1. Hitoshi Mizuguchi, Hiroto Takeda, Kyosuke Kinoshita, Masaki Takeuchi, Toshio Takayanagi, Norio Teramae, William Pipkin, Kazuko Matsui, Atsushi Watanabe, Chuichi Watanabe, "Direct analysis of airborne microplastics collected on quartz filters by pyrolysis-gas chromatography/mass spectrometry" Journal of Analytical and Applied Pyrolysis, 171, 105946 (2023).
  2. Maria Shichijo, Kazumasa Okamoto, Toru Takahashi, Miharu Nomura, Shin-ichi Ohira, Hitoshi Mizuguchi, Hideji Tanaka, Masaki Takeuchi, "Feedback standard addition method coupled flow injection analysis –Validation by spectrophotometric determination of nitrite in seawater–", Microchemical Journal, 190, 108721 (2023).
  3. Masaki Takeuchi, Shinya Nakagawa, Hiroki Watanabe, Hideji Tanaka, Takaharu Isobe, Hiroko Ogata, Hiroshi Okochi, "Practical usefulness of observing the free tropospheric acidic gases with a parallel plate wet denuder coupled ion chromatograph" Atmospheric Environment: X, 18, 100213 (2023).
  4. Madoka Nishimura, Yukari Nakaya; Mao Kashimoto, Shoji Imai, Hideji Tanaka, Masaki Takeuchi, "Determination of trace perchlorate in river water by ion chromatography with online matrix removal and sample concentration" Analytical Sciences, 39, 689-694 (2023).
  5. Naoya Kakiuchi, Masaki Takeuchi, Hideji Tanaka, "Integrated continuous flow method with dual feedback-based controls for online analysis and process control" Analytical Sciences, 5, 755-759 (2023).
  6. Haruka Tanaka, Makoto Namikawa, Naoya Tomiyasu, Hideji Tanaka, Masaki Takeuchi, "Parallel plate wet denuder coupled ammonia transfer device-conductivity detector for near-real-time monitoring of gaseous ammonia" 5, 100091 (2022).
  7. Masaki Takeuchi, Naoya Tomiyasu, Makoto Namikawa, Hideji Tanaka, Kei Toda, Naoya Katsumi, Hiroshi Okochi, "On-line analysis of free-tropospheric water-soluble acidic gases and particulate anions on the summit of Mt. Fuji, Japan" Atmospheric Environment, 273, 118977 (2022).
  8. Hideji Tanaka, Wada Riona, Yanase Masatoshi, Tomiyama Erina, Akira Ohbuchi, Higuchi Keiro, Masaki Takeuchi, "Triangular-wave controlled amplitude-modulated flow analysis for extending dynamic range to saturated signals" Analytical Sciences, 38, 795-802 (2022).
  9. Naoya Kakiuchi, Junya Ochiai, Masaki Takeuchi, Hideji Tanaka, "Inner product of RGB unit vectors for detecting color transition. Application to feedback-based flow ratiometric titration" Analytical Sciences, 38, 623-626 (2022).
  10. Hiroki Watanabe, Jun Sugiura, Hideji Tanaka, Petr Kubáň, Masaki Takeuchi, "Miniaturized low-pressure ion-exchange module and its application to an acidic eluent generator for open tubular ion chromatography" J. Flow Inject. Anal. 38, 11-14 (2021).
  11. Hideji Tanaka, Yohei Kurokawa, Masaki Takeuchi, Akira Ohbuchi, "Amplitude modulated flow analysis for speciation—Proof of concept by quantification of Fe2+ and Fe3+ ions" Talanta Open 3, 100031 (2021).
