{"product_id":"208-3355-030-extraction-column","title":"0.5–2.4 mL Caps, PP, Natural — 208-3355-030 | 200\/Bag | Caplugs® Evergreen","description":"\u003ch2\u003eExtraction Columns with Medium Filter (45–90 µm) — Polypropylene, Natural, 200\/Bag (208-3355-030)\u003c\/h2\u003e\n\u003cp\u003eThese polypropylene extraction columns feature an integrated medium-porosity filter (45–90 µm) designed for higher-volume sample cleanup of biological fluids, environmental samples, and food extracts prior to immunoassay, photometry, or chromatographic analysis. Supplied non-sterile in a convenient 200\/Bag pack, part number 208-3355-030 bridges the gap between small-format mini columns and large preparative SPE tubes while remaining fully compatible with standard bench centrifuge, vacuum manifold, and gravity-flow configurations. The natural (clear) color allows visual monitoring of sample loading and flow.\u003c\/p\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number (MPN)\u003c\/td\u003e\n\u003ctd\u003e208-3355-030\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFormat\u003c\/td\u003e\n\u003ctd\u003eExtraction Column\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntegrated Filter Pore Size\u003c\/td\u003e\n\u003ctd\u003e45–90 µm (Medium)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003ePolypropylene (PP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eNatural\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSterility\u003c\/td\u003e\n\u003ctd\u003eNon-Sterile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack Size\u003c\/td\u003e\n\u003ctd\u003e200\/Bag\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBPA \/ Phthalate \/ Latex\u003c\/td\u003e\n\u003ctd\u003eBPA-Free, Phthalate-Free, Latex-Free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSolid-phase extraction (SPE) cleanup of serum, plasma, and urine prior to immunoassay or LC-MS analysis\u003c\/li\u003e\n\u003cli\u003eEnvironmental sample preparation — soil and water extract cleanup for moderate particulate loads in the 45–90 µm range\u003c\/li\u003e\n\u003cli\u003eFood and agricultural matrix cleanup ahead of GC-MS or LC-MS quantitation\u003c\/li\u003e\n\u003cli\u003eGeneral biological fluid processing where higher loading capacity is required compared to mini columns\u003c\/li\u003e\n\u003cli\u003eMethod development workflows requiring compatibility with a broad range of aqueous and organic modifier systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThese extraction columns are designed for use across three primary processing formats. In centrifuge-based workflows, they seat over standard 5 mL or 15 mL collection tubes and withstand forces up to 3,000×g, making them well suited to biological matrix extractions. For vacuum-driven SPE, they are compatible with manifold systems from Waters, Phenomenex, Supelco, and Agilent — confirm column outer diameter against your specific manifold port before use. Gravity-flow bench stands used for high-clarity aqueous matrices are also supported. A light-protected amber variant is available for workflows involving light-sensitive analytes.\u003c\/p\u003e\n\n\u003ch2\u003eChemical Resistance\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eReagent \/ Condition\u003c\/th\u003e\n\u003cth\u003eCompatibility\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAqueous buffers \/ saline\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDilute acids and bases\u003c\/td\u003e\n\u003ctd\u003eExcellent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMethanol \/ ethanol\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for SPE wash and elution steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcetonitrile\u003c\/td\u003e\n\u003ctd\u003eGood — suitable for SPE wash and elution steps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMixed organic\/aqueous SPE solvents\u003c\/td\u003e\n\u003ctd\u003eGood — broad organic modifier range supported\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChlorinated solvents (e.g., chloroform, DCM)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAromatic solvents (e.g., toluene, xylene)\u003c\/td\u003e\n\u003ctd\u003eNot recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eQuality \u0026amp; Procurement\u003c\/h2\u003e\n\u003cp\u003eMade in USA, these Caplugs® Evergreen extraction columns are manufactured from FDA-compliant, BPA-free, phthalate-free, and latex-free polypropylene resin under ISO 9001 quality management. The integrated 45–90 µm filter disk is molded in place — not adhesive-bonded — eliminating adhesive extractables at the filter-matrix interface and ensuring consistent performance across the full 200-column bag. LabSupplies.com is an authorized dealer and ships from USA inventory, typically same business day for stocking items, with volume pricing available for institutional, clinical, and grant-funded laboratories ordering at quantity.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWhat pore size does the integrated filter provide, and is it suitable for biological fluids?\u003c\/strong\u003e\u003cbr\u003eThe filter provides a medium porosity of 45–90 µm, which removes particulates in that range from complex matrices. It is well suited to serum, plasma, and urine processing prior to immunoassay or chromatography, and provides adequate particulate removal for moderate-load environmental and food extract cleanup as well.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan these columns be used with standard vacuum SPE manifolds?\u003c\/strong\u003e\u003cbr\u003eYes — they are compatible with vacuum manifold systems from Waters, Phenomenex, Supelco, and Agilent, among others. Because manifold port dimensions vary by manufacturer and model, it is good practice to verify the column outer diameter against your specific manifold before switching from your current supply.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eAre these columns autoclavable or suitable for heated extraction protocols?\u003c\/strong\u003e\u003cbr\u003ePolypropylene offers good dimensional stability under centrifuge forces up to 3,000×g and at elevated temperatures, making these columns suitable for heated extraction protocols. While PP is autoclavable in principle, these columns are supplied non-sterile; consult your protocol requirements before applying any sterilization step.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eIs there a light-protected version for photosensitive analytes?\u003c\/strong\u003e\u003cbr\u003eYes — an amber polypropylene variant is available for workflows where analyte photodegradation is a concern, such as certain mycotoxin or vitamin assays. Ask your LabSupplies.com representative about availability and pack options for that sibling product.\u003c\/p\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"Product\",\"name\":\"Extraction Columns with Medium Filter (45–90 µm) — Polypropylene, Natural, 200\/Bag\",\"sku\":\"2083355030E1\",\"mpn\":\"208-3355-030\",\"brand\":{\"@type\":\"Brand\",\"name\":\"Caplugs® Evergreen\"},\"material\":\"Polypropylene (PP)\",\"color\":\"Natural\",\"offers\":{\"@type\":\"Offer\",\"priceCurrency\":\"USD\",\"price\":\"118.53\",\"availability\":\"https:\/\/schema.org\/InStock\"}}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\/\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What pore size does the integrated filter provide, and is it suitable for biological fluids?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The filter provides a medium porosity of 45–90 µm, which removes particulates in that range from complex matrices. 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