose pKa is 10.1 and 10.9, respectively. Its selectivity is similar to amines, and it can be used as a normal or reversed-phase column, with a stronger polarity than C18 and a weaker polarity than silica gel, and it has good selectivity for different compounds of medium polarity or a wider polarity range in different systems.

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

Equivalent to Agilent Bond Elut PSA.

B&M® PRS is a silica gel-based strong cation exchange extraction column, PRS is linked by a functional group of propyl sulfonic acid, slightly less acidic than SCX, with a unique selection of new, 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.

The B&M® NH2 (amino) is a silica gel-based aminopropyl extraction column. It has a polar steady-state phase and a weak anion exchanger, and can achieve retention by weak anion exchange (aqueous solutions) or polar adsorption (non-polar organic solutions), thus fulfilling a dual role. When used in non-polar solutions (e.g., hexane) for pretreatment, it can form hydrogen bonds with molecules with functional groups -OH, -NH, or -SH, aminopropyl PKa=9.8; it is weaker than SAX with anions, and it can be used as a weak anion exchanger to remove strong anions such as sulfonate from samples in aqueous solutions with pH<7.8.
The aminopropyl bound phase has strong polar adsorption in nonpolar organic solutions and weak anion exchange retention in aqueous solutions. NH2 works well in a wide range of sample matrices and can be used in the food, environmental, pharmaceutical, and medical industries.

B&M® Diol is a silica gel-based extraction column with separation properties similar to silica gel. It extracts polar samples from nonpolar solutions through polar interaction, is similar to silica gel without bonds in the nature of the interaction of hydrogen bonds with the sample, and can distinguish structurally similar compounds such as structural isomers, as well as silica gel columns. It can also be used to isolate nonpolar compounds, since carbon chains in the bound phase provide sufficient nonpolar force to hold hydrophobic samples, and has a different selectivity with respect to silica gel with respect to solvent ratios.  Diol is commonly used to isolate drugs or metabolites, such as THC, from biological solutions, such as urine samples. It is equivalent to Agilent Bond Elut 2OH and Waters Sep-Pak Diol.