{"product_id":"photosynthesis-ii-the-synthesis-of-starch-copy","title":"Gel Filtration: Plant Pigments","description":"\u003cp style=\"text-align: right;\"\u003e\u003cstrong\u003eNational Standards for Grades 10-14\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"Default\"\u003e\u003cspan class=\"A13\"\u003e\u003cspan style=\"font-size: 9.0pt;\"\u003eUse chromatographic columns to separate plant pigments by molecular size and structure. Students pack their own Sephadex G-25 chromatographic columns. They observe the separation of anthocyanin, carotene, chlorophyll and xanthophyll from a pigment mixture. This separation is due to differences in size as well as the presence of aromatic and cyclic compounds. The greater the number of rings in the pigments, the greater the affinity of the pigments for the gel granules. Columns may be re-used. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"Default\"\u003e\u003cspan class=\"A13\"\u003e\u003cspan style=\"font-size: 9.0pt;\"\u003eAllow 45 - 60 minutes lab time. Required, but not included: beet, spinach, and coleus leaves, balance, lab glassware and supplies. Designed for 24 students working in groups of four. \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"Default\"\u003e\u003cspan class=\"A13\"\u003e\u003cspan style=\"font-size: 9.0pt;\"\u003eSh. wt. 2lbs , DIM 13” x 12” x 5”\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Aquatic Equipment \u0026 Design Inc.","offers":[{"title":"LP8502: Lesson Plan Class Kit","offer_id":45252255711422,"sku":null,"price":127.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/9232\/3893\/files\/GelFiltrationPlantPigment.png?v=1753457060","url":"https:\/\/www.aquaticed.com\/products\/photosynthesis-ii-the-synthesis-of-starch-copy","provider":"Aquatic Equipment \u0026 Design Inc.","version":"1.0","type":"link"}