  12. Motofumi Suzuki, Atsumi Urabe, Sayaka Sasaki, Ryo Tsugawa, Satoshi Nishio, Haruka Mukaiyama, Yoshiko Murata, Hiroshi Masuda, May Sann Aung, Akane Mera, Masaki Takeuchi, Keijo Fukushima, Michika Kanaki, Kaori Kobayashi, Yuichi Chiba, Binod Babu Shrestha, Hiromi Nakanishi, Takehiro Watanabe, Atsushi Nakayama, Hiromichi Fujino, Takanori Kobayashi, Keiji Tanino, Naoko K. Nishizawa, Kosuke Namba, "Development of a mugineic acid family phytosiderophore analog as an iron fertilizer" Nat. Commun. 12, 1558 (2021)
  13. Naoya Kakiuchi, Junya Ochiai, Masaki Takeuchi, Hideji Tanaka, "Inner product of RGB unit vectors for simple and versatile detection of color transition" Anal. Sci. 37, 3-5 (2021).
  14. Yuta Otsuka, Hiroki Watanabe, Hideji Tanaka, Masaki Takeuchi, "Quantification of overlapped peaks with partial least squares regression: Open tubular ion chromatography for sodium and ammonium ions" J. Flow Injection Anal. 37, 73-77 (2020)
  15. Junya Ochiai, Sawako Oka, Tomoko Hirasaka, Erina Tomiyama, Hiroya Kubo, Kazumasa Okamoto, Masaki Takeuchi, Hideji Tanaka, "Introduction of air-segmentation approach to flow titration by feedback-based and subsequent fixed triangular wave-controlled flow ratiometry" Anal. Sci. 36, 703-708 (2020).
  16. Hitoshi Mizuguchi, Daichi Nishimori, Tomohiko Kuwabara, Masaki Takeuchi, Masamitsu Iiyama, Toshio Takayanagi, "Track-etched membrane-based dual-electrode coulometric detector for microbore/capillary high-performance liquid chromatography" Anal. Chim. Acta 1102, 46-52 (2020).
  17. Yuta Otsuka, Akira Ito, Masaki Takeuchi, Tetsuo Sasaki, Hideji Tanaka, "Effects of temperature on terahertz spectra of caffeine/oxalic acid 2:1 cocrystal and its solid-state density functional theory" J. Drug Deliv. Sci. Tec. 56, 101215 (2020).
  18. Akira Ito, Yuta Otsuka, Masaki Takeuchi, Hideji Tanaka, "Mechanochemical synthesis of zinc chloroapatite and evaluation of its crystallinity by attenuated total reflection - infrared spectroscopy and principal component analysis" Phos. Res. Bull. 35, 16-22 (2019).
  19. Aiko Miyazaki, Naoya Kakiuchi, Kazumasa Okamoto, Masaki Takeuchi, Hideji Tanaka, "Unprecedented high throughput titration by feedback-based and subsequent fixed triangular wave-controlled flow ratiometry and its application to quantification of Japanese Pharmacopoeia drugs" J. Flow Injection Anal. 36, 97-100 (2019).
  20. Yuta Otsuka, Akira Ito, Saki Matsumura, Toru Takahashi, Masaki Takeuchi, Hideji Tanaka, "Bilayer Tablet Dissolution Kinetics Based on A Degassing Cyclic Flow UV-vis Spectroscopy with Chemometrics" Chem. Pharm. Bull., 67, 361-366 (2019).
  21. Yuta Otsuka, Akira Ito, Masaki Takeuchi, Hideji Tanaka, "Effect of Amino Acid on Calcium Phosphate Phase Transformation: Attenuated Total Reflectance-Infrared Spectroscopy and Chemometrics Analysis" Colloid Polym. Sci., 297, 155-163 (2019).
  22. Yuta Otsuka, Akira Ito, Suvra Pal, Mitome Hajime, Masaki Takeuchi, Hideji Tanaka, "Prediction of Differential Scanning Calorimetry Curve of Theophylline Direct Compression Model Tablet Using Raman Spectra" J. Drug Deliv. Sci. Tec., 49, 254-259 (2019).
