{"id":2802,"date":"2023-09-14T13:37:41","date_gmt":"2023-09-14T05:37:41","guid":{"rendered":"http:\/\/www.pgeneral.com\/?p=2802"},"modified":"2026-01-22T11:43:03","modified_gmt":"2026-01-22T03:43:03","slug":"gcms%eb%a5%bc-%ed%86%b5%ed%95%9c-%ec%8b%9d%ed%92%88-%eb%82%b4-%ed%94%bc%eb%a6%ac%eb%8b%a4%eb%b2%a4-%ec%9e%94%eb%a5%98%eb%ac%bc-%ec%b8%a1%ec%a0%95","status":"publish","type":"post","link":"https:\/\/www.pgeneral.com\/ko\/applications\/food-and-drugs\/determination-of-pyridaben-residues-in-food-by-gcms\/","title":{"rendered":"GCM\uc5d0 \uc758\ud55c \uc74c\uc2dd\uc758 \ud53c\ub9ac \ub2e4\ubca4 \uc794\uae30\uc758 \uacb0\uc815"},"content":{"rendered":"<p>\uc6d0\uce59<br \/>\n\ud53c\ub9ac \ub2e4\ubca4 \uc794\uae30\ub97c \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8-\uc0ac\uc774\ud074\ub85c \ud5e5\uc0b0 \ub610\ub294 \uc544\uc138\ud1a0 \ub2c8\ud2b8\ub9b4\ub85c \ucd94\ucd9c\ud558\uace0, GC-ECD\uc5d0 \uc758\ud574 \uce21\uc815 \ub41c \uac94 \ud22c\uacfc \ud06c\ub85c\ub9c8\ud1a0 \uadf8\ub798\ud53c (GPC) \ub610\ub294 SPE\uc5d0 \uc758\ud574 \uc815\uc81c\ub418\uace0 GC-MS\uc5d0 \uc758\ud55c \ud655\uc778.<\/p>\n<p>\uc2dc\uc57d \ubc0f \uc7ac\ub8cc<br \/>\n\ub2ec\ub9ac \uba85\uc2dc\ub418\uc9c0 \uc54a\ub294 \ud55c \uc0ac\uc6a9 \ub41c \ubaa8\ub4e0 \uc2dc\uc57d\uc740 \ubd84\uc11d\uc801\uc73c\ub85c \uc21c\uc218\ud574\uc57c\ud569\ub2c8\ub2e4.<br \/>\n1. \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 : HPLC \ub4f1\uae09.<br \/>\n2. \uc0ac\uc774\ud074\ub85c \ud5e5\uc0b0 : HPLC \ub4f1\uae09.<br \/>\n3. \uc544\uc138\ud1a0 \ub2c8\ud2b8\ub9b4 : HPLC \ub4f1\uae09<br \/>\n4. \ud5e5\uc0b0 : HPLC \ub4f1\uae09.<br \/>\n5. Trichloromethane : HPLC \ub4f1\uae09.<br \/>\n6. \ubb34\uc218 \ud669\uc0b0 \ub098\ud2b8\ub968;<br \/>\n4 \uc2dc\uac04 \ub3d9\uc548 \ubc00\uc811\ud558\uac8c \ub2eb\ud78c \uc6a9\uae30\uc5d0 \ubcf4\uad00\ud588\uc2b5\ub2c8\ub2e4.<br \/>\n7. \uc5fc\ud654\ub098\ud2b8\ub968.<br \/>\n8. \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 + \uc2dc\ud074\ub85c \ud5e5\uc0b0 (1 + 1,V\/V).<br \/>\n9. \ud5e5\uc0b0 + \ud2b8\ub9ac\ud074\ub85c\ub85c \uba54\ud0c4 (9 + 1,V\/V).<br \/>\n10. \uc0ac\uc774\ud074\ub85c \ud5e5\uc0b0 + \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 (6 + 1,V\/V)<br \/>\n11. Pyridaben \ud45c\uc900 (Pyridaben : CAS No. 96489-71-3 : \ubd84\uc790\uc2dd C19H25CIN2OS; \ubd84\uc790\ub7c9 : 364. 93; \uc21c\uc218 : 99%).