Skip to Content
MilliporeSigma
All Photos(4)

Documents

WHAUN203NPENYL

Whatman® Mini-UniPrep® syringeless filters

Nylon, 0.2 μm, 100/pk

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
40161807
NACRES:
NB.24

material

Nylon membrane
PTFE septa (PTFE coated silicone rubber)
polypropylene housing

sterility

non-sterile

usage

aqueous/organic samples in 3 to 10 pH range

feature

cap (Septa)
graduations: no
(equivalent in size to 12 x 32 mm vials)
nominal force to compress: approximately 18 lb / 8.2 kg

packaging

pkg of 100 ea

manufacturer/tradename

Whatman Article No. 28421668 (US reference)
Whatman UN203NPENYL

filter capacity

400 μL

pore size

0.2 μm

suitability

suitable for (routine HPLC/UHPLC analysis, protein precipitation, solubility testing; sample filteration)

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

Combine sample preparation steps for analytical HPLC and UHPLC and reduce plastic waste significantly. Skip to the good bit with 4-in-1 Mini-UniPrep® syringeless filters.

Transform your HPLC and UHPLC sample preparation with our Mini-UniPrep® syringeless filters. These filters combine four steps into one to offer a fast, efficient, and environmentally friendly solution to sample filtration prior to chromatography.

Chromatography sample preparation steps traditionally involve multiple consumables like syringe filters, vials, and septa, which increases costs and time required for sample filtration. Mini-UniPrep® syringeless filters eliminate the need for these separate disposable components and prepare samples in one-third the time required by other methods used for high performance liquid chromatography.

By excluding large particles from a chromatography sample, the time required to process the mobile phase is shortened and HPLC column life is extended by reducing contamination that causes clogging and back pressure build up.

Mini-UniPrep® syringeless filters can be used either manually or with a multicompressor. The multicompressor allows for processing of multiple filtration samples, further reducing sample preparation time for chromatographic analysis.

Using the Mini-UniPrep® syringeless filter is easy. If you are not using a multicompressor, simply place your sample in the Mini-UniPrep® device, insert the plunger, and compress. Your sample is filtered rapidly and easily. The unique design allows the liquid sample to be forced into the reservoir of the plunger. Any excess air escapes though the vent hole until the seal is engaged. The Mini-UniPrep® syringeless filter can then be used in an autosampler.

Application

Applications:
  • Routine HPLC/UHPLC analysis
  • Composite assays
  • Content uniformity
  • Protein precipitation
  • Solubility testing
  • Dissolution testing
  • Sample filtration

Features and Benefits

  • All-in-one filtration device for quick and cost-effective chromatography sample processing
  • Eliminates the need for separate syringes, syringe membrane filters, vials, and septa
  • Designed for use with an UHPLC or HPLC autosampler for high-throughput analysis
  • 0.2 µm and 0.45 µm filter pore sizes available to meet filtration sample requirements
  • Compatible with most major autosamplers
  • Housing options: amber to prevent photodegradation of light-sensitive samples, or translucent for easy visual inspection made from polypropylene (PP) material
  • Recyclable after use.

Legal Information

Mini-UniPrep is a registered trademark of Cytiva
Whatman is a registered trademark of Cytiva

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Related Content

FAS, or 'forever chemicals,' persist in the environment and pose risks to human health. Discover our environmental monitoring tools for PFAS quantification, aiding researchers, regulators, and labs in testing for PFAS.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service