{"id":3705,"date":"2025-07-10T14:46:48","date_gmt":"2025-07-10T06:46:48","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3705"},"modified":"2025-07-10T14:46:48","modified_gmt":"2025-07-10T06:46:48","slug":"determination-of-gold-in-ore-dissolution-solution-flame-atomic-absorption-spectrometry","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/vi\/applications\/determination-of-gold-in-ore-dissolution-solution-flame-atomic-absorption-spectrometry","title":{"rendered":"X\u00e1c \u0111\u1ecbnh v\u00e0ng trong gi\u1ea3i ph\u00e1p h\u00f2a tan qu\u1eb7ng (quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed l\u1eeda)"},"content":{"rendered":"
    \n
  1. T\u1ed5ng quan ph\u01b0\u01a1ng ph\u00e1p<\/li>\n<\/ol>\n

    M\u1eabu qu\u1eb7ng h\u00f2a tan \u0111\u01b0\u1ee3c \u0111o \u0111\u1ed9 h\u1ea5p th\u1ee5 \u1edf 242,8 nm b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng m\u1ed9t quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed, v\u00e0 h\u00e0m l\u01b0\u1ee3ng v\u00e0ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh l\u01b0\u1ee3ng b\u1eb1ng c\u00e1ch so s\u00e1nh v\u1edbi \u0111\u01b0\u1eddng cong ti\u00eau chu\u1ea9n.<\/p>\n

      \n
    1. 2. D\u1ee5ng c\u1ee5 v\u00e0 thu\u1ed1c th\u1eed<\/li>\n<\/ol>\n

      2.1 D\u1ee5ng c\u1ee5 v\u00e0 thi\u1ebft b\u1ecb<\/p>\n

      2.1.1 D\u1ee5ng c\u1ee5 ph\u00e1t hi\u1ec7n<\/p>\n

      M\u00e1y quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda (v\u1edbi \u0111\u00e8n cathode r\u1ed7ng v\u00e0ng)<\/p>\n

      Acetylene (1 chai, \u0110\u1ed9 tinh khi\u1ebft \u226599,99%)<\/p>\n

      M\u00e1y n\u00e9n kh\u00ed (\u00c1p su\u1ea5t x\u1ea3 \u0111\u1ecbnh m\u1ee9c: 0,3 MPa)<\/p>\n

      2.1.2 Thi\u1ebft b\u1ecb x\u1eed l\u00fd tr\u01b0\u1edbc<\/p>\n

      H\u1ec7 th\u1ed1ng n\u01b0\u1edbc si\u00eau tinh khi\u1ebft<\/p>\n

      Micropipette<\/p>\n

      L\u1ecd kh\u1ed1i l\u01b0\u1ee3ng<\/p>\n

      2.2 Ph\u1ea3n \u1ee9ng<\/p>\n

      2.2.1 Thu\u1ed1c ph\u1ea3n \u1ee9ng<\/p>\n

      Axit clorhydric<\/p>\n

      2.3 Ti\u00eau chu\u1ea9n<\/p>\n

      2.3.1 Gi\u1ea3i ph\u00e1p ch\u1ee9ng kho\u00e1n<\/p>\n

      GSB04-1715-2004 Gi\u1ea3i ph\u00e1p ch\u1ee9ng kho\u00e1n ti\u00eau chu\u1ea9n v\u00e0ng 1000 \u03bcg \/ mL<\/p>\n

        \n
      1. Ki\u1ec3m tra m\u1eabu<\/li>\n<\/ol>\n

        3.1 \u0110i\u1ec1u ki\u1ec7n ki\u1ec3m tra<\/p>\n

        \u0110i\u1ec1u ki\u1ec7n th\u1eed nghi\u1ec7m tham chi\u1ebfu cho quang ph\u1ed5 h\u1ea5p th\u1ee5 nguy\u00ean t\u1eed ng\u1ecdn l\u1eeda:<\/p>\n

