Whatman Mini-UniPrep G2 Syringeless Filters

Mini-UniPrep G2 is an all-in-one filter vial with a borosilicate glass chamber. It replaces syringe filters for autosampler-supported UHPLC/HPLC sample preparation with easier handling and fewer consumable components.

• Features an integrated autosampler vial, plunger with attached filter membrane, and septum/cap
• Borosilicate glass vials eliminate plastic-based leachables that can originate from polypropylene vials
• Designed to hold up to 0.5 mL of unfiltered sample that can then be loaded directly into an autosampler
• Easy to see when a sample has been filtered
• Also available, the Whatman Mini-UniPrep in polypropylene format, designed for autosamplers.

Process samples in one-third the time

Mini-UniPrep Syringeless Filters combine a membrane filter, autosampler vial, septum, and plunger into a single device to provide efficient sample filtration for Ultra High Performance Liquid Chromatography (UHPLC)/High Performance Liquid Chromatography (HPLC) analysis.

Minimizes leachables

Excessive leachables contamination from plastic vials can destabilize organic formulations and skew results. Mini-UniPrep G2 from Cytiva features a borosilicate glass chamber, so sample contact with plastic leachables is minimized.

Mini-UniPrep G2 autosampler vials

Once compressed, Mini-Uniprep G2 can be placed into any autosampler that accepts a 12 mm × 32 autosampler vial for injection into your instrument. Alternatively, the septum can be pierced with a needle and the sample drawn off for manual injection into an analyzer.

Simplifying UHPLC/HPLC sample preparation minimizes instrument downtime resulting from use of unfiltered samples.

Specifications:

• Membrane: Nylon
• Pore size: 0.2 µm
• Housing and cap: Borosilicate glass and polypropylene (PP)
• Septa: PTFE coated silicone rubber
• Recommended minimum volume: 220 µL to achieve 50 µL filtered sample
• Max. operating temperature: 50 °C
• Nominal force needed to compress: Approx. 11 kg / 25 lbs
• Dimensions: Equivalent in size to two 12 x 32 mm vials
• Color: Clear