著者

北原 滝男 高野 二郎 白井 孝三

出版者

公益社団法人 日本化学会

雑誌

日本化学会誌(化学と工業化学) (ISSN:03694577)

巻号頁・発行日

vol.1987, no.1, pp.122-124, 1987-01-10 (Released:2011-05-30)

参考文献数

8

被引用文献数

1

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The reaction of acridine hydrochloride with aniline in the presence of lead(IV) oxide, peroxides of alkaline earth metals, metal chloride or mercury(II) sulfate as an oxidizing agent was examined. It was disclosed that metal chlorides (such as silver chloride and mercury(II)chloride) were effective to give 9-(4-aminophenyl)acridine in high yields.

著者

北原 滝男 大歳 恒彦 宋 殿棠 関根 嘉香 橋本 芳一 安岡 高志 高野 二郎 光澤 舜明

出版者

社団法人大気環境学会

雑誌

大気環境学会年会講演要旨集

巻号頁・発行日

no.39, 1998-09-24

著者

石原 良美 杉田 大峰 佐久間 翔 北見 秀明 高野 二郎

出版者

公益社団法人 日本分析化学会

雑誌

分析化学 (ISSN:05251931)

巻号頁・発行日

vol.65, no.6, pp.335-338, 2016-06-05 (Released:2016-07-07)

参考文献数

10

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This paper describes a simple analytical method for the determination of L-theanine, a major free amino acid in green tea, by high-performance liquid chromatography (HPLC) with ultraviolet detection (UV). This method provides high linearity of the working curve for calibration as well as repeatability. The correlation coefficient of the working curve for calibration was estimated to be to 0.9991 for L-theanine in the concentration range from 1 mg L−1 to 100 mg L−1. The limit of detection (LOD) was calculated on 3σ at 1 mg L−1 as 0.210 mg L−1 using a standard solution for L-theanine. The limit of quantification (LOQ) was calculated on 10σ at 1 mg L−1 as 0.704 mg L−1 using a standard solution for L-theanine. In addition, the recoveries of spiked the bottled green-tea drinks at concentration levels from 10 to 75 mg L−1 were estimated to be 91.1–99.3%, and the relative standard deviations were 1.04–2.51%. This method could be successfully applied to the determination of the L-theanine in bottled green-tea drinks.

著者

島田 紘 丸 洋子 安岡 高志 高野 二郎 光澤 舜明

出版者

社団法人日本化学会

雑誌

化学と教育 (ISSN:03862151)

巻号頁・発行日

vol.40, no.3, pp.183-185, 1992-03-20

著者

安岡 高志 及川 義道 吉川 政夫 斉藤 章 高野 二郎 光澤 舜明 香取 草之助

出版者

東海大学

雑誌

東海大学紀要. 教育研究所教育工学部門 (ISSN:09151583)

巻号頁・発行日

vol.4, pp.39-43, 1991-11

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The analysis of evaluation of instruction by students can be the most powerful tool available to instructors for the improvement in their own instruction technique. A questionnaire named minute paper soliciting students' evaluation of instruction was given out to the students of 3 courses at Tokai University during 1989 every time. The minute peper has five questions: what are points of important and doubt of this instraction?, how is evaluation by yourself as student in this class?, how is evaluation of this instruction?, What are good items of this instruction?, What are bad items? In this paper, how to use the minute paper, useful point of the minute paper, relationship between evaluation value of the minute paper and total evaluation value of a semester are introduced. The minute paper had 8 useful points : it is possible to make improvement of instruction every time, to see students' understanding and others. The total evaluation value of a semester was higher than it of the minute paper.