{"product_id":"007-5ms","title":"007-5MS","description":"\u003cp\u003eBoiling point column, low bleed characteristics for GC\/MS use: hydrocarbons, solvents, waxes, etc.,\u003c\/p\u003e\r\n\u003cp\u003eTraditional polysiloxane-type GC stationary phases degrade at elevated temperatures. The degradation process is well documented and consists of the thermal rearrangement of the siloxane backbone to produce cyclic groups. These groups are volatile and elute from the column as column 'bleed'. The silphenylene units within the 007-1MS backbone act as heat sinks and limit the formation of the cyclic groups normally associated with polysiloxane degradation.\u003c\/p\u003e\r\n\u003cp\u003e\u003cimg alt=\"\" src=\"\/cdn\/shop\/files\/5msstructure.jpg\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eSilphenylene\/polysiloxane phase unit.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"\/cdn\/shop\/files\/5msbleed1.jpg\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e007-5MS Silphenylene Baseline Bleed\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eA typical 007-5MS baseline bleed is shown above in Figure 2. The mass spectrum of the baseline bleed is shown below\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"\/cdn\/shop\/files\/5msbleedspectra.jpg\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003e007-5MS Silphenylene Mass Spectrum. Note the low abundance of key ions.\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003eWhile a typical methylpolysiloxane bleed spectrum shown below in Figure 4. yields high abundance's of ions with m\/z 207, 281, 355, the mass spectrum of the 007-5MS silphenylene column (above, Fig. 3.) yields significantly lower abundance of these ions. Additionally, it is apparent from Figure 3 that there is a reduction in the total number of ions resulting in \"cleaner\" spectrum and less background interference.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cimg alt=\"\" src=\"\/cdn\/shop\/files\/0075bleedspectra.jpg\"\u003e\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003cp\u003e\u003cstrong\u003eTypical Methylpolysiloxane Mass Spectrum\u003c\/strong\u003e\u003c\/p\u003e\r\n\u003cp\u003e007-5MS Silphenylene Polysiloxane columns are available in all standard column I.D.'s and in limited column lengths. The film thickness ranges are noted in the chart below.\u003c\/p\u003e\r\n\u003cp\u003e \u003c\/p\u003e\r\n\u003ch3\u003eSpecifications:\u003c\/h3\u003e\r\n\u003ctable class=\"Specifications\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003cth\u003eI.D.\u003c\/th\u003e\r\n\u003cth\u003e10M.\u003c\/th\u003e\r\n\u003cth\u003e15M.\u003c\/th\u003e\r\n\u003cth\u003e25M.\u003c\/th\u003e\r\n\u003cth\u003e30M.\u003c\/th\u003e\r\n\u003cth\u003e50M.\u003c\/th\u003e\r\n\u003cth\u003e60M.\u003c\/th\u003e\r\n\u003cth\u003e75M.\u003c\/th\u003e\r\n\u003cth\u003e100M.\u003c\/th\u003e\r\n\u003cth\u003eSTANDARD FILM THICKNESS RANGE\u003c\/th\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e0.10mm\u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e0.1 - 0.5µm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e0.18mm\u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e0.1 - 0.5µm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e0.25mm\u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e0.1 - 1.0µm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e0.32mm\u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e0.1 - 1.0µm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e0.53mm\u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd class=\"t\"\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e \u003c\/td\u003e\r\n\u003ctd\u003e0.1 - 1.0µm\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd colspan=\"10\"\u003e\r\nInquire with\r\n\u003ca href=\"mailto:tech@quadrexcorp.com\"\u003etech@quadrexcorp.com\u003c\/a\u003e\r\nabout custom lengths and films.\r\n\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e\u0026amp;nbsp\u003c\/p\u003e\r\n\u003ctable class=\"Specifications\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003cth colspan=\"2\"\u003e007-5MS OPERATING TEMPERATURE RANGE\u003c\/th\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003efilm thickness\u003c\/td\u003e\r\n\u003ctd\u003etemperature range\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003eup to 1.0µm\u003c\/td\u003e\r\n\u003ctd\u003e-50° C to 350°C\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e\r\n\u003cp\u003e\u0026amp;nbsp\u003c\/p\u003e\r\n\u003ctable class=\"Specifications\"\u003e\r\n\u003ctbody\u003e\r\n\u003ctr\u003e\r\n\u003cth colspan=\"5\"\u003e007-5MS BONDED PHASE RETENTION INDEX\u003c\/th\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003ebenzene\u003c\/td\u003e\r\n\u003ctd\u003e1-nitropropane\u003c\/td\u003e\r\n\u003ctd\u003e2-pentanone\u003c\/td\u003e\r\n\u003ctd\u003epyridine\u003c\/td\u003e\r\n\u003ctd\u003ebutanol\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003ctr\u003e\r\n\u003ctd\u003e665.62\u003c\/td\u003e\r\n\u003ctd\u003e751.12\u003c\/td\u003e\r\n\u003ctd\u003e689.59\u003c\/td\u003e\r\n\u003ctd\u003e756.23\u003c\/td\u003e\r\n\u003ctd\u003e662.46\u003c\/td\u003e\r\n\u003c\/tr\u003e\r\n\u003c\/tbody\u003e\r\n\u003c\/table\u003e","brand":"Quadrex","offers":[{"title":"Default Title","offer_id":50412881543415,"sku":"007-5MS","price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0915\/3730\/9943\/files\/capillary_20_5.jpg?v=1767949711","url":"https:\/\/quadrexcorp.com\/products\/007-5ms","provider":"Quadrex","version":"1.0","type":"link"}