2015-07 | A HT column GC/MS method for the determination of anthraquinone and its toxic impurities in paper products | Yang, Ki-Ryeol; Seo, Hee Seung; Lee, Yong Sup; Choi, Man Ho; Hong, Jongki |
2021-08-14 | A solvent-free headspace GC/MS method for sensitive screening of N-nitrosodimethylamine in drug products | Lee, Do Hee; Hwang, Su Hyeon; Park, Seoungchul; Lee, Jeongmi; Oh, Han Bin; Han, Sang Beom; Liu, Kwang-Hyun; Lee, Yong-Moon; Pyo, Hee Soo; Hong, Jongki |
2021-03 | Alterations in Pattern Baldness According to Sex: Hair Metabolomics Approach | Lee, Yu Ra; Lew, Bark Lynn; Sim, Woo Young; Hong, Jongki; Chung, Bong Chul |
2019-11 | Altered polyamine profiling in the hair of patients with androgenic alopecia and alopecia areata | Lee, Yu Ra; Lew, Bark Lynn; Sim, Woo Young; Lee, Jeongae; Hong, Jongki; Chung, Bong Chul |
2020-03 | Assessing the progression of gastric cancer via profiling of histamine, histidine, and bile acids in gastric juice using LC-MS/MS | Lee, Wonwoong; Um, Jinhee; Hwang, Boram; Lee, Yong Chan; Chung, Bong Chul; Hong, Jongki |
2014-04 | Changes in steroid metabolism among girls with precocious puberty may not be associated with urinary levels of bisphenol A | Lee, Su Hyeon; Kang, Se Mi; Choi, Man Ho; Lee, Jeongae; Park, Mi Jung; Kim, Shin Hye; Lee, Won-Yong; Hong, Jongki; Chung, Bong Chul |
2009-07-20 | Chemical Derivatization of Catecholamines for Gas Chromatography-Mass Spectrometry | Park, Sun-Young; Kang, Bo-Xin; Quing-Li; Kim, Hoon Sik; Lee, Jungae; Hong, Jongki |
2013-07-05 | Comprehensive impurity profiling and quantification of Sudan III dyes by gas chromatography/mass spectrometry | Hong, Ji Yeon; Park, Na Hyun; Yoo, Kyung Ho; Hong, Jongki |
2008-10-24 | Determination of organochlorine pesticides in sediment using graphitized carbon black solid-phase extraction and gas chromatography/mass spectrometry | Kim, Min-Sun; Kang, Tae Woo; Pyo, Heesoo; Yoon, Junheon; Choi, Kyunghee; Hong, Jongki |
2019-09 | Distribution of polyamines may be altered in different scalp regions of patients with hair loss | Lee, Yu Ra; Lee, Jeongae; Lew, Bark Lynn; Sim, Woo Young; Hong, Jongki; Chung, Bong Chul |
2015-06-15 | Effective application of freezing lipid precipitation and SCX-SPE for determination of pyrrolizidine alkaloids in high lipid foodstuffs by LC-ESI-MS/MS | Yoon, Soo Hwan; Kim, Min-Sun; Kim, Sang Hoon; Park, Hyun Mee; Pyo, Heesoo; Lee, Yong Moon; Lee, Kyung-Tae; Hong, Jongki |
2011-12-01 | Extractive ethoxycarbonylation in high-temperature gas chromatography mass spectrometry based analysis of serum estrogens | Moon, Ju-Yeon; Kang, Se Mi; Moon, Myeong Hee; Hong, Jongki; Kim, Ki Tae; Jeong, Dae Hoon; Kim, Young Nam; Chung, Bong Chul; Choi, Man Ho |
2015-05-15 | Identification of alkaloid constituents from Fangchi species using pH control liquid-liquid extraction and liquid chromatography coupled to quadrupole time-of-flight mass spectrometry | Sim, Hee-Jung; Yoon, Soo Hwan; Kim, Min Sun; Kim, Byungjoo; Park, Hyun-Mee; Hong, Jongki |
2017-04-15 | Metabolic profiling of tyrosine, tryptophan, and glutamate in human urine using gas chromatography-tandem mass spectrometry combined with single SPE cleanup | Shin, Hyun Ju; Park, Na Hyun; Lee, Wonwoong; Choi, Man Ho; Chung, Bong Chul; Hong, Jongki |
