Dajeong Ji

Gut microbiota-derived metabolite trimethylamine N-oxide as a biomarker in early Parkinson's disease

Seok Jong Chung, John Hoon Rim, Dajeong Ji et al. · Nutrition · 2020 · 67 citations · Full text

Dysbiosis, Biochemistry, Medicine +12

Simultaneous determination of 18 abused opioids and metabolites in human hair using LC–MS/MS and illegal opioids abuse proven by hair analysis

Jihyun Kim, Dajeong Ji, Soyoung Kang et al. · Journal of Pharmaceutical and Biomedical Analysis · 2013 · 50 citations

Opioid Epidemic, Substance Abuse, Abused Opioids +11

Screening of multiple drugs of abuse and metabolites in urine using LC/MS/MS with polarity switching electrospray ionization

Mi-Ok Shin, Dajeong Ji, Soyoung Kang et al. · Archives of Pharmacal Research · 2013 · 21 citations

Medicine, Drug Purity, Mass Spectrometry +10

Development of a comprehensive spectral library of sildenafil and related active analogues using LC–QTOF–MS and its application for screening counterfeit pharmaceuticals

Sooyeun Lee, Dajeong Ji, Meejung Park et al. · Forensic Science International · 2015 · 17 citations

Medicinal Chemistry, Pharmaceutical Science, Comprehensive Spectral Library +11

A sensitive and accurate quantitative method to determine N-arachidonoyldopamine and N-oleoyldopamine in the mouse striatum using column-switching LC–MS–MS: use of a surrogate matrix to quantify endogenous compounds

Dajeong Ji, Choon‐Gon Jang, Sooyeun Lee · Analytical and Bioanalytical Chemistry · 2014 · 15 citations

Mouse Striatum, Column-switching Lc–ms–ms, Medicine +7