Globe Scientific
1000 µL PosiStop Pipette Tips, Low-Retention, Graduated, Sterile — 4 Packaging Formats, 1000/Pack | Globe Scientific
1000 µL PosiStop Pipette Tips, Low-Retention, Graduated, Sterile — 4 Packaging Formats, 1000/Pack | Globe Scientific
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1000 µL PosiStop Low-Retention Pipette Tips, Graduated, Sterile — 1000 Tips per Pack
Globe Scientific PosiStop 1000 µL Pipette Tips deliver consistent sealing and low-retention dispensing for demanding bench workflows. The graduated, sterile design suits aqueous reagent transfer, PCR and qPCR setup, and serial dilution where carryover and sample loss must stay minimal.
Technical Specifications
| Product Type | PosiStop low-retention pipette tip |
| Volume/Size | 1000 µL |
| Material | Virgin polypropylene |
| Closure/Cap | Universal-fit tip; PosiStop positive-seal design |
| Graduation | Graduated |
| Sterility | Sterile (all variants) |
| Pack Size | 1000 tips per pack (bulk bag, or 6 × 96 racks/refills per box) |
Available Packagings
| Bulk Bag, Sterile (1000/bag) | 154135S | $51.80 |
| Racked, Sterile (96/rack, 6 racks/box) | 154135RS | $66.00 |
| GreenRack, Sterile (96/rack, 6 racks/box) | 154135ERS | $66.40 |
| Refill, Sterile (96/refill, 6 refills/box) | 154135FS | $43.60 |
Applications
- PCR and qPCR reaction setup requiring minimal sample carryover
- Serial dilution of buffers, standards, and reagents at the 1 mL scale
- Transfer of viscous or protein-rich samples where low retention preserves yield
- Cell culture media and reagent aliquoting under sterile conditions
- Genomics and NGS library prep handling precious nucleic acid samples
- Automated and manual liquid handling for routine clinical and research assays
Quality & Procurement
Globe Scientific PosiStop tips ship from US inventory through labsupplies.com, an authorized Globe Scientific dealer. Bags and boxes carry lot numbers to support traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available on request.
Frequently Asked Questions
Are all four packaging formats sterile?
Yes. The bulk bag, racked, GreenRack, and refill formats are all supplied sterile and graduated at 1000 µL, so you can match packaging to workflow without changing tip specification.
What does the low-retention surface do?
The low-retention polypropylene reduces liquid film clinging to the tip wall, improving recovery of viscous, protein-containing, or detergent-based samples and lowering volume loss across pipetting steps.
What is the GreenRack option?
The GreenRack (154135ERS) is a more material-efficient rack design that holds the same 96 tips per rack across 6 racks per box, supporting sustainability goals while keeping tip performance identical.
How many tips come in each pack?
Every format totals 1000 tips: the bulk bag holds 1000 loose tips, while the racked, GreenRack, and refill boxes each contain six units of 96 tips.
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