  23. Naoya Katsumi, Shuhei Miyake, Hiroshi Okochi, Yukiya Minami, Hiroshi Kobayashi, Shungo Kato, Ryuichi Wada, Masaki Takeuchi, Kei Toda, Kazuhiko Miura, "Humic‑Like Substances Global Levels and Extraction Methods in Aerosols" Environ. Chem. Lett., 17, 1023-1029 (2019).
  24. Masaki Takeuchi, Miharu Nomura, Maria Shichijo, Hideji Tanaka, "Flow Injection Analysis of Nitrite Nitrogen in Seawater Introducing Standard Addition Method" J. Flow Inject. Anal. 35, 59-61 (2018).
  25. Masaki Takeuchi, Yuki Miyazaki, Hideji Tanaka, Takaharu Isobe, Hiroshi Okochi, Hiroko Ogata,"High Time-Resolution Monitoring of Free-Tropospheric Sulfur Dioxide and Nitric Acid at the Summit of Mt. Fuji, Japan" Water Air  Soil Pollut. 228 Article: 325 (2017). 
  26. Naoya Kakiuchi, Aiko Miyazaki, Akihiro Fujikawa, Masaki Takeuchi, Hideji Tanaka, "High Throughput Titration Based on Variable and Fixed Triangular Wave Controlled Flow Ratiometry with LED-Photodiode Detector" J. Flow Inject. Anal. 34, 11-14 (2017).
  27. Takuya Sumitomo, Mari Osaki, Takeshi Ogusu, Masaki Takeuchi, Hideji Tanaka, "Internal Standard-Amplitude Modulated Multiplexed Flow Analysis" Anal. Sci.33, 1363-1368 (2017).
  28. Akira Ito, Yuta Otsuka, Masaki Takeuchi, Hideji Tanaka, "Mechanochemical Synthesis of Chloroapatite and Its Characterization by Powder X-ray Diffractometory and Attenuated Total Reflection - Infrared Spectroscopy" Colloid Polym. Sci.295, 2011-2018 (2017).
  29. Yuta Otsuka, Akira Ito, Masaki Takeuchi, Hideji Tanaka, "Dry Mechanochemical Synthesis of Caffeine / Oxalic Acid Cocrystals and Their Evaluation by Powder X-ray Diffraction and Chemometrics" J. Pharm. Sci. 106, 3458-3464 (2017).
  30. Yuta Otsuka, Akira Ito, Saki Matsumura, Masaki Takeuchi, Suvra Pal, Hideji Tanaka, "Quantification of Pharmaceutical Compounds Based on Powder X-ray Diffraction with Chemometrics" Chem. Pharm. Bull. 64, 1129-1135 (2016).
  31. Masaki Takeuchi, Naoyuki Miki, Kiichi Ishimine, Hideji Tanaka, "Nafion Membrane Tube-Based On-Line Concentrator. Application to Urinary Orotic Acid Determined by Suppressed Ion Chromatography" J. Flow Inject. Anal., 32, 97-100 (2015).
  32. Hiroya Kubo, Azumi Miyazaki, Kazunori Kuritani, Masaki Takeuchi, Hideji Tanaka, "Cobalt(III) Pretreatment for Total Phosphorus Detemination" Phosphorus Research Bulletin,30, 26-29 (2015).
  33. Koji Inui, Haruka Yoshida, Masaki Takeuchi, Hideji Tanaka, "Application of Air Segmented Amplitude Modulated Multiplexed Flow Analysis with Software-Based Phase Recognition to the Determination of Ammonium Ion in Water Samples" J. Flow Inject. Anal., 32,5-8 (2015).
  34. Yuta Otsuka, Akira Ito, Saki Matsumura, Masaki Takeuchi, Hideji Tanaka, "Effect of Hydroxypropyl Cellulose and Hydroxypropyl Methylcellulose on Carbamazepine Polymorphic Transformation; Attenuated Total Reflectance-Infrared Spectroscopy and Chemoinformatics Analysis" Colloid and Polymer Science, 293, 3471-3478 (2015).