        Y\u1ebfu t\u1ed1 v\u00e0ng<\/p>\n

        B\u01b0\u1edbc s\u00f3ng (nm) 242,8<\/p>\n

        B\u0103ng th\u00f4ng quang ph\u1ed5 (nm) 0,4<\/p>\n

        \u0110\u00e8n nguy\u00ean t\u1ed1 hi\u1ec7n t\u1ea1i (mA) 4.0<\/p>\n

        Chi\u1ec1u cao kh\u00ed (mm) 6<\/p>\n

        T\u1ed1c \u0111\u1ed9 d\u00f2ng ch\u1ea3y kh\u00ed (mL \/ ph\u00fat) 1300<\/p>\n

        \u00c1p su\u1ea5t m\u00e1y n\u00e9n kh\u00ed (MPa) 0,22<\/p>\n

        3.2 B\u01b0\u1edbc ki\u1ec3m tra m\u1eabu<\/p>\n

        \u0110i\u1ec1u ch\u1ec9nh thi\u1ebft b\u1ecb theo tr\u1ea1ng th\u00e1i l\u00e0m vi\u1ec7c t\u1ed1i \u01b0u c\u1ee7a n\u00f3, \u0111\u1ed1t ch\u00e1y v\u00e0 \u0111i\u1ec1u ch\u1ec9nh t\u1ef7 l\u1ec7 d\u00f2ng ch\u1ea3y kh\u00ed. Ki\u1ec3m tra li\u00ean ti\u1ebfp c\u00e1c gi\u1ea3i ph\u00e1p ti\u00eau chu\u1ea9n v\u00e0 m\u1eabu, \u0111\u1ecdc d\u1eef li\u1ec7u, nh\u1eadp tr\u1ecdng l\u01b0\u1ee3ng m\u1eabu v\u00e0 xem v\u00e0 ghi l\u1ea1i k\u1ebft qu\u1ea3.<\/p>\n

        3.3 T\u00ednh to\u00e1n k\u1ebft qu\u1ea3<\/p>\n

        H\u00e0m l\u01b0\u1ee3ng v\u00e0ng trong m\u1eabu \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00f4ng th\u1ee9c sau:<\/p>\n

        \"\"<\/p>\n

        \u1ede \u0111\u00e2u:<\/p>\n

        \u03c1(Au) N\u1ed3ng \u0111\u1ed9 kh\u1ed1i l\u01b0\u1ee3ng v\u00e0ng trong dung d\u1ecbch th\u1eed nghi\u1ec7m, b\u1eb1ng miligram m\u1ed7i l\u00edt (mg \/ L);<\/p>\n

        m - Kh\u1ed1i l\u01b0\u1ee3ng v\u00e0ng trong m\u1eabu thu \u0111\u01b0\u1ee3c t\u1eeb \u0111\u01b0\u1eddng cong hi\u1ec7u chu\u1ea9n, b\u1eb1ng microgram (\u03bcg);<\/p>\n

        V - Kh\u1ed1i l\u01b0\u1ee3ng dung d\u1ecbch m\u1eabu, b\u1eb1ng milil\u00edt (mL).<\/p>","protected":false},"excerpt":{"rendered":"

        Method Overview The dissolved ore sample is measured for absorbance at 242.8 nm using an atomic absorption spectrometer, and the gold content is quantified by comparison with a standard curve. 2. Instruments and Reagents 2.1 Instruments and Equipment 2.1.1 Detection Instruments Flame Atomic Absorption Spectrophotometer\u00a0(With Gold Hollow Cathode Lamp) Acetylene\u00a0(1 bottle,Purity\u226599.99%) Air Compressor\u00a0(Rated Discharge Pressure: […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[36,75],"tags":[],"class_list":["post-3705","post","type-post","status-publish","format-standard","hentry","category-applications","category-environment"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3705","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/comments?post=3705"}],"version-history":[{"count":0,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/posts\/3705\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/media?parent=3705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/categories?post=3705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/vi\/wp-json\/wp\/v2\/tags?post=3705"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}