Emerging Separation Techniques in Supercritical Fluid Chromatography
Yamamoto, Kazuhiro, Machida, Koichi, Kotani, Akira, Hakamata, Hideki
Published in Chemical & pharmaceutical bulletin (01.10.2021)
Published in Chemical & pharmaceutical bulletin (01.10.2021)
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Journal Article
Electrochemical Analysis for Total Alkalinity of Water by the Measurement of Cathodic Prepeak of Quinone Caused by Surplus Acid
Kotani, Akira, Sakazume, Miyu, Machida, Koichi, Yamamoto, Kazuhiro, Hakamata, Hideki
Published in Chemical & pharmaceutical bulletin (01.03.2024)
Published in Chemical & pharmaceutical bulletin (01.03.2024)
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Journal Article
Determination of Phenolic Compounds in Beverages by Three-Flow Channel Isocratic HPLC with Electrochemical Detections Using a Column-Switching Technique
Sun, Yuwen, Kotani, Akira, Machida, Koichi, Yamamoto, Kazuhiro, Hakamata, Hideki
Published in Chemical & pharmaceutical bulletin (01.01.2022)
Published in Chemical & pharmaceutical bulletin (01.01.2022)
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Journal Article
Electrochemical Determination of Titratable Acidity for the Discrimination of Schisandrae Chinensis Fructus and Schisandrae Sphenantherae Fructus
KOTANI, Akira, KANEKO, Maki, MACHIDA, Koichi, YAMAMOTO, Kazuhiro, HAKAMATA, Hideki
Published in Analytical Sciences (10.08.2020)
Published in Analytical Sciences (10.08.2020)
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Journal Article
A Prototype Portable Voltammetric Sensor for Determining Titratable Acidity of Sake and Moromi
Kotani, Akira, Taniguchi, Kokoro, Machida, Koichi, Yamamoto, Kazuhiro, Hakamata, Hideki
Published in Sensors and materials (02.08.2024)
Published in Sensors and materials (02.08.2024)
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Journal Article
Determination of Amino Acidity in Japanese Sake Based on the Voltammetric Measurement of Surplus Acid by Quinone Reduction
KOTANI, Akira, WATANABE, Jumpei, MACHIDA, Koichi, YAMAMOTO, Kazuhiro, HAKAMATA, Hideki
Published in Denki kagaku oyobi kōgyō butsuri kagaku (15.11.2022)
Published in Denki kagaku oyobi kōgyō butsuri kagaku (15.11.2022)
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Journal Article
Electrochemical determination of emodin in acidic media by high-performance liquid chromatography and its application to Polygoni Multiflori Radix samples
Shiozawa, Aya, Kojima, Yusuke, Kotani, Akira, Machida, Koichi, Yamamoto, Kazuhiro, Hakamata, Hideki
Published in Analytical sciences (01.11.2022)
Published in Analytical sciences (01.11.2022)
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Journal Article
Terpenoids and Sterols from Some Japanese Mushrooms
Yaoita, Yasunori, Kikuchi, Masao, Machida, Koichi
Published in Natural Product Communications (01.03.2014)
Published in Natural Product Communications (01.03.2014)
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Book Review
Journal Article
Determination of Phenolic Compounds in Beverages by Three-Flow Channel Isocratic HPLC with Electrochemical Detections Using a Column-Switching Technique
Yuwen Suna, b, Akira Kotania, Koichi Machidaa, Kazuhiro Yamamotoa, Hideki Hakamataa
Published in Chemical and Pharmaceutical Bulletin (01.01.2022)
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Published in Chemical and Pharmaceutical Bulletin (01.01.2022)
Journal Article
Studies on the Constituents of Juglans Species. I. Structural Determination of (4S)- and (4R)-4-Hydroxy-α-tetralone Derivatives from the Fruit of Juglans mandshurica MAXIM. var. sieboldiana MAKINO
Machida, Koichi, Matsuoka, Erika, Kasahara, Takayuki, Kikuchi, Masao
Published in Chemical & pharmaceutical bulletin (01.08.2005)
Published in Chemical & pharmaceutical bulletin (01.08.2005)
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Journal Article
Two new neolignan glycosides from leaves of Osmanthus heterophyllus
Machida, Koichi, Sakamoto, Shigeaki, Kikuchi, Masao
Published in Journal of natural medicines (01.04.2009)
Published in Journal of natural medicines (01.04.2009)
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Journal Article
Cytotoxic and EGFR tyrosine kinase inhibitory activities of aglycone derivatives obtained by enzymatic hydrolysis of oleoside-type secoiridoid glucosides, oleuropein and ligustroside
Kikuchi, Masafumi, Mano, Nariyasu, Uehara, Yoshimasa, Machida, Koichi, Kikuchi, Masao
Published in Journal of natural medicines (01.01.2011)
Published in Journal of natural medicines (01.01.2011)
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Journal Article
Two new phenolic glycosides from Syringa reticulata
Machida, Koichi, Ohkawa, Naomi, Ohsawa, Asami, Kikuchi, Masao
Published in Journal of natural medicines (01.04.2009)
Published in Journal of natural medicines (01.04.2009)
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Journal Article