<br \/>\n\ud45c\uc900 \uc2a4\ud1a1 \uc194\ub8e8\uc158 : \uc77c\uc815\ub7c9\uc758 \ud53c\ub9ac \ub2e4\ubca4 \ud45c\uc900\uc744 \uc815\ud655\ud558\uac8c \uacc4\ub7c9\ud558\uc5ec \uc18c\ub7c9\uc758 \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8\ub85c \ubd84\ub9ac\ud569\ub2c8\ub2e4.<br \/>\n13. \ud45c\uc900 \uc791\uc5c5 \uc194\ub8e8\uc158 : \ud45c\uc900 \uc791\uc5c5 \uc194\ub8e8\uc158\uc73c\ub85c \ud45c\uc900 \uc2a4\ud1a1 \uc6a9\uc561\uc744 \ud544\uc694\ud55c \ub18d\ub3c4\ub85c \ud76c\uc11d\ud558\uc2ed\uc2dc\uc624.<br \/>\n14. \ud0c4\uc18c -PSA- \ud29c\ube0c : 1ML, 50mg, 3ML \uc544\uc138\ud1a0 \ub2c8\ud2b8\ub9b4 + \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8\ub85c \ud65c\uc131 (10)<br \/>\n15. HLB SPE \ud29c\ube0c : 3mL, 60mg \ub610\ub294 \uc774\uc640 \ub3d9\ub4f1\ud55c.<br \/>\n(9), \uc2dc\uc791\ud558\uae30 \uc804\uc5d0 2 mL\uc758 \ud2b8\ub9ac\ud074\ub85c\ub85c \uba54\ud0c4 \ubc0f 5 mL\uc758 \uc99d\ub958\uc218.<br \/>\n16. \ud544\ub984 : 0.45 \u03bcm.<\/p>\n<p>\uc7a5\uce58 \ubc0f \uc7a5\ube44<br \/>\n1. \uac00\uc2a4 \ud06c\ub85c\ub9c8\ud1a0 \uadf8\ub798\ud53c : ECD\uac00 \uc7a5\ucc29\ub418\uc5b4 \uc788\uc2b5\ub2c8\ub2e4<br \/>\n2. \uac00\uc2a4 \ud06c\ub85c\ub9c8\ud1a0 \uadf8\ub798\ud53c : \uc804\uc790 \uc774\uc628\ud654 \uc9c8\ub7c9 \ubd84\uc11d\ubc95\uc774 \uc7a5\ucc29\ub41c\ub2e4.<br \/>\n3. \ubd84\uc11d \uade0\ud615 : 0.01 g\uc758 \uac10\uac01.<br \/>\n4. \ubd84\uc11d \uade0\ud615 : 0.1 mg\uc758 \uac10\uac01<br \/>\n5. \uc774\uc18c \uc131 \ud38c\ud504 \ubc0f \ubd84\ud68d \uc218\uc9d1\uae30\uac00 \uc7a5\ucc29 \ub41c \uac94 \ud22c\uacfc \ud06c\ub85c\ub9c8\ud1a0 \uadf8\ub798\ud53c.<br \/>\n6. \uc6d0\uc2ec\ubd84\ub9ac\uae30: 4,000 r\/min.<br \/>\n7. \ud68c\uc804 \uc9c4\uacf5 \uc99d\ubc1c\uae30<br \/>\n8. \ubb34\uc218 \ud669\uc0b0 \ub098\ud2b8\ub968 \uceec\ub7fc : 7.5 cm x 1.5 cm (i. d.) \uc5f0\ub8cc\uac00 \ucc44\uc6cc\uc9c4 5cm \ud761\uc218\uc131\uba74\uc5d0 \ucc44\uc6cc\uc9c4 \ubb34\uc218 \ud669\uc0b0 \ub098\ud2b8\ub968.<br \/>\n9. \uc640\ub958 \ubbf9\uc11c.<br \/>\n10. \ucd08\uc74c\ud30c \uae30\uacc4.<br \/>\n11. \uade0\uc9c8\ud654 \uc81c.<br \/>\n12. 50 ml \ub9c8\uac1c\uac00\uc788\ub294 \ud50c\ub77c\uc2a4\ud2f1 \uc6d0\uc2ec \ubd84\ub9ac \uad00<\/p>\n<p>\ud14c\uc2a4\ud2b8 \uc0d8\ud50c\uc758 \uc900\ube44 \ubc0f \uc800\uc7a5<br \/>\n\ud14c\uc2a4\ud2b8 \uc0d8\ud50c \uc900\ube44<br \/>\n1. \uc2dc\ub9ac\uc5bc\uacfc \ucc28<br \/>\n\uc0d8\ud50c \ubd84\uae30 \uc0d8\ud50c\uc744 ca.<br \/>\n2. \uacfc\uc77c\uacfc \ucc44\uc18c<br \/>\n\uacb0\ud569 \ub41c 1 \ucc28 \uc0d8\ud50c\uc740 ca\ub85c \uac10\uc18c\ub41c\ub2e4.