{"product_id":"phosphate-buffer-dilution-bottle-99-ml-case-of-48","title":"Phosphate Buffer, Dilution Bottle, 99 mL (Case of 48)","description":"\u003cp\u003e\u003cstrong\u003eEdge Biologicals® Phosphate Buffer, Dilution Bottle, 99 mL (Case of 48), EB9948WW\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePackaged in plastic flip-top containers, sealed, sterile, and ready-for-use\u003c\/li\u003e\n\u003cli\u003eContains 99 mL of solution\u003c\/li\u003e\n\u003cli\u003eCan be used in many procedures for preparation of dilution blanks for use in examination of waters and wastewater\u003c\/li\u003e\n\u003cli\u003eFinal sterilization is done by gamma radiation\u003c\/li\u003e\n\u003cli\u003e50\/case\u003c\/li\u003e\n\u003cli\u003ePrepared in accordance to the following procedure¹:\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFORMULATION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSolution #1\n\u003cul\u003e\n\u003cli\u003eDibasic potassium phosphate………………34 g\u003c\/li\u003e\n\u003cli\u003eDeionized water……………………………1000 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eSolution #2\n\u003cul\u003e\n\u003cli style=\"list-style-type: none;\"\u003e\n\u003cul\u003e\n\u003cli\u003eMagnesium chloride…………………………81.1 g\u003c\/li\u003e\n\u003cli\u003eDeionized water……………………………1000 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003ePREPARATION:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSterilize both solutions by steam sterilization\u003c\/li\u003e\n\u003cli\u003eStore refrigerated\u003c\/li\u003e\n\u003cli\u003eTo prepare a working solution add 1.25 mL of Solution #1 and 5 mL of solution #2 to deionized water and make up to 1 L\u003c\/li\u003e\n\u003cli\u003eAdjust pH to 7.2 ± 0.2\u003c\/li\u003e\n\u003cli\u003eDispense into appropriate containers\u003c\/li\u003e\n\u003cli\u003eSterilize either by autoclaving for 15 minutes at 15 lbs pressure and 121 °C (glass test tubes or glass bottles) or by gamma irradiation (plastic flip-top bottles)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eQUALITY CONTROL:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIf final volume is less than 90 mL\n\u003cul\u003e\n\u003cli\u003ePrepare pour plates of samples using 1 mL of buffer and plate count agar\u003c\/li\u003e\n\u003cli\u003eIncubate for 72 hours at 35 °C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eIf final volume is = 90 ml\n\u003cul\u003e\n\u003cli\u003eFilter sample through a 0.22 μ filter\u003c\/li\u003e\n\u003cli\u003eAseptically remove the filter and place on surface of a plate count agar plate\u003c\/li\u003e\n\u003cli\u003eIncubate at 35 °C for 72 hours\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003csmall\u003e¹Greenberg, Trussell and Clesceri (ed.) 1985. Standard Methods for the Examination of Water and Wastewater, 16th ed., APHA, Washington, DC\u003c\/small\u003e\u003c\/p\u003e","brand":"Edge Biologicals Inc","offers":[{"title":"CS (1)","offer_id":51110772736315,"sku":"52-8011-01-CS","price":158.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/52-8011-01.png?v=1785295903","url":"https:\/\/preiser.com\/products\/phosphate-buffer-dilution-bottle-99-ml-case-of-48","provider":"Preiser Scientific","version":"1.0","type":"link"}