YAKUGAKU ZASSHI
Online ISSN : 1347-5231
Print ISSN : 0031-6903
ISSN-L : 0031-6903
分光反射率測定の分析的応用に関する研究 (第2報)
各種2,4-ジニトロフェニルヒドラゾンの表面色の測定
山口 一孝福島 清吾太幡 利一伊藤 みよ子
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1954 年 74 巻 12 号 p. 1327-1332

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Thirty-two kinds of 2, 4-dinitrophenylhydrazones were prepared of three aliphatic and eight terpenoid carbonyl compounds, furfural, 5-nitrofurfural, eleven aromatic aldehydes, and eight aromatic ketones. Their surface color was compared by photo-reflectance measured in the range of 400-700mμ with the Beckman Spectrophotometer with diffuse attachment. From the data obtained, reflectance ratio in the different wave lengths and saturated reflectance were compared. By comparing the characteristics of the inclination and the wave length at the standing point of the reflectance curves, it was found possible to represent a delicate difference in the color tone.

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© by the PHARMACEUTICAL SOCIETY OF JAPAN
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