| - | Analytical method development and validation of for the quantification of
24S-, 25- and 27-hydroxycholesterols in the cerebrospinal fluid using
LC-ESI/MS/MS with picolinic derivatization | Eunju Cha; Lee Kang Mi; Eun Sook Jeong; Kim Ho Jun; Kwon, Oh-Seung; Lee Jae Ick |
| - | Development and validation of a method for the quantification of free amino acids in human serum using liquid chromatography-tandem mass spectrometry with an electrospray ionization | Eunju Cha; Eun Sook Jeong; Byungjoo Kim; Joonhee Lee; Kwon, Oh-Seung; Lee Jae Ick |
| - | Development and validation of a quantification method for free amino acids in human plasma to develop the certified reference material using liquid chromatography-tandem mass spectrometry | Eunju Cha; Eun Sook Jeong; Byungjoo Kim; Joonhee Lee; Han Jiyoung; Kwon, Oh-Seung; Lee Jae Ick |
| - | Direct quantitative analysis of prohibited threshold substance by paper spray ionization mass spectrometry | Eun Sook Jeong; Eunju Cha; Ki Hun Kim; Kwon, Oh-Seung; Sangwon Cha; Lee Jae Ick |
| - | Ionization and analysis of polycyclic aromatic hydrocarbons using gas chromatography-electrospray ionization tandem mass spectrometry | Eunju Cha; Eun Sook Jeong; Hanbin Oh; Sunghwan Kim; Sangwon Cha; Lee Jae Ick |
| - | Ionization and sensitivity of polycyclic aromatic hydrocarbons using GC-ESI/MS/MS, GC-APCI/HRMS and LC-ESI/MS/MS | Eunju Cha; Eun Sook Jeong; Hophil Min; Changmin Sung; Kwon, Oh-Seung; Sangwon Cha; Lee Jae Ick |
| - | On-line hydrogen/deuterium exchange of gas-phase molecules using gas chromatography-electrospray ionization/mass spectrometry | Eun Sook Jeong; Eunju Cha; Kim Ho Jun; Kwon, Oh-Seung; Sangwon Cha; Sunghwan Kim; Hanbin Oh; Lee Jae Ick |
| - | Optimization of sample preparation and analytical condition for simultaneous multi-residue analysis of phenols, parabens, phthalates, PAHs, VOCs, cotinine by LC-MS | Minho Yang; Eun Sook Jeong; Hojun Jung; Yong Min Cho; Eunju Cha; HanSang Moon; Lee Seunghwa; Sangwon Cha; Sang Beom Han; Lee Jae Ick; Hosub Im |
| - | Paper spray ionization/high resolution mass spectrometric method for rapid quantitative analysis of ephedrines in human urine | Eun Sook Jeong; Eunju Cha; Ki Hun Kim; Kim Ho Jun; Lee Kang Mi; Hophil Min; Kwon, Oh-Seung; Sangwon Cha; Lee Jae Ick |
| - | Practical and economical online H/D exchange technique using electrospray ionization/ mass spectrometry coupled with gas chromatography | Eun Sook Jeong; Eunju Cha; Lee Kang Mi; Kim Ho Jun; SON Junghyun; Ki Hun Kim; Ju-Hyung Park; Hophil Min; Changmin Sung; Kwon, Oh-Seung; Lee Jae Ick |
