Globe Scientific
200 µL PosiStop Pipette Tips, Graduated — Bulk, Racked, GreenRack & Refill, Sterile or Non-Sterile, 1000/Bag & 960/Box | Globe Scientific
200 µL PosiStop Pipette Tips, Graduated — Bulk, Racked, GreenRack & Refill, Sterile or Non-Sterile, 1000/Bag & 960/Box | Globe Scientific
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200 µL PosiStop Graduated Pipette Tips — Bulk, Racked, GreenRack & Refill Formats
Globe Scientific PosiStop 200 µL Pipette Tips deliver a defined positive-stop seat that seats consistently on the pipette shaft, reducing tip-to-tip volume variation across routine pipetting, serial dilutions, and reagent dispensing. Graduated markings support visual volume confirmation at the bench, while multiple formats let labs match throughput and sterility needs without changing tip geometry.
Technical Specifications
| Product Type | PosiStop universal-fit pipette tip |
|---|---|
| Volume/Size | 200 µL |
| Material | Virgin polypropylene |
| Closure/Cap | Open tip with PosiStop positive-stop collar |
| Graduation | Graduated |
| Sterility | Sterile and non-sterile options |
| Pack Size | 1000/bulk bag; 960/box (96/rack or refill × 10) |
Available Packagings
| Packaging | SKU | Price (per pack) |
|---|---|---|
| Bulk Bag, 1000/bag | 154020 | $18.10 |
| Bulk Bag, Sterile, 1000/bag | 154020S | $24.30 |
| Racked, 96/rack, 10 racks/box | 154020R | $67.20 |
| Racked, Sterile, 96/rack, 10 racks/box | 154020RS | $75.10 |
| GreenRack, 96/rack, 10 racks/box | 154020ER | $80.00 |
| GreenRack, Sterile, 96/rack, 10 racks/box | 154020ERS | $88.90 |
| Refill, 96/refill, 10 refills/box | 154020F | $45.20 |
| Refill, Sterile, 96/refill, 10 refills/box | 154020FS | $53.00 |
Applications
- Serial dilutions and standard curve preparation in analytical and QC labs
- Reagent and buffer transfer during ELISA and immunoassay setup
- PCR and qPCR master-mix dispensing with sterile racked tips
- Cell culture media additions requiring sterile, traceable consumables
- High-throughput plating into 96-well microplates from racked formats
- General bench aliquoting and sample prep using economical bulk bags
Quality & Procurement
Sold through labsupplies.com as an authorized Globe Scientific dealer, shipping from US inventory. Each bag, rack, and box carries a lot number to support traceability for CAP-, CLIA-, and ISO 15189-accredited workflows. Institutional and grant-funded tiered pricing is available — contact our team for volume quotes across mixed sterile and non-sterile formats.
Frequently Asked Questions
What does the PosiStop feature do?
PosiStop provides a defined positive-stop collar that seats the tip at a consistent depth on the pipette shaft. This reduces seating variability between tips, improving reproducibility of dispensed volumes during repetitive pipetting.
What is the difference between the Racked and GreenRack formats?
Both supply 96 tips per rack and 10 racks per box. The GreenRack format uses a reduced-plastic rack design intended to lower packaging waste, while delivering the same 200 µL PosiStop tip geometry.
Are the sterile tips certified for nucleic acid work?
Sterile SKUs (154020S, 154020RS, 154020ERS, 154020FS) are provided sterile for sensitive applications such as PCR and cell culture. Confirm specific RNase/DNase and endotoxin claims against the manufacturer's current product documentation.
How are tips sold and priced?
Prices are per pack. Bulk bags contain 1000 tips per bag; racked, GreenRack, and refill SKUs each contain 960 tips per box (96 per rack or refill, 10 per box).
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