  35. Yuta Otsuka, Masaki Takeuchi, Makoto Otsuka, Besim Ben-Nissan, David Grossin, Hideji Tanaka, "Effect of Carbon Dioxide on Self-Setting Apatite Cement Formation from Tetracalcium Phosphate and Dicalcium Phosphate Dihydrate; ATR-IR and Chemoinformatics Analysis" Colloid and Polymer Science, 293, 2781-2788 (2015).
  36. Kei Toda, Satoru Yunoki, Akira Yanaga, Masaki Takeuchi, Shin-Ichi Ohira, Purnendu K. Dasgupta, "Formaldehyde Content of Atmospheric Aerosol" Environ. Sci. Technol., 48, 6636-6643 (2014).
  37. Takeshi Ogusu, Katsuya Uchimoto, Masaki Takeuchi, Hideji Tanaka, "Air Segmented - Amplitude Modulated Multiplexed Flow Analysis with Software-Based Phase Recognition.  Determination of Phosphate Ion" Talanta, 118, 123-128 (2014). 
  38. Masaki Takeuchi, Masato Izumi, Mizuki Watanabe, Hideji Tanaka, Tomoaki Obata, Kei Toda, "Surface Modified Annular Wet Denuder for the Collection of Water-Soluble Trace Gases"
    Anal. Methods, 5, 6071-6075 (2013). 
  39. Masaki Takeuchi, Yuki Miyazaki, Hiromichi Tsunoda, Hideji Tanaka, "Atmospheric Acid Gases in Tokushima, Japan, Monitored with Parallel Plate Wet Denuder
    Coupled Ion Chromatograph" Anal. Sci., 29, 165-168 (2013).
  40. Masaki Takeuchi, Kaoru Yoshioka, Yusuke Toyama, Ai Kagami, Hideji Tanaka, "On-Line Measurement of Perchlorate in Atmospheric Aerosol Based on Ion Chromatograph Coupled with Particle Collector and Post-Column Concentrator" Talanta, 97, 527-532 (2012).
  41. Koji Inui, Takeshi Uemura, Takeshi Ogusu, Masaki Takeuchi, Hideji Tanaka, "Air-Segmented Amplitude-Modulated Multiplexed Flow Analysis" Anal. Sci., 27, 305-308 (2011).
  42. Masaki Takeuchi, Hiromichi Tsunoda, Hideji Tanaka, Yoshimi Shiramizu, "Parallel-Plate Wet Denuder Coupled Ion Chromatograph for Near-Real-Time Detection of Trace Acidic Gases in Clean Room Air" Anal. Sci., 27, 805-810 (2011).
  43. Kei Toda, Tomoaki Obata, Vladimir A. Obolkin, Vladimir L. Potemkin, Kazutoshi Hirota, Masaki Takeuchi, Shou Arita, Tamara V. Khodzher, Michael A. Grachev, "Atmospheric Methanethiol Emitted from a Pulp and Paper Plant on the Shore of Lake Bikal" Atmos. Environ., 44, 2427-2433 (2010).
  44. Takeshi Uemura, Takeshi Ogusu, Masaki Takeuchi, Hideji Tanaka, "Spectrophotometric Determination of Trace Phosphate Ion by Amplitude Modulated Flow Analysis Coupled with Malachite Green Method" Anal. Sci., 26, 797-801 (2010).
  45. Yohei Kurokawa, Masaki Takeuchi, Hideji Tanaka, "Investigation on Analytical Parameters for Amplitude Modulated Multiplexed Flow Analysis" Anal. Sci., 26, 791-796 (2010).
