1. Guest editorial: Novel analytical approaches toward SDGs

   • Yoshiki Sohrin
   • Kei Toda

   Special Issue: Editorial 10 April 2023 Pages: 627 - 627

2. Progress and current trends in the electrochemical determination of phosphate ions for environmental and biological monitoring applications

   • Shaimah Rinda Sari
   • Masato Tominaga

   Special Issue: Review 04 December 2022 Pages: 629 - 642

   

3. Optical collection of extracellular vesicles in a culture medium enhanced by interactions with gold nanoparticles

   • Yumeki Tani
   • Kenta Ochiai
   • Takashi Kaneta

   Special Issue: Original Paper 05 November 2022 Pages: 643 - 651

   

4. Cost-effective formaldehyde assay platform for multi-sample analysis in one run based on pervaporation coupled with a biodegradable sensor and a simple heat control unit

   • Chonnipa Yeerum
   • Kanokwan Kiwfo
   • Monnapat Vongboot

   Special Issue: Original Paper 27 November 2022 Pages: 653 - 662

   

5. Direct analysis of biodegradable chelating agents based on liquid chromatography/electrospray ionization mass spectrometry using a metal-free hydrophilic interaction liquid chromatographic column

   • Takaya Murakami
   • Ryoichi Wakata
   • Hiroshi Hasegawa

   Special Issue: Original Paper 24 December 2022 Pages: 663 - 670

   

6. Radioactive isotope separation with 3D-printed flow-based device

   • Syohei Obata
   • Yumi Sugo
   • Shin-Ichi Ohira

   Special Issue: Original Paper 13 January 2023 Pages: 671 - 677

   

7. Investigation of the concentration ratios of anthropogenic metal elements in fresh snow at mountain area as a tracer for the discrimination between short- and long-range transport contributions

   • Yuhei Yamamoto
   • Kentaro Oka
   • Shoji Imai

   Special Issue: Original Paper 17 January 2023 Pages: 679 - 687

   

8. Determination of trace perchlorate in river water by ion chromatography with online matrix removal and sample concentration

   • Madoka Nishimura
   • Yukari Nakaya
   • Masaki Takeuchi

   Special Issue: Original Paper 12 January 2023 Pages: 689 - 694

   

9. Solid-phase extraction of palladium, platinum, and gold from water samples: comparison between a chelating resin and a chelating fiber with ethylenediamine groups

   • Misato Iwase
   • Kota Isobe
   • Yoshiki Sohrin

   Special Issue: Original Paper Open access 19 January 2023 Pages: 695 - 704

   

10. Antioxidants encapsulated milk-derived exosomes for functional food development

    • Yuhei Onizuka
    • Kazuya Fujita
    • Noritada Kaji

    Special Issue: Original Paper 04 February 2023 Pages: 705 - 712

    

11. Improvement of recovery yield of macro-organismal environmental DNA from seawater samples

    • Qianqian Wu
    • Toshifumi Minamoto

    Special Issue: Original Paper Open access 09 February 2023 Pages: 713 - 720

    

12. An efficient environmental DNA detection method for rare species: a case study of a small salamander (Hynobius boulengeri)

    • Masayuki K. Sakata
    • Daiki Takeshita
    • Toshifumi Minamoto

    Special Issue: Original Paper 01 March 2023 Pages: 721 - 728

    

13. Development of a dye nanoparticle-loaded test strip for the Zn(II) determination in metal plating wastes

    • Keiko Takano
    • Takuya Yoshida
    • Yukiko Takahashi

    Special Issue: Original Paper 03 March 2023 Pages: 729 - 737

    

14. Dynamic sequential extraction procedure using a four-channel circulating flow system for extracting Hg from soil samples

    • Tomotaka Doi
    • Shinichi Hamasaki
    • Daisuke Kozaki

    Special Issue: Original Paper 21 March 2023 Pages: 739 - 748

    

15. Novel chemically cross-linked self-molding particulate sorbents as solid-phase extraction media

    • Yuta Miki
    • Hiroya Murakami
    • Norio Teshima

    Special Issue: Note 24 August 2022 Pages: 749 - 754

    

16. Integrated continuous flow method with dual feedback-based controls for online analysis and process control

    • Naoya Kakiuchi
    • Masaki Takeuchi
    • Hideji Tanaka

    Special Issue: Note 23 October 2022 Pages: 755 - 759

    

17. Gradient elution of hydroxyacetophenones by supercritical fluid chromatography with electrochemical detection

    • Kazuhiro Yamamoto
    • Koichi Machida
    • Hideki Hakamata

    Special Issue: Note 28 December 2022 Pages: 761 - 765

    

18. Correction: Separation of long-stranded RNAs by RP-HPLC using an octadecyl-based column with super-wide pores

    • Tomomi Kuwayama
    • Makoto Ozaki
    • Tsunehisa Hirose

    Correction 02 March 2023 Pages: 767 - 767