{"product_id":"globe-tip-154105","title":"20 µL Pipette Tips, PosiStop Low-Retention, Sterile Graduated — Bulk Bag, 1000\/Bag | Globe Scientific","description":"\u003ch2\u003ePosiStop 20 µL Low-Retention Sterile Pipette Tips, Graduated — Bulk Bag, 1000\/Bag\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ePosiStop 20 µL Low-Retention Pipette Tip\u003c\/strong\u003e delivers consistent micro-volume dispensing for qPCR setup, nucleic acid extraction, and reagent serial dilutions. Its low-retention surface minimizes sample film, recovering more of every microliter where viscous or protein-rich samples cling to standard polypropylene. Graduation marks aid quick volume confirmation at the bench.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eLow-retention pipette tip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eVolume\/Size\u003c\/th\u003e\n\u003ctd\u003e20 µL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003ePolypropylene, low-retention surface\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eClosure\/Cap\u003c\/th\u003e\n\u003ctd\u003eN\/A (open tip)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eGraduation\u003c\/th\u003e\n\u003ctd\u003eGraduated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003eSterility\u003c\/th\u003e\n\u003ctd\u003eSterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth\u003ePack Size\u003c\/th\u003e\n\u003ctd\u003e1000 tips per bulk bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eAvailable Packagings\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003ePackaging\u003c\/th\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003cth\u003ePrice (per bag)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBulk Bag, Sterile — 1000\/bag\u003c\/td\u003e\n\u003ctd\u003e154105S\u003c\/td\u003e\n\u003ctd\u003e$30.30\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eqPCR and PCR master-mix assembly requiring precise small-volume transfers\u003c\/li\u003e\n\u003cli\u003eNucleic acid and protein sample handling where surface retention skews recovery\u003c\/li\u003e\n\u003cli\u003eSerial dilution preparation for standard curves and assay validation\u003c\/li\u003e\n\u003cli\u003eReagent aliquoting into microplates and microcentrifuge tubes\u003c\/li\u003e\n\u003cli\u003eEnzyme and antibody dispensing where sample conservation matters\u003c\/li\u003e\n\u003cli\u003eGenomics and molecular biology workflows demanding sterile consumables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eGlobe Scientific PosiStop tips ship from US inventory through labsupplies.com, an authorized dealer. Bags carry lot numbers supporting traceability for CAP-, CLIA-, and ISO 15189-accredited laboratories. Institutional and grant-funded tiered pricing is available — contact our procurement team for volume quotes and standing-order arrangements.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat makes these tips low-retention?\u003c\/h3\u003e\n\u003cp\u003eThe tip surface is engineered to reduce liquid adhesion, so viscous, protein-rich, or detergent-containing samples release fully rather than leaving a residual film. This improves recovery and pipetting accuracy at the 20 µL scale.\u003c\/p\u003e\n\u003ch3\u003eAre the tips supplied sterile?\u003c\/h3\u003e\n\u003cp\u003eYes. SKU 154105S is supplied sterile in a bulk bag of 1000 tips, suitable for molecular biology and cell-culture workflows that require contaminant-free consumables.\u003c\/p\u003e\n\u003ch3\u003eAre these tips graduated?\u003c\/h3\u003e\n\u003cp\u003eYes. Graduation marks are molded onto each tip, allowing rapid visual confirmation of aspirated volume directly at the bench.\u003c\/p\u003e\n\u003ch3\u003eHow are these tips sold and tracked?\u003c\/h3\u003e\n\u003cp\u003eTips are sold per bag of 1000. Each bag carries a lot number for traceability, supporting documentation needs in accredited laboratory environments.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"Product\",\n  \"name\": \"PosiStop 20 µL Low-Retention Sterile Pipette Tips, Graduated — Bulk Bag, 1000\/Bag\",\n  \"brand\": { \"@type\": \"Brand\", \"name\": \"Globe Scientific\" },\n  \"sku\": \"154105S\",\n  \"offers\": {\n    \"@type\": \"Offer\",\n    \"priceCurrency\": \"USD\",\n    \"price\": \"30.30\",\n    \"availability\": \"https:\/\/schema.org\/InStock\",\n    \"seller\": { \"@type\": \"Organization\", \"name\": \"labsupplies.com\" }\n  }\n}\n\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"What makes these tips low-retention?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"The tip surface is engineered to reduce liquid adhesion, so viscous, protein-rich, or detergent-containing samples release fully rather than leaving a residual film. This improves recovery and pipetting accuracy at the 20 µL scale.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are the tips supplied sterile?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. SKU 154105S is supplied sterile in a bulk bag of 1000 tips, suitable for molecular biology and cell-culture workflows that require contaminant-free consumables.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are these tips graduated?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Yes. Graduation marks are molded onto each tip, allowing rapid visual confirmation of aspirated volume directly at the bench.\" }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"How are these tips sold and tracked?\",\n      \"acceptedAnswer\": { \"@type\": \"Answer\", \"text\": \"Tips are sold per bag of 1000. 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