<\/p>\n<p>3. \uc721\ub958 \ubc0f \uace0\uae30 \uc81c\ud488, \uacac\uacfc\ub958<br \/>\n\ub300\ud45c\uc801\uc73c\ub85c \uc57d 1kg\uc758 \uc0d8\ud50c\uc744 \uac00\uc838 \uac00\uc2ed\uc2dc\uc624.<\/p>\n<p>\ud14c\uc2a4\ud2b8 \uc0d8\ud50c\uc758 \uc800\uc7a5<br \/>\n\uc2dc\ub9ac\uc5bc, \ucc28, \uacac\uacfc\ub958, \uc2dd\ucd08, \uafc0 \ubc0f \uafc0 \uc81c\ud488\uc758 \ud14c\uc2a4\ud2b8 \uc0d8\ud50c\uc740 0 \u00b0 ~ 4 \u2103 \uc0ac\uc774\uc5d0 \uc800\uc7a5\ud574\uc57c\ud569\ub2c8\ub2e4.<\/p>\n<p>\uc808\ucc28<br \/>\n\ucd94\ucd9c<br \/>\n1. \uc57c\ucc44, \uacfc\uc77c.<br \/>\n\uc2dc\ud5d8 \uc2dc\ub8cc 10g(\uc815\ud655\ub3c4 0.01g)\uc744 50mL \ub9c8\uac1c\uac00 \uc788\ub294 \ud50c\ub77c\uc2a4\ud2f1 \uc6d0\uc2ec\ubd84\ub9ac\uad00\uc5d0 \ub123\uace0, \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 + \uc0ac\uc774\ud074\ub85c\ud5e5\uc0b0 20mL\ub97c \ucca8\uac00\ud558\uc5ec \uade0\uc9c8\ud654\uae30\ub85c 1000r\/min\uc758 \uc18d\ub3c4\ub85c 1\ubd84\uac04 \ucd94\ucd9c\ud55c \ud6c4, 4000r\/min\uc758 \uc18d\ub3c4\ub85c 3\ubd84\uac04 \uc6d0\uc2ec\ubd84\ub9ac\ud558\uace0, \uc0c1\uce35\uc561\uc744 \ub2e4\ub978 \uae68\ub057\ud55c \uad00\uc5d0 \uc62e\uaca8 \ub2f4\uace0 \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 + \uc0ac\uc774\ud074\ub85c\ud5e5\uc0b0 20mL\ub97c \uc0ac\uc6a9\ud558\uc5ec \ucd94\ucd9c \uacfc\uc815\uc744 \ubc18\ubcf5\ud55c\ub2e4. \uc0c1\uce35\uc561\uc744 \ubb34\uc218 \ud669\uc0b0\ub098\ud2b8\ub968 \uceec\ub7fc\uc5d0 \ud1b5\uacfc\uc2dc\ucf1c \ubb3c\uc744 \uc81c\uac70\ud558\uace0, \uc720\ucd9c\uc561\uc744 150mL \ub18d\ucd95\uc561 \ubcd1\uc5d0 \ubaa8\uc740 \ud6c4, 40\u2103 \uc218\uc870\uac00 \uc788\ub294 \ud68c\uc804 \uc99d\ubc1c\uae30\ub85c \uac70\uc758 \uac74\uc870\ub420 \ub54c\uae4c\uc9c0 \ub18d\ucd95\ud55c\ub2e4. \uc794\ub958\ubb3c\uc744 \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 \uc0ac\uc774\ud074\ub85c\ud5e5\uc0b0 10.0mL\uc5d0 \ub179\uc774\uace0, 0.45\u03bcm \uba64\ube0c\ub808\uc778 \ud544\ud130\ub85c \uc5ec\uacfc\ud558\uc5ec \uc815\uc81c\ub420 \ub54c\uae4c\uc9c0 \uae30\ub2e4\ub9b0\ub2e4.<\/p>\n<p>2. \ud638\ub450.<br \/>\n\ud14c\uc2a4\ud2b8 \uc0d8\ud50c\uc758 \uc911\ub7c9 10 (0.01 g)\uc744 50 mL \uc2a4\ud1a0\ud37c \ud50c\ub77c\uc2a4\ud2f1 \uc6d0\uc2ec \ubd84\ub9ac \ud29c\ube0c\ub85c \ub0b4\ub9b0\ub2e4.