2022-10 | Metabolites identification for major active components of Agastache rugosa in rat by UPLC-Orbitap-MS: Comparison of the difference between metabolism as a single component and as a component in a multi-component extract | Jang, Ah-kyung; Rashid, Md Mamunur; Lee, Gakyung; Kim, Doo-Young; Ryu, Hyung Won; Oh, Sei-Ryang; Park, Jinyoung; Lee, Hyunbeom; Hong, Jongki; Jung, Byung Hwa |
2016-06 | METABOLOMIC AND QUANTITATIVE APPROACH TO EFFECT OF AGING ON BILE COMPOSITION | Lee, Gakyung; Jung, Byung Hwa; Hong, Jongki |
- | Monitoring of semivolatile organic compounds in whole blood using HS SPME-GC/MS | Chae, Hyojin; Woo, Seoyeon; Kim, Seungki; Pyo, Hee Soo; Hong, Jongki |
2013-12-01 | Profiling analysis of biogenic amines and their acidic metabolites in mouse brain tissue using gas chromatography-tandem mass spectrometry | Hong, Joo Yeon; Park, Na Hyun; Oh, Myung Sook; Lee, Hye-Sook; Pyo, Heesoo; Hong, Jongki |
2017-12-01 | Profiling of a wide range of neurochemicals in human urine by very-high-performance liquid chromatography-tandem mass spectrometry combined with in situ selective derivatization | Lee, Wonwoong; Park, Na Hyun; Ahn, Tae-Beom; Chung, Bong Chul; Hong, Jongki |
2021-02 | Profiling of Steroid Metabolic Pathways in Human Plasma by GC-MS/MS Combined with Microwave-Assisted Derivatization for Diagnosis of Gastric Disorders | Lee, Wonwoong; Lee, Hyunjung; Kim, You Lee; Lee, Yong Chan; Chung, Bong Chul; Hong, Jongki |
2013-07 | Quantitative analysis of organochlorine pesticides in human serum using headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry | Kim, Miok; Song, Na Rae; Hong, Jongki; Lee, Jeongae; Pyo, Heesoo |
2016-09-15 | Quantitative profiling of bile acids in rat bile using ultrahigh-performance liquid chromatography-orbitrap mass spectrometry: Alteration of the bile acid composition with aging | Lee, Gakyung; Lee, Hyunbeom; Hong, Jongki; Lee, Soo Hyun; Jung, Byung Hwa |
2008-02-20 | Rapid determination of chlorostyrenes in fish by freezing-lipid filtration, solid-phase extraction and gas chromatography-mass spectrometry | Kim, Min-Sun; Park, Kwang-Sik; Pyo, Heesoo; Hong, Jongki |
2010-04 | Relations between toxicity and altered tissue distribution and urinary excretion of nicotine, cotinine, and hydroxycotinine after chronic oral administration of nicotine in rats | Kim, Ki Young; Lee, Young-Joo; Chung, Bong Chul; Hong, Jongki; Jung, Byung Hwa |
2021-05 | Serial Hydrolysis for the Simultaneous Analysis of Catecholamines and Steroids in the Urine of Patients with Alopecia Areata | Lee, Yu-Ra; Lew, Bark-Lynn; Sim, Woo-Young; Hong, Jongki; Chung, Bong-Chul |
2020-01-16 | Sex-related differences in urinary immune-related metabolic profiling of alopecia areata patients | Lee, Yu Ra; Kim, Haksoon; Lew, Bark Lynn; Sim, Woo Young; Lee, Jeongae; Oh, Han Bin; Hong, Jongki; Chung, Bong Chul |
2021-02 | Simultaneous Determination of Polyamines and Steroids in Human Serum from Breast Cancer Patients Using Liquid Chromatography-Tandem Mass Spectrometry | Lee, Yu Ra; Lee, Ji Won; Hong, Jongki; Chung, Bong Chul |
- | The analysis of formaldehyde in water sample of purification plant in Korea and risk assessment | CHAE HYO JIN; Kim, Jeong-Hwa; Pyo, Hee Soo; Hong, Jongki; Kim, Seungki |
2008-05 | THE RELATION BETWEEN TOXICITY AND METABOLITES AFTER ORAL ADMINISTRATION OF NICOTINE IN RATS | Jung, Byung Hwa; Kim, Ki Young; Lee, Young-Joo; Hong, Jongki; Chung, Bong Chul; Shin, Hye Seoung |
2008-02-01 | Three new flavonol glycosides from the aerial parts of Tetragonia tetragonoides | Lee, Kyu Ha; Park, Ki Myun; Kim, Kyung Ran; Hong, Jongki; Kwon, Hak Cheol; Lee, Kang Ro |