S*Pure / Maxi-Clean

Maxi-Clean

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Maxi-Clean cartridges are an alternative format for SPE. The materials are the same as the Extract-Clean cartridges, but with a polypropylene housing with both a female luer inlet and a male luer outlet tip. This enables the use of positive pressure by syringe or negative pressure by vacuum manifold.

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Technical Data

Maxi-Clean Aminopropyl (NH2): Ideal for carbohydrates or generally with analyses containing hydroxyl functional groups

Maxi-Clean Florisil (FL): Referenced in many EPA methods; ideally suited for pesticides and metals

Maxi-Clean Florisil-PR (FL-PR): Ensures most inert batches for highly active compounds

Maxi-Clean Alumina Acidic (AL-A): Increase capacity for acidic compounds

Maxi-Clean IC-OH: Exchanges anions for hydroxide; may be used to remove or concentrate anions from samples and to increase pH of acidic samples; removes cations that form insoluble hydroxide salts

Maxi-Clean IC-H: Exchanges cations for hydrogen; may be used to remove or concentrate cations from samples and to reduce pH of basic samples

Maxi-Clean IC-Ag: Removes excess halides through formation of Ag-halide salts

Maxi-Clean IC-Ba: Removes excess sulfate through formation of BaSO4

Maxi-Clean IC-Na: Exchanges cations for sodium, may be used to remove or retain cations from sample without changing the pH of the sample

Maxi-Clean Chelate: Exchanges transition metals and divalent cations for sodium; may be used to remove or retain divalent cations and transition metals from sample

Maxi-Clean IC-RP: Removes surfactants, organic acids and other organic substrates; inorganic ions pass through

Reversed Phase

Phase	Particle size	Pore size	Carbon content	Endcapped	Features
Prevail C18	50 µm	60 Å	11 %C	+	100% water wettable
Standard C18	50 µm	60 Å	6 %C	+	Low carbon load
High-Capacity C18	50 µm	60 Å	17 %C	+	High carbon load
Large Pore C18	50 µm	150 Å	14 %C	+	Ideal for compounds > 1500 MW
Octyl (C8)	50 µm	60 Å	4.5 %C	+	Less retention than C18
Ethyl (C2)	50 µm	100 Å	5.5 %C	+	Less retention than C8

Normal Phase

Phase	Material	Particle size	Pore size	Carbon content	Endcapped	Features
Silica (Si)	Silica	50 µm	60 Å	N/A	N/A	Highly polar surface
Aminopropyl (NH2)	Silica	50 µm	60 Å	5.0 %C	-	Polar phase with slight anion exchange properties
Cyanopropyl (CN)	Silica	50 µm	60 Å	6.0 %C	+	Unique selectivity
Florisil (FL)	Magnesium Silicate	75-150 µm	60 Å	N/A	N/A	Highly polar surface
Florisil (FL-PR)	Magnesium Silicate	75-150 µm	60 Å	N/A	N/A	Specifically tested for chlorinated pesticides
Aluminia Acidic (AL-A)	Aluminium Oxide	130 µm	100 Å	N/A	N/A	Alumina washed with acid surface

Ion Exchange

Phase	Modification	Material	Counter Ion	Particle size	Exchange capacity	Retains
SCX	Benzene Sulfonic acid	Styrene-DVB	Hydrogen	50 µm	2.0 meq/mL	Cations
SAX	Tetramethyl Ammonium	Styrene-DVB	Acetate	50 µm	1.0 meq/mL	Anions

Ion Chromatography

Phase	Material	Counter Ion	Particle size	Exchange capacity	Molecular exclusion limit	Retains
IC-OH	Styrene-DVB	Hydroxide	50 µm	1.0 meq/mL	1.000 Da	Anions
IC-H	Styrene-DVB	Hydronium	50 µm	2.0 meq/mL	1.000 Da	Cations
IC-Ag	Styrene-DVB	Silver	50 µm	2.0 meq/mL	1.000 Da	Chloride, Iodide, Bromide
IC-Ba	Styrene-DVB	Barium	50 µm	2.0 meq/mL	1.000 Da	Sulfate
IC-Na	Styrene-DVB	Sodium	50 µm	2.0 meq/mL	1.000 Da	Cations
IC-Chelate	Styrene-DVB	Sodium	50 µm	0.4 meq/mL	1.000 Da	Polyvalent metal ions
IC-RP	Polystyrene	N/A	50 µm	N/A	N/A	Hydrophobic components