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 dis pensing 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. 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. { "@context": "https://schema.org", "@type": "Product", "name": "Globe Scientific PosiStop 1000 µL Low-Retention Pipette Tips, Graduated, Sterile", "brand": { "@type": "Brand", "name": "Globe Scientific" }, "description": "1000 µL PosiStop low-retention, graduated, sterile pipette tips in bulk bag, racked, GreenRack, and refill formats. 1000 tips per pack.", "sku": [ "154135S", "154135RS", "154135ERS", "154135FS" ], "offers": { "@type": "AggregateOffer", "priceCurrency": "USD", "lowPrice": "43.60", "highPrice": "66.40", "offerCount": 4 } } { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Are all four packaging formats sterile?", "acceptedAnswer": { "@type": "Answer", "text": "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." } }, { "@type": "Question", "name": "What does the low-retention surface do?", "acceptedAnswer": { "@type": "Answer", "text": "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." } }, { "@type": "Question", "name": "What is the GreenRack option?", "acceptedAnswer": { "@type": "Answer", "text": "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." } }, { "@type": "Question", "name": "How many tips come in each pack?", "acceptedAnswer": { "@type": "Answer", "text": "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." } } ] } Show more