Analytical Sciences

Abstract This study investigates the electrochemiluminescence (ECL) behavior of water-soluble cadmium telluride quantum dots (CdTe QDs) synthesized via a microwave-assisted hydrothermal method. The ECL response was examined in the presence of tri-n-propylamine (TPrA) as a coreactant, revealing two anodic ECL emissions, denoted as ECL 1 and ECL 2 , at potentials of + 0.85 V and + 1.2 V, correspond…

Abstract This study was focused on developing a process to objectively determine the release behavior of retronasal aromas in food in real time, which could contribute to the development of foods better suited to consumer preferences. In food, organic compounds with low molecular weight easily vaporize to elicit a retronasal aroma, and such compounds are referred to as volatile. In this study, th…

Accurate glucose analysis has been a major research focus for the past five decades since the pioneering development of enzymatic glucose sensing, driven by the global demand for rapid and reliable diagnostics. In contrast to well-established enzymatic glucose sensors, the development of chemical sensors based on supramolecular receptors remains a developing area. Among the supramolecular recepto…

Microdroplet injection systems, which introduce single cells into an inductively coupled plasma by encapsulating them in droplets, have been developed by several research groups, including our group. In our laboratory, to improve the analytical sensitivity, a droplet desolvation system using a ribbon heater has achieved an approximately tenfold improvement in sensitivity. However, the desolvation…

The early and precise diagnosis of gynecological malignancies, such as cervical cancer, is critical for improving patient treatments. Extracellular vesicles (EVs), such as exosomes, which carry molecular signals from their parental cells, offer a promising method for non-invasive liquid biopsy, however, conventional detection methods are often complex, high in reagent consumption, and susceptible…

This study introduces an environmentally benign liposome-based extraction system that selectively separates and recovers lanthanides (Ln) without requiring an organic solvent. Recovery of Ln, particularly from high-level radioactive liquid waste streams, is critical for resource utilization and reducing long-term radiotoxicity. The proposed system incorporates highly Ln-selective diglycolamic aci…

Cokes are an essential material in the iron and steel industry, and widely used as a fuel and for reducing iron ore. The product properties of cokes are influenced by raw materials and process conditions, which in turn affect its performance. Because raw material components vary depending on the origin and production period, product properties can fluctuate even under the same process conditions,…

A simple method was proposed for the determination of 13 impurity elements (Na, Mg, Al, K, Ca, Ti, Cr, Fe, Co, Ni, Cu, Zn, and Pb) in recycled carbon fibers (rCFs) using pressurized-cavity microwave-assisted acid digestion without hydrofluoric acid (HF) combined with inductively coupled plasma mass spectrometry. Elevating the digestion temperature to 280 °C under pressurized conditions facilitate…