{"product_id":"blue-open-top-polypropylene-cap-plastic-septa-9mm-chromatography-vial-2ml","title":"Blue Open-Top Polypropylene Cap \u0026 Septa for 2mL Vials","description":"\n\u003ch2\u003eBlue Open-Top Polypropylene Cap with Plastic Septa – 9mm Chromatography Vial Replacement\u003c\/h2\u003e\n\u003cp\u003eKeep your analytical workflow running smoothly with these \u003cstrong\u003eBlue Open-Top Polypropylene Caps with Plastic Septa\u003c\/strong\u003e, designed as precise-fit replacements for standard 9mm, 2mL chromatography vials. Whether you're working in a research lab, quality control environment, or analytical testing facility, these caps deliver consistent, reliable sealing performance sample after sample.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Durable polypropylene construction for chemical compatibility and long-lasting use\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOpen-Top Design:\u003c\/strong\u003e Allows easy needle access while maintaining a secure fit on the vial\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePlastic Septa:\u003c\/strong\u003e Provides a reliable seal to protect sample integrity during storage and analysis\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e9mm Thread Size:\u003c\/strong\u003e Compatible with standard 2mL chromatography vials\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue — easy to identify and organize in multi-sample workflows\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAvailable in 3 color options\u003c\/strong\u003e to suit your lab's coding and organizational needs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReplacement-ready:\u003c\/strong\u003e Ideal for high-throughput labs requiring frequent cap changes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose These Chromatography Caps?\u003c\/h3\u003e\n\u003cp\u003eDesigned for precision and consistency, these polypropylene caps are a dependable replacement option for busy laboratory settings. The open-top format gives technicians fast, unobstructed access to the septa, streamlining autosampler and manual injection workflows. The snug 9mm thread ensures minimal sample evaporation and contamination risk between injections.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCap Type:\u003c\/strong\u003e Open-top\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Polypropylene (cap) \/ Plastic (septa)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size:\u003c\/strong\u003e 9mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Vial Size:\u003c\/strong\u003e 2mL chromatography vials\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor:\u003c\/strong\u003e Blue\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Qme\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eHPLC (High-Performance Liquid Chromatography)\u003c\/li\u003e\n  \u003cli\u003eGC (Gas Chromatography) sample preparation\u003c\/li\u003e\n  \u003cli\u003eAnalytical laboratory workflows\u003c\/li\u003e\n  \u003cli\u003eQuality control and testing environments\u003c\/li\u003e\n  \u003cli\u003eSample storage and organization\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor more information on laboratory best practices and analytical chemistry standards, visit the \u003ca href=\"https:\/\/www.nist.gov\/topics\/chemistry\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Chemistry Resources\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What size vials are these polypropylene chromatography caps compatible with?\u003c\/h4\u003e\n\u003cp\u003eA: These blue open-top polypropylene caps with plastic septa are designed to fit standard 9mm threaded 2mL chromatography vials, making them suitable for most HPLC and GC autosampler systems.\u003c\/p\u003e\n\u003ch4\u003eQ: What is the septa material, and why does it matter?\u003c\/h4\u003e\n\u003cp\u003eA: The septa is made from plastic, providing a reliable barrier that helps maintain sample integrity by minimizing evaporation and preventing contamination between injections or during storage.\u003c\/p\u003e\n\u003ch4\u003eQ: Can I use these caps for both manual injection and autosampler workflows?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The open-top design allows easy needle penetration, making these caps suitable for both manual injection techniques and automated autosampler setups commonly used in analytical labs.\u003c\/p\u003e\n\u003ch4\u003eQ: Are these caps available in other colors?\u003c\/h4\u003e\n\u003cp\u003eA: Yes, these Qme chromatography vial caps are available in 3 color options, which is helpful for color-coding samples and streamlining multi-batch laboratory organization.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What size vials are these polypropylene chromatography caps compatible with?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"These blue open-top polypropylene caps with plastic septa are designed to fit standard 9mm threaded 2mL chromatography vials, making them suitable for most HPLC and GC autosampler systems.\"}}, {\"@type\": \"Question\", \"name\": \"What is the septa material, and why does it matter?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The septa is made from plastic, providing a reliable barrier that helps maintain sample integrity by minimizing evaporation and preventing contamination between injections or during storage.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use these caps for both manual injection and autosampler workflows?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The open-top design allows easy needle penetration, making these caps suitable for both manual injection techniques and automated autosampler setups commonly used in analytical labs.\"}}, {\"@type\": \"Question\", \"name\": \"Are these caps available in other colors?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes, these Qme chromatography vial caps are available in 3 color options, which is helpful for color-coding samples and streamlining multi-batch laboratory organization.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Craft \u0026 DIY Supplies\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/collections\/craft-diy-supplies\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"Blue Open-Top Polypropylene Cap \u0026 Septa for 2mL Vials\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/products\/blue-open-top-polypropylene-cap-plastic-septa-9mm-chromatography-vial-2ml\"}]}\u003c\/script\u003e","brand":"Qme","offers":[{"title":"Solid cover","offer_id":49713266098390,"sku":"14:933100347#Solid cover","price":11.99,"currency_code":"USD","in_stock":true},{"title":"Pre cut cover","offer_id":49713266131158,"sku":"14:504#Pre cut cover","price":11.99,"currency_code":"USD","in_stock":true},{"title":"Headspace cover","offer_id":49713266163926,"sku":"14:201299530#Headspace cover","price":11.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/5243\/8486\/files\/S3bfa7bf24818447ba102a41692b9c542s.webp?v=1785270105","url":"https:\/\/qmeboost.com\/products\/blue-open-top-polypropylene-cap-plastic-septa-9mm-chromatography-vial-2ml","provider":"Qme","version":"1.0","type":"link"}