Toshimasa Toyo'oka
Shizuoka, 4228526, Japan
Last Updated: 09/26/2026
Save publications for later
Sign Up
Not sure about your diagnosis?
Check Your Symptoms
Found 85 publications
Simultaneous chiral analysis of DL-asp and DL-α-HB with derivatization in human fingernail by UHPLC-MS/MS: an application in colorectal cancer.
Journal: Journal of chromatography. B, Analytical technologies in the biomedical and life sciences
Published: September 24, 2025
Development of a mertansine-specific DNA aptamer and novel high-throughput sandwich enzyme-linked oligonucleotide assay for quantification and characterization of trastuzumab emtansine.
Journal: Biosensors & bioelectronics
Published: October 30, 2024
Simple and fast one-step FRET assay of therapeutic mAb bevacizumab using anti-idiotype DNA aptamer for process analytical technology.
Journal: Talanta
Published: April 01, 2024
Development of an on-site therapeutic drug monitoring method using a portable spectrometer.
Journal: Analytical sciences : the international journal of the Japan Society for Analytical Chemistry
Published: October 30, 2023
Development of a novel method for analysing N-acetyl-DL-leucine enantiomers in human fingernail by UPLC-ESI-MS/MS and the evaluation in diabetes mellitus.
Journal: Clinica chimica acta; international journal of clinical chemistry
Published: March 01, 2023
Precolumn derivatization LC/MS method for observation of efficient hydrogen sulfide supply to the kidney via d-cysteine degradation pathway.
Journal: Journal of pharmaceutical and biomedical analysis
Published: March 28, 2022
Development of a DNA aptamer that binds to the complementarity-determining region of therapeutic monoclonal antibody and affinity improvement induced by pH-change for sensitive detection.
Journal: Biosensors & bioelectronics
Published: October 14, 2021
Rapid chiral discrimination of oncometabolite dl-2-hydroxyglutaric acid using derivatization and field asymmetric waveform ion mobility spectrometry/mass spectrometry.
Journal: Journal of separation science
Published: May 02, 2021
Machine learning guided prediction of liquid chromatography-mass spectrometry ionization efficiency for genotoxic impurities in pharmaceutical products.
Journal: Journal of pharmaceutical and biomedical analysis
Published: June 17, 2020
Development of a selective and sensitive analytical method to detect isomerized aspartic acid residues in crystallin using a combination of derivatization and liquid chromatography mass spectrometry.
Journal: Journal of chromatography. A
Published: December 15, 2019
Bioanalytical methods for therapeutic monoclonal antibodies and antibody-drug conjugates: A review of recent advances and future perspectives.
Journal: Journal of pharmaceutical and biomedical analysis
Published: August 06, 2019
DL-Amino Acid Analysis Based on Labeling with Light and Heavy Isotopic Reagents Followed by UPLC-ESI-MS/MS.
Journal: Methods in molecular biology (Clifton, N.J.)
Published: July 27, 2019
Last Updated: 09/26/2026