<\/p>\n<p>3. \ucc28\uc640 \uc591\ud30c<br \/>\n\uc911\ub7c9 2.5 g (0.01g)\uc758 \uc0d8\ud50c\uc744 50 ml \uc2a4\ud1a0\ud37c \ud50c\ub77c\uc2a4\ud2f1 \uc6d0\uc2ec \ubd84\ub9ac\uae30 \ud29c\ube0c\ub85c, 15mL \uc99d\ub958\uc218\ub97c \ucca8\uac00\ud558\uace0 1 \uc2dc\uac04 \ub3d9\uc548.<br \/>\n\uc0c1\uccad\uc561\uc740 \ubb34\uc218 \ud669\uc0b0 \ub098\ud2b8\ub968\uc758 \uceec\ub7fc\uc744 \ud1b5\uacfc\ud558\uc5ec \ubb3c\uc744 \uc81c\uac70\ud558\uace0 150 ml \ub18d\ucd95 \ubb3c \ubcd1\uc5d0 \uc720\ucd9c \ubb3c\uc744 \uc218\uc9d1\ud558\uace0 40 \u2103 \uc218\uc870\ub85c \ud68c\uc804 \uc99d\ubc1c\uae30\uc5d0 \uc758\ud574 \uac70\uc758 \uac74\uc870\uc2dc\ud0a8\ub2e4.<\/p>\n<p>\uccad\uc18c<br \/>\n\uc57c\ucc44 \uacfc\uc77c, \uc2dc\ub9ac\uc5bc, \ud638\ub450, \ub2ed\uac04\uc5d0 \ub300\ud55c GPC \uccad\uc18c.<br \/>\n1. GPC \uc791\ub3d9 \uc870\uac74<br \/>\na) GPC \uceec\ub7fc : 300 mm 10 mm (i. d.), \ubc14\uc774\uc624 \ube44\ub4dc S-X3 \ub610\ub294 \uc774\uc640 \ub3d9\ub4f1\ud55c :<br \/>\nb) \uc774\ub3d9\uc0c1 : \uc0ac\uc774\ud074\ub85c \ud5e5\uc0b0-\uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8 (1+1) :<br \/>\nc) \uc720\ub7c9 : 4. 7ml\/min:<br \/>\nd) \uc0d8\ud50c \ub8e8\ud504\uc5d0\uc11c\uc758 \uc8fc\uc785 \ubd80\ud53c : 5 ml :<br \/>\ne) \uc6a9\uae30 \uc218\uc9d1 \uc2dc\uac04 : 7.5 \ubd84 ~ 12.<\/p>\n<p>2. GPC \uccad\uc18c \ub2e8\uacc4<\/p>\n<p>\uccab \ubc88\uc9f8 \ub2e8\uacc4\uc5d0 \ud45c\uc2dc\ub41c \ub9e4\uac1c \ubcc0\uc218\uc640 \ud568\uaed8 \uc774\uc804\uc5d0 \ud68d\ub4dd \ud55c \uc194\ub8e8\uc158\uc744 GPC \uc5f4\ub85c \uc804\uc1a1\ud558\uc2ed\uc2dc\uc624.<br \/>\n\uc6a9\ub9ac\ub294 \uae68\ub057\ud55c \ud29c\ube0c\ub85c \uc218\uc9d1\ub418\uc5b4 \uc9c8\uc18c\uc758 \ud750\ub984 \ud558\uc5d0\uc11c 35 \u2103\uc5d0\uc11c \uac74\uc870\ub85c \uc99d\ubc1c\ud558\uace0 \uacb0\uc815 \ubc0f \ud615\ud0dc\ub97c \uc704\ud574 1.0 mL \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8\uc5d0\uc11c \uc7ac \uc6a9\ud574\ub41c\ub2e4.<\/p>\n<p>3. \uc2dd\ucd08\uc640 \uafc0\uc744\uc704\ud55c SPE \uccad\uc18c<br \/>\n\uc911\ub7c9 2.5 g\uc758 \uc0d8\ud50c\uc744 \ud50c\ub77c\uc2a4\ud2f1 \uc6d0\uc2ec \ubd84\ub9ac \ud29c\ube0c\ub85c, 5 ml\uc758 \uc99d\ub958\uc218\uc640 \uc640\ub958\ub97c 30 \ucd08 \ub3d9\uc548 \ucca8\uac00\ud569\ub2c8\ub2e4.<\/p>\n<p>4. \ucc28\uc640 \uc591\ud30c\ub97c\uc704\ud55c SPE \uccad\uc18c<br \/>\n\uc774\uc804\uc5d0 \ud68d\ub4dd \ud55c \uc6a9\uc561\uc744 \ud0c4\uc18c -PSA \ud29c\ube0c\ub85c \uc62e\uae30\uace0 1.5 mL\uc758 \uc0ac\uc774\ud074\ub85c \ud5e5\uc0b0 + \uc5d0\ud2f8 \uc544\uc138\ud14c\uc774\ud2b8\ub85c \ud5f9\uad6c\uc2ed\uc2dc\uc624.