{"product_id":"agilent-5188-5321-glass-tube-inserts-350-ul","title":"Agilent 5188-5321 Glass Tube Inserts 350 ul Total of 800 Tubes","description":"\u003ch3\u003eAgilent Technologies 350 microliter Glass Microtube Inserts for 96-Well Microplates – High-Clarity Borosilicate Glass, Flat-Bottom Well Liner, Micro-Sampling (MPN: 5188-5321)\u003c\/h3\u003e\n\u003cp\u003eThe Agilent Technologies 5188-5321 (also cataloged as 51885321 or Agilent P\/N 5188-5321) is a high-purity, inert 350 microliter glass tube insert designed specifically for integration with 96-well microplate platforms (such as Agilent assembly 5065-4402). Precision-molded from high-clarity Type I borosilicate glass, these micro-inserts convert standard polypropylene well plates into inert glass-lined analytical vessels. This prevents active compound adsorption, plasticizer leaching, and organic solvent interaction during high-throughput screening, HPLC, LC-MS, and GC autosampler runs. Engineered with a flat-bottom inner well profile, each 350 microliter tube maximizes volumetric capacity while providing a stable, uniform surface for needle aspiration in automated liquid handling and high-throughput chromatography systems.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Performance and Structural Design\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eInert Type I Borosilicate Glass Construction:\u003c\/b\u003e Fabricated from low-extractable borosilicate glass to eliminate sample-to-plastic interactions, preventing analyte loss due to non-specific surface adsorption or solvent-induced leaching of plastic additives.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003e96-Well Plate Integration Geometry:\u003c\/b\u003e Dimensions are engineered specifically to fit inside deep-well microplate cavities, transforming 96-well polypropylene plates into chemically inert glass micro-vial arrays.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eFlat-Bottom Micro-Sampling Reservoir:\u003c\/b\u003e Features a precision flat bottom that maximizes usable internal working volume up to 350 microliters while allowing autosampler needles to draw low-volume samples cleanly without bottom collision risks.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh-Throughput Autosampler Compatibility:\u003c\/b\u003e Optimized for seamless operation inside Agilent 1100, 1200, 1260, and 1290 Infinity Series HPLC\/LC-MS autosamplers and fraction collectors configured for well plate sampling.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eProduct Specifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePart Number \/ MPN:\u003c\/b\u003e 5188-5321 (Cross-listed as 51885321 \/ Agilent 5188-5321)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eManufacturer \/ Brand:\u003c\/b\u003e Agilent Technologies\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eComponent Classification:\u003c\/b\u003e Glass Microtube Inserts for 96-Well Plates (Not for standard 2 mL autosampler vials)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eNominal Volumetric Capacity:\u003c\/b\u003e 350 microliters (0.35 mL)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eMaterial Composition:\u003c\/b\u003e Ultra-Clear Type I Borosilicate Glass\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eBase \/ Well Bottom Geometry:\u003c\/b\u003e Flat Bottom\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eSystem Interoperability:\u003c\/b\u003e Fits 96-well plate assemblies (such as Agilent 5065-4402) and uses matching cap\/septa mats (Agilent 5188-5322)\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003ePackaging Standard:\u003c\/b\u003e Bulk pack of 960 (or 1000) individual glass inserts per package\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Benefits and Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eHigh-Throughput LC-MS \u0026amp; HPLC Bioanalysis:\u003c\/b\u003e The gold standard choice for bioanalytical CROs and pharmaceutical research labs running aggressive organic solvents (such as DCM, chloroform, or DMSO) that would degrade standard plastic microplates.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eTrace Analyte \u0026amp; Small Molecule Recovery:\u003c\/b\u003e Prevents hydrophobic drug candidates, steroids, and active pharmaceutical ingredients (APIs) from sticking to plastic well walls, ensuring high quantitative recovery.\u003c\/p\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003cp style=\"margin: 0;\"\u003e\u003cb\u003eCost-Effective Plate Re-Capping:\u003c\/b\u003e Allows laboratory technicians to replace individual glass tube inserts in reusable 96-well microplate frames without replacing the entire plate assembly.\u003c\/p\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\u003cp style=\"margin: 0; font-size: 0.8em;\"\u003e\u003ci\u003eAll product names, logos, and brands are property of their respective owners.\u003c\/i\u003e\u003c\/p\u003e","brand":"Agilent Technologies","offers":[{"title":"Default Title","offer_id":50743055483132,"sku":"6869","price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/s-l1600_11-fotor-20260730212926.jpg?v=1785461475","url":"https:\/\/lifesciencestrading.com\/products\/agilent-5188-5321-glass-tube-inserts-350-ul","provider":"Life Sciences Trading","version":"1.0","type":"link"}