1968
DOI: 10.1021/jf60159a006
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Determination of sulfadimethoxine in animal tissues

Abstract: A method is described for the determination of residue levels of sulfadimethoxine in animal tissues. The sulfonamide is extracted from the tissues with chloroform, partitioned into dilute ammonia, and reacted in the Bratton-Marshall procedure. The dye formed is extracted into «-butanol prior to colorimetry. As little as 0.1 p.p.m. of sulfadime-thoxine was accurately determined in this fashion on a 10-gram tissue sample. Average recovery for all tissues ranged from 70 to 90%. Nonspecific Bratton-Marshall color … Show more

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Cited by 19 publications
(14 citation statements)
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“…Several publications (3,(5)(6)(7) reported the recoveries of sulfonamides utilizing the colorimetric assays, and all reported values of 7546%. Only Houston and Umstead (7) reported on sulfamethazine, and these results were a combination of sulfamethazine-sulfathiazole residues in milk.…”
Section: Discussionmentioning
confidence: 99%
“…Several publications (3,(5)(6)(7) reported the recoveries of sulfonamides utilizing the colorimetric assays, and all reported values of 7546%. Only Houston and Umstead (7) reported on sulfamethazine, and these results were a combination of sulfamethazine-sulfathiazole residues in milk.…”
Section: Discussionmentioning
confidence: 99%
“…Bu nedenle, çözeitide renk geIiştirme esasına dayanan yöntemler ile, özellikle tarama nitelikli bir çalışmada, her zaman hatalı sonuçlar elde edilmesi ve değerlen-dirmeler yapılması mümkün olabilmektedir (6,13,29,30). Bu tür interferensler bazı yöntemlerde renk reaksiyonu şekillendirilmeden önce (1, 30) yada sonra (12) ortam alkali yapılarak kloroformla ekstraksiyonla ortamdan etkin bir biçimde uzaklaştırılabildikleri belirtilmiştir.…”
Section: Tartışnıa Ve Sonuçunclassified
“…1 ppm (6,28,30) ile 0.05 ppm (9,23) gibi dar sınırlar arasında değişmektedir. lJyarlanan yöntemle elde edilen duyarlılık düzeyinin sıralanan aynı nitelikli bu verilerle uygunluk gösterdiği kolayca anlaşılır.…”
Section: Tartışnıa Ve Sonuçunclassified
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