<\/p>\n<p>GC \uacb0\uc815<br \/>\nGC \uc791\ub3d9 \uc870\uac74<br \/>\na) \uc5f4 : DB-1301 30 m 0. 25 mm (I.D.) x 0. 25 um \ub610\ub294 \uc774\uc640 \ub3d9\ub4f1\ud55c;<br \/>\nb) \uc5f4 \uc628\ub3c4 : 50 \u2103 (20 \u2103\/min) - 200 \u2103 (5 \u2103\/\ubd84) - 260 \u2103 (10 \ubd84).<br \/>\nC) \uc8fc\uc785 \ud3ec\ud2b8 \uc628\ub3c4 : 260 C :<br \/>\nd) ECD \uc628\ub3c4 : 300 C :<br \/>\nE) \uce90\ub9ac\uc5b4 \uac00\uc2a4 : \uc9c8\uc18c (\uc21c\ub3c4&gt; 99.999% \uc720\ub7c9 : 2 ml {{url_placeholder_0});<br \/>\nf) \uc8fc\uc785 \ubaa8\ub4dc : \ubd84\ud560\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<br \/>\ng) \uc8fc\uc0ac \ubd80\ud53c : 1 ul.<\/p>\n<p>GC \uacb0\uc815<br \/>\n\uc0d8\ud50c \uc6a9\uc561\uc5d0\uc11c \ud53c\ub9ac \ub2e4\ubca4 \uc794\uae30\uc758 \ub300\ub7b5\uc801\uc778 \ub18d\ub3c4\uc5d0 \ub530\ub974\uba74, \uc0d8\ud50c \uc6a9\uc561\uacfc \uc720\uc0ac\ud55c \ud53c\ud06c \uba74\uc801\uc744 \uac16\ub294 \ud45c\uc900 \uc791\uc5c5 \uc194\ub8e8\uc158\uc744 \uc120\ud0dd\ud558\uc2ed\uc2dc\uc624.<br \/>\n\uc0c1\uae30 GC \uc870\uac74 \ud558\uc5d0\uc11c, \ud53c\ub9ac \ub2e4\ubca4\uc758 \uccb4\ub958 \uc2dc\uac04\uc740 \uc57d 20.9 \ubd84\uc774\ub2e4.<\/p>\n<p>GC-MS \ud655\uc778<br \/>\nGC-MS \uc791\ub3d9 \uc870\uac74<br \/>\na) \ud06c\ub85c\ub9c8\ud1a0 \uadf8\ub798\ud53c \uceec\ub7fc : 30 m x 0. 25 mm (i. d.)<br \/>\n0. 25 UM \ud544\ub984 \ub450\uaed8 \ubc0f HP-5MS \uc2e4\ub9ac\uce74 \ubaa8\uc138\uad00 \uceec\ub7fc \ub610\ub294 \uc774\uc640 \ub3d9\ub4f1\ud55c;<br \/>\nb) \uc5f4 \uc628\ub3c4 : 50 temperature (\uace0\uc815 1 \ubd84) (10 \u2103\/min) - 280 \u2103 (10 \ubd84);<br \/>\nC) \uc8fc\uc785 \ud56d\uad6c \uc628\ub3c4 : 250 \u2103\uff1b<br \/>\nd) \uc778\ud130\ud398\uc774\uc2a4 \uc628\ub3c4 : 280 \u2103;<br \/>\ne) \uc804\uc790 \uc774\uc628\ud654 \ubaa8\ub4dc : EL;<br \/>\nf) \ub77c\uc774\uc628 \ud654 \uc5d0\ub108\uc9c0 : 70 eV :<br \/>\ng) \uce90\ub9ac\uc5b4 \uac00\uc2a4 : \ud5ec\ub968, \uc21c\ub3c4&gt; 99. 999%, \uc720\ub7c9 1.0 mL\/min:<br \/>\nh) \uc8fc\uc785 \ubaa8\ub4dc : \ubd84\ud560\uc774\uc5c6\uace0 0 \uc774\ud6c4\uc5d0 \ubc38\ube0c\ub97c \uc5fd\ub2c8 \ub2e4.<br \/>\n75 \ubd84 :<br \/>\ni) \uc8fc\uc0ac \ubd80\ud53c : 1 ul :<br \/>\nj) \uacb0\uc815 \ubaa8\ub4dc : SIM :<br \/>\nk) \uc120\ud0dd\ub41c \ubaa8\ub2c8\ud130\ub9c1 \uc774\uc628  (m\/z): 147, 309, 105 :<br \/>\nL) \uc6a9\ub9e4 \ubcf4\ud638 \uc9c0\uc5f0 : 5.0 \ubd84.