  46. Vladimir A. Obolkin, Vladimir L. Potemkin, Tamara V. Khodzher, Ludmila P. Golobokova, Ulyana G. Filippova, Vladimir L. Makukhin, Kei Toda, Masaki Takeuchi, Tomoaki Obata, Kazutoshi Hirota, "Dynamics of Sulfur-Containing Admixtures in the Atmosphere around the Point Source – the Baikal Pulp and Paper Plant on Southeast Coast of Lake Baikal" Atmospheric and Oceanic Optics, 23, 32- 38 (2010).
  47. Tursunjan Aydan, Masaki Takeuchi, Hideji Tanaka, "Spectrophotometric Determination of Anionic Surfactant Based on Ion-pair Formation with Methylene Blue in Reversed Flow Injection Mode" J. Flow Inject. Anal., 26, 133-137 (2009).
  48. Xiangli Liu, Hossam Hefesha, Hideji Tanaka, Alfred Fahra, "Lipophilicity Measurement of Drugs by Reversed Phase HPLC over Wide pH Range Using an Alkaline-Resistant Silica-Based Stationary Phase, XBridgeTM Shield RP18" Chem. Pharm. Bull., 56, 1417-1422 (2008).
  49. Tursunjan Aydan, Ayumi Kitagawa, Masaki Takeuchi, Hideji Tanaka, "Application of Feedback-Based Flow Ratiometry to Simultaneous Determination of Calcium and Magnesium Ions by Chelatometry Using Photometric and Potentiometric Detectors" J. Flow Inject. Anal., 25, 65-68 (2008).
  50. Hideji Tanaka, Takuto Mima, Masaki Takeuchi, Hitoshi Iida, "Amplitude Modulated Multiplexed Flow Analysis" Talanta, 77, 576-580 (2008).
  51. Masaki Takeuchi, Qingyang Li, Bingcheng Yang, Purnendu K. Dasgupta, Vincent E. Wilde, "Use of a Capacitance Measurement Device for Surrogate Noncontact Conductance Measurement" Talanta, 76, 617-620 (2008).
  52. Bingcheng Yang, Masaki Takeuchi, Purnendu K. Dasgupta, "On-Line Gas-Free Electrodialytic Eluent Generator for Capillary Ion Chromatography" Anal. Chem., 80, 40-47 (2008).
  53. Masaki Takeuchi, Purnendu K. Dasgupta, Jason V. Dyke, Kannan Srinivasan, "Postcolumn Concentration in Liquid Chromatography: On-Line Eluent Evaporation and Analyte Postconcentration in Ion Chromatography" Anal. Chem., 79, 5690-5697 (2007).
  54. Bingcheng Yang, Masaki Takeuchi, Purnendu K. Dasgupta, Yomonari Umemura, Yuji Ueki, Kin-Ichi Tsunoda, "Tailoring Elution of Tetraalkylammonium Ions: Ideal Electrostatic Selectivity Elution Order on a Polymeric Ion Exchanger" Anal. Chem., 79, 769-772 (2007). 
  55. Rahmat S. M. Ullah, Masaki Takeuchi, Purnendu K. Dasgupta, "A Versatile Gas Particle Ion Chromatograph" Environ. Sci. Technol., 40, 962-968 (2006).
  56. Masaki Takeuchi, Rahmat S. M. Ullah, Purnendu K. Dasgupta, Donald R. Collins, Allen Williams, "Continuous Collection of Soluble Atmospheric Particles with a Wetted Hydrophilic Filter" Anal. Chem., 77, 8031-8040 (2005).
  57. Masaki Takeuchi, Jianzhong Li, Kavin J. Morris, and Purnendu K. Dasgupta, "Membrane Based Parallel Plate Denuder for the Collection and Removal of Soluble Atmospheric Gases" Anal. Chem., 76, 1204-1210 (2004).
  58. Masaki Takeuchi, Hiroshi Okochi, Manabu Igawa, "Characteristics of Water-Soluble Components of Atmospheric Aerosols in Yokohama and Mt. Oyama, Japan from 1990 to 2001" Atmos. Environ., 38, 4701-4708 (2004).
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