共查询到20条相似文献，搜索用时 750 毫秒
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Titchener EB 《Science (New York, N.Y.)》1926,64(1666):556-557
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Blackwell AB 《Science (New York, N.Y.)》1881,2(65):443-444
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Castle WA 《Science (New York, N.Y.)》1938,87(2267):531-534
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In a study of the Konig reaction, it was found that nicotinic acid, on reacting with CNBr and certain substituted aromatic amines, yields glutaconic dialdehyde derivatives which fluoresce with a greenish-yellow light in visible violet light of about 440 millimicrons wave-length. A procedure was described which is applicable to 0.1 to 6 micrograms in 5 cc of solution or extract. It is suggested that the principle of preparing fluorescing "tagged" derivatives be applied to other vitamins of the B-complex. 相似文献
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