<\/p>\n<p>GC-MS \ud655\uc778<br \/>\n\uc704\uc758 \uc791\ub3d9 \uc870\uac74\uc5d0 \ub530\ub974\uba74, \ud45c\uc900 \uc194\ub8e8\uc158 \ubc0f \uc0d8\ud50c \uc194\ub8e8\uc158\uc744 \ubd84\uc11d\ud558\uc2ed\uc2dc\uc624. \uc0d8\ud50c \uc194\ub8e8\uc158 \ubc0f \ud45c\uc900 \uc791\uc5c5 \uc194\ub8e8\uc158 \ubaa8\ub450\uc5d0 \ub300\ud574 \ub3d9\uc77c\ud55c \uccb4\uacc4 \uc2dc\uac04\uc5d0 \ud53c\ud06c\uac00 \ub098\ud0c0\ub098\uba74 \ud53c\ud06c\uac00 \ub098\ud0c0\ub0a9\ub2c8\ub2e4.<\/p>\n<p>\ube48 \ud14c\uc2a4\ud2b8<br \/>\n\ube48 \ud14c\uc2a4\ud2b8\ub294 \uc0d8\ud50c \ucca8\uac00\uc5c6\uc774 \uc704\uc758 \uc808\ucc28\uc5d0 \ub530\ub77c \uc218\ud589\ub429\ub2c8\ub2e4.<\/p>\n<p>\uacb0\uc815\uc758 \ud55c\uacc4<br \/>\n\ubcf5\uc22d\uc544, \ubc30, \uc544\uc2a4\ud30c\ub77c\uac70\uc2a4 \uac10\uc790, \uc625\uc218\uc218 \uba54\ubc00, \uafc0, \uc2dd\ucd08, \ud638\ub450, \ub8e8\ube57 \uace0\uae30, \ub2ed\uace0\uae30, \uc0c8\uc6b0, \ud2f0 \uc78e, \uc591\ud30c \ubc0f \ub2ed \uac04\uc758 \uacb0\uc815\uc758 \ud55c\uacc4\ub294 0.01 mg\/kg<\/p>","protected":false},"excerpt":{"rendered":"<p>Principle The pyridaben residues were extracted with Ethyl acetate-Cyclohexane or Acetonitrile, purified by a gel permeation chromatography (GPC) or SPE, determinated by GC-ECD and confirmation by GC-MS. using external standard method. Reagents and materials All the reagents used should be analytically pure unless otherwise specified. &#8220;Water&#8221; is distilled water. 1. Ethyl acetate: HPLC grade. 2. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3338,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[73],"tags":[],"class_list":["post-2802","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-food-and-drugs"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts\/2802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/comments?post=2802"}],"version-history":[{"count":1,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts\/2802\/revisions"}],"predecessor-version":[{"id":4305,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/posts\/2802\/revisions\/4305"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/media\/3338"}],"wp:attachment":[{"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/media?parent=2802"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/categories?post=2802"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pgeneral.com\/ko\/wp-json\/wp\/v2\/tags?post=2802"}],"curies":[{"name":"WP","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}