Product Description
The Axygen® MRF-200NX-R-S is a 200 µL NX filtered sterile pipette tip — racked in hinged racks of 96 tips, 960 tips per pack, 4,800 tips per case (5 packs of 5 racks). Designed for the Axygen® MultiRack pipette tip system. Axygen® MultiRack Filter Tips employ an inert, hydrophobic barrier to prevent contamination from pipettors. The filter materials, containing no leachable additive with less than 20-micron pore sizes, effectively block aerosols without the risk of contaminating the precious sample with additives. 1–200 µL working range. Sterile. Not autoclavable. Yellow deck for easy visual identification. Catalog # MRF-200NX-R-S.
MRF-200NX-R-S — Decoding the Catalog Number
| Code | Meaning |
|---|---|
| MRF | MultiRack Filter tip |
| 200 | 200 µL maximum volume |
| NX | NX filter tip geometry — universal-fit tapered profile |
| R | Racked |
| S | Sterile |
MRF-200NX-R-S vs. MRF-100-R-S — 200 µL vs. 100 µL Filtered Sterile:
| MRF-200NX-R-S | MRF-100-R-S | |
|---|---|---|
| Volume | 200 µL (1–200 µL) | 100 µL (1–100 µL) |
| Filter Type | NX | Standard |
| Sterile | Yes | Yes |
| Tips/Case | 4,800 | 4,800 |
| Deck Color | Yellow | Yellow |
| Best For | Standard 200 µL transfers, PCR, general lab | Standard 100 µL transfers, PCR, general lab |
MRF-200NX-R-S vs. MRF-200NX-L-R-S — Without vs. With MaxRecovery+™:
| MRF-200NX-R-S | MRF-200NX-L-R-S | |
|---|---|---|
| Surface | Standard polypropylene | MaxRecovery+™ low retention |
| Volume | 200 µL | 200 µL |
| Filter | NX | NX |
| Sterile | Yes | Yes |
| Best For | Standard 200 µL liquid handling | Low-concentration DNA, viscous liquids, maximum recovery |
MRF-200NX-R-S vs. MR-200NX-R-S — Filtered vs. Unfiltered:
| MRF-200NX-R-S | MR-200NX-R-S | |
|---|---|---|
| Filter | ✅ Yes — NX aerosol barrier | ❌ No filter |
| Volume | 200 µL | 200 µL |
| Sterile | Yes | Yes |
| Best For | PCR, RNA work, sensitive molecular biology | General liquid handling — no aerosol protection needed |
NX Filter Tip Geometry — Universal Fit at 200 µL Scale The "NX" designation in the MRF-200NX-R-S catalog number identifies the tip geometry as the universal-fit NX profile — a tapered tip geometry designed for broad compatibility across all major 200 µL pipette brands. The NX tip geometry provides reliable, airtight seating on all standard 200 µL pipette cones from Eppendorf, Rainin, Thermo Fisher, Gilson, Hamilton, and other major manufacturers without requiring brand-matched tips. The inert hydrophobic aerosol barrier filter of the NX tip contains no leachable additives, effectively blocks aerosols with less than 20-micron pore sizes, and does not contaminate the sample with filter-derived additives.
200 µL — A Core Working Volume for Molecular Biology The 200 µL capacity of the MRF-200NX-R-S covers one of the most widely used volumes in molecular biology — accommodating standard PCR reaction volumes up to 200 µL, standard sequencing reaction volumes, ELISA sample and reagent addition, RNA and DNA quantification, standard microplate well volumes, and the broad range of 1–200 µL liquid handling steps that represent the majority of daily pipetting in a molecular biology laboratory. The 1–200 µL working range covers essentially all applications at this scale in a single tip format.
Aerosol Barrier Filter — Cross-Contamination Protection at 200 µL Scale The inert hydrophobic filter barrier of the MRF-200NX-R-S prevents aerosols and liquid carry-over from entering the pipettor barrel — protecting both the sample and the pipettor from cross-contamination at 200 µL scale. With less than 20-micron pore sizes and no leachable additives, the filter provides reliable aerosol protection for sensitive PCR, RT-PCR, RNA, and sequencing workflows where sample-to-sample aerosol contamination at 200 µL volumes would compromise results.
Hinged Rack Packaging — 96 Tips per Rack, 5 Racks per Pack Supplied in hinged racks of 96 tips — the standard rack format for the Axygen® MultiRack system. 960 tips per pack (5 racks of 96), 5 packs per case — 4,800 tips per case total. The yellow deck color provides easy visual identification of the 200 µL tip format within mixed-volume tip rack inventories — consistent with the universal yellow color coding for 200 µL pipette tips.
Key Features
- Axygen® MultiRack Pipette Tips — Catalog # MRF-200NX-R-S
- 200 µL maximum volume, 1–200 µL working range
- NX filter tip geometry — universal-fit tapered profile
- Aerosol barrier filter — inert hydrophobic material, <20 µm pore size, no leachable additives
- Standard polypropylene surface (MaxRecovery+ version: MRF-200NX-L-R-S)
- Sterile
- Not autoclavable
- Hinged rack packaging — 96 tips per rack
- 960 tips per pack (5 racks), 5 packs per case — 4,800 tips per case total
- Yellow deck color — standard 200 µL tip identification
- Unfiltered version: MR-200NX-R-S
Supported Applications PCR and RT-PCR reaction setup at 200 µL volume, qPCR master mix preparation, RNA and DNA quantification and handling, ELISA sample and reagent addition, sequencing reaction preparation, standard microplate liquid handling at 200 µL scale, serial dilution and compound preparation, cell culture reagent addition, biochemistry and enzyme assay setup, and any application requiring aerosol-protected sterile 200 µL tips with universal-fit NX geometry.
Technical Specifications
| Specification | Value |
|---|---|
| Catalog # | MRF-200NX-R-S |
| Brand | Axygen® |
| Maximum Volume | 200 µL |
| Volume Range | 1–200 µL |
| Filter Type | NX — inert hydrophobic aerosol barrier, <20 µm pore size |
| Surface | Standard polypropylene |
| Sterile | Yes |
| Autoclavable | No |
| Packaging | Hinged Rack |
| Tips per Rack | 96 |
| Tips per Pack | 960 (5 racks) |
| Packs per Case | 5 |
| Tips per Case | 4,800 |
| Deck Color | Yellow |
| Unfiltered Version | MR-200NX-R-S |
| MaxRecovery+ Version | MRF-200NX-L-R-S |