{"product_id":"semi-prep-preparative-guard-column-prp-c18-33-x-4-6-mm-12-20-µm-ss-hardware","title":"Semi-prep\/Preparative Guard Column, PRP-C18, 33 x 4.6 mm, 12-20 µm, SS Hardware","description":"\u003cp class=\"richp\"\u003eGuard columns can provide many benefits when used upstream from an analytical, preparative, or semi-preparative column. Guard columns are typically chosen to have the same packing as the primary column. Any compounds or particulate material that would block the frits or highly adsorb to the primary column will do so on the guard column, thereby protecting and extending the lifetime of the more costly column. In addition to protective uses, guard columns can be used as sacrificial preparative components.\u003c\/p\u003e\n\u003cp class=\"richp\"\u003e\u003cb\u003eSpecifications:\u003c\/b\u003e\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 40%; text-align: left; white-space: nowrap;\"\u003eSeparation Mode\u003c\/th\u003e\n\u003ctd\u003eReversed-Phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eStationary Phase\u003c\/th\u003e\n\u003ctd\u003ePRP-C18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eFormat\u003c\/th\u003e\n\u003ctd\u003eGuard Column\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eHardware Inner Diameter\u003c\/th\u003e\n\u003ctd\u003e4.6 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eHardware Length\u003c\/th\u003e\n\u003ctd\u003e33 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eParticle Size\u003c\/th\u003e\n\u003ctd\u003e12–20 µm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003ePacking Material Type\u003c\/th\u003e\n\u003ctd\u003ePS-DVB Functionalized with C18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eParticle Surface Area\u003c\/th\u003e\n\u003ctd\u003e368 m²\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003ePore Volume\u003c\/th\u003e\n\u003ctd\u003e0.624 cm³\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eGuard Column Size\u003c\/th\u003e\n\u003ctd\u003eSemi-prep\/Preparative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eHardware Material\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eMaximum Pressure\u003c\/th\u003e\n\u003ctd\u003e5,000 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"text-align: left; white-space: nowrap;\"\u003eCompound Classification\u003c\/th\u003e\n\u003ctd\u003eOrganics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Hamilton Company","offers":[{"title":"Default Title","offer_id":55856334700835,"sku":"H79918","price":0.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0926\/3870\/8003\/files\/Hamilton_hplc_stainless_steel_prep_guard_column_2048x2048pxl.jpg?v=1793041012","url":"https:\/\/chromspec.com\/products\/semi-prep-preparative-guard-column-prp-c18-33-x-4-6-mm-12-20-%c2%b5m-ss-hardware","provider":"Chromatographic Specialties Inc.","version":"1.0","type":"link"}