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Chromkit
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SiliaPrep SPE cartridges, the range of barrel volumes and sorbent weights.

Supplied new and unopened as a SiliCycle reseller, not as an aftermarket equivalent. Chromkit invoices you in Canadian dollars and the goods ship inside Canada, so there is no customs entry and no exchange rate on your side. Certificates and technical documentation come with the order. If you want to compare this against the sorbent you run now, ask and I will arrange samples before you commit a method to it.

Sample preparation

SiliaPrep SPE Cartridges, Silica-Based, C18 nec (17%)

Non endcapped, so the residual silanols on the silica surface are left available. For a basic analyte that is a second retention mechanism, and sometimes it is the reason a method works at all. It is also why the same method can be hard to reproduce, because silanol activity shifts with the pH of your load solvent and between silica batches. Choose this when you want the mixed retention. If you want hydrophobic retention alone, use the endcapped version.

Sorbent
C18 nec (17%)
Product line
SiliaPrep SPE Cartridges, Silica-Based
Alternative to
Phenomenex Strata C18-U
Particle size
40 - 63 µm
Pore size
60 Å
Condition
new
Price
from CA$166 before tax and shipping. Confirmed on the quote.

Available formats 4 part numbers

Part number Format Per box Price
SPE-R35530B-01C 100 mg, 1 mL 100 CA$246
SPE-R35530B-03G 200 mg, 3 mL 50 CA$166
SPE-R35530B-06P 500 mg, 6 mL 50 CA$253
SPE-R35530B-06S 1 g, 6 mL 50 CA$350

Quote the part number, or tell me the sample and volume and I will tell you which size to run. Prices are per box, before tax and shipping.

Request a quote +1 647-919-3041

Before you order: if the instrument is misbehaving, tell me the symptom, not the part number. Lamps and seals get replaced for problems they did not cause. The first look costs nothing, and if this part is not the fix, I will say so.

How buying works, written for procurement →

More for SiliCycle and similar systems

SiliaPrep SPE cartridges, the range of barrel volumes and sorbent weights.

SiliCycle

SiliaPrepX SPE Cartridges, Polymer-Based, HLB

A water wettable polymer, so the bed does not dewet if the cartridge runs dry. That is the commonest reason a silica C18 extraction loses recovery halfway through a batch, and it is the single practical argument for a polymeric sorbent. HLB retains acids, bases and neutrals together, so it is the first choice when you are screening or when the analyte list is mixed. That breadth is also its limit. It holds matrix as readily as it holds analyte, so if you are fighting ion suppression in LC-MS, an ion exchange or mixed mode sorbent will give you a cleaner extract than this one.

Sorbent
HLB
Product line
SiliaPrepX SPE Cartridges, Polymer-Based
Alternative to
Waters Oasis HLB
Particle size
40 µm

CA$202

Enquire

Request a quote
SiliaPrep SPE cartridges, the range of barrel volumes and sorbent weights.

SiliCycle

SiliaPrepX SPE Cartridges, Polymer-Based, SAX

Strong anion exchange on a polymer backing. The exchange sites stay charged across the working pH range, so retention of an acidic analyte does not drift with load pH the way it can on a weak exchanger. Use it when reversed phase alone leaves the extract too dirty and the analyte carries a negative charge you can work with. It will not hold neutrals or bases. If your analyte list is mixed, run HLB, or run this as a second step after a reversed phase cleanup.

Sorbent
SAX
Product line
SiliaPrepX SPE Cartridges, Polymer-Based
Alternative to
Waters Oasis MAX
Particle size
85 µm

CA$172

Enquire

Request a quote
SiliaPrep SPE cartridges, the range of barrel volumes and sorbent weights.

SiliCycle

SiliaPrepX SPE Cartridges, Polymer-Based, SCX

Strong cation exchange on a polymer backing, for basic analytes. Load at a pH where the base is protonated and it is held by charge rather than by hydrophobicity, which means you can wash with organic solvent hard enough to strip most of the matrix without losing the analyte. Elution needs base in the solvent. It will not retain acids or neutrals, and for a permanently charged base such as a quaternary amine it can hold too well to elute cleanly, which is what the weak exchanger is for.

Sorbent
SCX
Product line
SiliaPrepX SPE Cartridges, Polymer-Based
Alternative to
Waters Oasis MCX
Particle size
85 µm

CA$169

Enquire

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SiliaPrep SPE cartridges, the range of barrel volumes and sorbent weights.

SiliCycle

SiliaPrepX SPE Cartridges, Polymer-Based, WCX

Weak cation exchange, a carboxylic acid on a polymer. It exists for the analytes that strong cation exchange holds too tightly. A quaternary amine or another permanently charged base comes off a weak exchanger with a change of pH instead of a harsh solvent, so recovery improves and the extract stays cleaner. For a weakly basic analyte it does the opposite and barely retains at all. Check the pKa of your compound before choosing between this and the strong exchanger.

Sorbent
WCX
Product line
SiliaPrepX SPE Cartridges, Polymer-Based
Alternative to
Waters Oasis WCX
Particle size
85 µm

CA$169

Enquire

Request a quote