Laboratory insights, guides & resources
Practical information to help you evaluate products, understand applications, and make informed laboratory decisions.
Selection guide
How to choose a membrane filter
A start-here framework: material, pore size, diameter, and sterility, in that order.
Selection guide
Syringe filter selection guide
Membrane material, pore size, diameter, housing, and single- vs. multilayer construction.
Selection guide
Membrane material selection
Compare PES, PTFE, nylon, PCTE, and glass microfiber by chemical compatibility, binding, and typical use.
Selection guide
PTFE vs. nylon vs. PES vs. PVDF
A direct, side-by-side comparison of the four most common membrane materials.
Selection guide
Nylon vs. PTFE syringe filters
Which is better for your sample—a direct comparison of compatibility, binding, and cost.
Selection guide
Hydrophilic vs. hydrophobic membranes
Which one should you use, and why the wrong choice means your sample won't pass at all.
Selection guide
Glass microfiber filters
High-capacity prefiltration and clarification, and its trade-offs versus membrane.
Material guide
Meltblown polypropylene filters
How meltblown media is made, why it's used for depth filtration, and where it fits in a filtration train.
Material guide
Filter housing materials
Polypropylene, polycarbonate, and stainless steel compared.
Selection guide
Filter paper grades
Qualitative, quantitative, and technical grades—what each is built for.
Selection guide
Pore size and diameter selection
Separate pore rating, physical diameter, support requirements, and workflow constraints.
Selection guide
Filter diameter selection guide
13mm, 25mm, 47mm and larger—when each format makes sense.
Selection guide
When you need a multilayer syringe filter
What the extra prefiltration layer adds, and when it's worth it.
Selection guide
How to choose a capsule filter
Capsule vs. syringe filters, sizing by flow rate, connections, and single-use workflow considerations.
Selection guide
Vacuum filtration: bottle-top vs. standalone
How vacuum filtration works, when to use each format, and what actually drives throughput.
Selection guide
Sterile vs. non-sterile filters
When sterility is a real requirement, and when it isn't.
Selection guide
Track-etched vs. depth filtration
Choosing the right filtration mechanism for the job.
Selection guide
How to read a filter part number
Decode material, pore size, diameter, and pack size from the name.
Troubleshooting guide
Laboratory filtration troubleshooting
Ten common problems—slow flow, clogging, analyte loss—and their practical fixes.
Troubleshooting guide
5 signs you’re using the wrong filter
Slow flow, clogging, analyte loss, compatibility issues, and contamination.
Troubleshooting guide
How to prevent filter clogging
Prefiltration, pore size, sample prep, and membrane selection to stop clogging before it starts.
Troubleshooting guide
7 filtration mistakes that affect results
Common, avoidable mistakes that can quietly skew your data.
Workflow guide
Sample preparation: why filtration matters
Why a filtration step before analysis protects both results and instruments.
Selection guide
Membrane selection for HPLC & GC sample prep
Avoiding extractables and analyte loss ahead of injection.
Workflow guide
Chromatography sample prep: SPE workflow
A practical solid phase extraction workflow and where filtration fits in.
Selection guide
SPE cartridges: a practical introduction
Sorbent chemistries and how to pick a starting point.
Workflow guide
Microbiology filtration workflow
The membrane, media, and documentation decisions across a standard microbiology workflow.
Educational guide
What is microbiological filtration?
What it is, how it's used to recover and count organisms, and who relies on it.
Selection guide
Environmental & water testing filtration
A buyer's overview from sample prep to microbiological analysis.
Selection guide
Sterile filtration for pharma & biotech
Membrane selection, pore size, sterility, and workflow considerations.
Workflow guide
Build a more efficient filtration workflow
Reducing unnecessary steps, consumable waste, and rework.
Evidence guide
PFAS-free laboratory products: what to know
What the category covers, who needs it, and how to evaluate a claim.
Evidence guide
Reading PFAS product evidence
What a source-designated PFAS-free claim does and doesn't mean.
Selection guide
PFAS-free labware
What it covers and when you actually need it.
Selection guide
Choosing PFAS-free pipette tips
Fit, volume range, filter options, and evidence scope.
Workflow guide
Reduce PFAS background contamination
Practical steps beyond just choosing PFAS-free consumables.
Selection guide
Consumables for PFAS testing
Beyond filters: sample-contact materials and contamination risks.
Quick answer
What filter should I use for HPLC?
A direct answer: material, pore size, and format.
Quick answer
What filter should I use for aqueous samples?
Hydrophilic membrane options and pore size guidance.
Quick answer
What filter should I use for organic solvents?
PTFE vs. nylon compatibility for solvent-based samples.
Quick answer
What filter should I use for cell culture media?
Sterile PES at 0.22 µm, and why sterility isn't optional here.
Quick answer
What filter should I use for bacterial analysis?
MCE and PCTE membranes for microbiological recovery.
Quick answer
What filter should I use for water quality testing?
Prefiltration, microbiological membranes, and PFAS-free considerations.
Quick answer
What filter should I use for protein samples?
Low-binding PVDF and PES to avoid losing analyte.
Quick answer
What filter should I use for sample preparation?
A general-purpose answer for standard analytical prep.
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