{"id":4483,"date":"2026-03-16T10:36:00","date_gmt":"2026-03-16T02:36:00","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=4483"},"modified":"2026-03-16T10:36:00","modified_gmt":"2026-03-16T02:36:00","slug":"determination-of-vitamin-b%e2%82%82ultraviolet-visible-spectrophotometry-2","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/th\/applications\/bio-tech-and-life-sciences\/determination-of-vitamin-b%e2%82%82ultraviolet-visible-spectrophotometry-2","title":{"rendered":"\u0e01\u0e32\u0e23\u0e01\u0e4d\u0e32\u0e2b\u0e19\u0e14\u0e27\u0e34\u0e15\u0e32\u0e21\u0e34\u0e19\u0e1a\u0e35 \u2082 (\u0e2d\u0e31\u0e25\u0e15\u0e23\u0e32\u0e44\u0e27\u0e42\u0e2d\u0e40\u0e25\u0e15\u0e17\u0e35\u0e48\u0e21\u0e2d\u0e07\u0e40\u0e2b\u0e47\u0e19\u0e44\u0e14\u0e49)"},"content":{"rendered":"
    \n
  1. \u0e20\u0e32\u0e1e\u0e23\u0e27\u0e21\u0e27\u0e34\u0e18\u0e35<\/li>\n<\/ol>\n

    \u0e27\u0e34\u0e18\u0e35\u0e19\u0e35\u0e49\u0e02\u0e36\u0e49\u0e19\u0e2d\u0e22\u0e39\u0e48\u0e01\u0e31\u0e1a GB 12752-2010 \u0e21\u0e32\u0e15\u0e23\u0e10\u0e32\u0e19\u0e04\u0e27\u0e32\u0e21\u0e1b\u0e25\u0e2d\u0e14\u0e20\u0e31\u0e22\u0e2d\u0e32\u0e2b\u0e32\u0e23\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 – \u0e2a\u0e32\u0e23\u0e40\u0e15\u0e34\u0e21\u0e41\u0e15\u0e48\u0e07\u0e2d\u0e32\u0e2b\u0e32\u0e23 \u0e27\u0e34\u0e15\u0e32\u0e21\u0e34\u0e19\u0e1a\u0e35 \u2082 (\u0e23\u0e34\u0e42\u0e1a\u0e1f\u0e25\u0e32\u0e27\u0e34\u0e19) \u0e2b\u0e25\u0e31\u0e07\u0e08\u0e32\u0e01\u0e25\u0e30\u0e25\u0e32\u0e22\u0e27\u0e34\u0e15\u0e32\u0e21\u0e34\u0e19\u0e1a\u0e35 \u2082, \u0e21\u0e31\u0e19\u0e16\u0e39\u0e01\u0e40\u0e08\u0e32\u0e30\u0e08\u0e32\u0e07\u0e14\u0e49\u0e27\u0e22\u0e2a\u0e32\u0e23\u0e25\u0e30\u0e25\u0e32\u0e22\u0e42\u0e0b\u0e40\u0e14\u0e35\u0e22\u0e21\u0e2d\u0e30\u0e0b\u0e34\u0e40\u0e15\u0e15\u0e41\u0e25\u0e30\u0e16\u0e39\u0e01\u0e43\u0e0a\u0e49\u0e2a\u0e33\u0e2b\u0e23\u0e31\u0e1a\u0e01\u0e32\u0e23\u0e2a\u0e41\u0e01\u0e19\u0e2a\u0e40\u0e1b\u0e01\u0e15\u0e23\u0e31\u0e21\u0e40\u0e1e\u0e37\u0e48\u0e2d\u0e01\u0e4d\u0e32\u0e2b\u0e19\u0e14\u0e2a\u0e39\u0e07\u0e2a\u0e38\u0e14\u0e01\u0e32\u0e23\u0e14\u0e39\u0e14\u0e0b\u0e36\u0e21\u0e2a\u0e39\u0e07\u0e2a\u0e38\u0e14 \u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e01\u0e32\u0e23\u0e14\u0e39\u0e14\u0e0b\u0e36\u0e21\u0e17\u0e35\u0e48 375nm \u0e16\u0e36\u0e07\u0e17\u0e35\u0e48 267nm \u0e04\u0e27\u0e23\u0e40\u0e1b\u0e47\u0e19 0.31 ~ 0.33 \u0e41\u0e25\u0e30\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e01\u0e32\u0e23\u0e14\u0e39\u0e14\u0e0b\u0e36\u0e21\u0e17\u0e35\u0e48 222nm \u0e16\u0e36\u0e07\u0e17\u0e35\u0e48 267nm \u0e04\u0e27\u0e23\u0e40\u0e1b\u0e47\u0e19 0.36 ~ 0.39<\/p>\n

      \n
    1. \u0e02\u0e2d\u0e1a\u0e40\u0e02\u0e15<\/li>\n<\/ol>\n

      \u0e27\u0e34\u0e15\u0e32\u0e21\u0e34\u0e19 B2<\/p>\n

        \n
      1. \u0e2d\u0e49\u0e32\u0e07\u0e2d\u0e34\u0e07<\/li>\n<\/ol>\n

        GB 14752-2010 * \u0e21\u0e32\u0e15\u0e23\u0e10\u0e32\u0e19\u0e04\u0e27\u0e32\u0e21\u0e1b\u0e25\u0e2d\u0e14\u0e20\u0e31\u0e22\u0e2d\u0e32\u0e2b\u0e32\u0e23\u0e41\u0e2b\u0e48\u0e07\u0e0a\u0e32\u0e15\u0e34 – \u0e2a\u0e32\u0e23\u0e40\u0e15\u0e34\u0e21\u0e41\u0e15\u0e48\u0e07\u0e2d\u0e32\u0e2b\u0e32\u0e23 \u0e27\u0e34\u0e15\u0e32\u0e21\u0e34\u0e19 B2 (Riboflavin) *<\/p>\n

        4. \u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e21\u0e37\u0e2d\u0e17\u0e14\u0e2a\u0e2d\u0e1a<\/p>\n

        \u0e40\u0e04\u0e23\u0e37\u0e48\u0e2d\u0e07\u0e27\u0e31\u0e14\u0e2a\u0e40\u0e1b\u0e04\u0e42\u0e1f\u0e42\u0e15\u0e21\u0e34\u0e40\u0e15\u0e2d\u0e23\u0e4c TU1901 UV (240nm ~ 465nm)<\/p>\n

        1cm \u0e04\u0e27\u0e2d\u0e15\u0e0b\u0e4c Cuvette<\/p>","protected":false},"excerpt":{"rendered":"

        Method Overview This method is based on GB 12752-2010 National Food Safety Standard – Food Additive Vitamin B\u2082(Riboflavin). After dissolving vitamin B\u2082, it is diluted with sodium acetate solution, and a 1cm quartz cuvette is used for spectral scanning to determine the maximum absorption peak. The absorbance ratio at 375nm to that at 267nm should […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[77],"tags":[],"class_list":["post-4483","post","type-post","status-publish","format-standard","hentry","category-bio-tech-and-life-sciences"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/posts\/4483","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/comments?post=4483"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/posts\/4483\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/media?parent=4483"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/categories?post=4483"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/th\/wp-json\/wp\/v2\/tags?post=4483"}],"curies":[{"name":"\u0e27\u0e35\u0e1e\u0e35","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}