Beom Jun Ko
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Explore the profile of Beom Jun Ko including associated specialties, affiliations and a list of published articles.
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9
Citations
23
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Recent Articles
1.
Sim Y, Kim J, Ko B, Kim J, Cheong J, Pyo J
J Chromatogr B Analyt Technol Biomed Life Sci
. 2022 Dec;
1214:123568.
PMID: 36527808
In this study, an automated online micro-solid-phase extraction (μSPE)-liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the detection of metabolites of cannabidiol (CBD), Δ-tetrahydrocannabinol (Δ-THC), and Δ-tetrahydrocannabinol...
2.
Kim S, Lee M, Kim M, Ko B, Lee H, Lee S
Anal Chim Acta
. 2022 Jan;
1194:339401.
PMID: 35063156
The accurate, precise, and robust quantification of endogenous biomarkers is a challenging task because of the presence of significantly low levels of endogenous compounds in biological samples, the absence of...
3.
Lee W, Ko B, Sim Y, Suh S, Yoon D, Kim S
J Anal Toxicol
. 2018 Aug;
43(1):51-60.
PMID: 30165495
Urine was most commonly used biological sample in drug test. To create a false-negative test result, some drug abusers were reported to submit animal urine instead of their own. So,...
4.
Lee Y, Liu K, Moon J, Ko B, Choi H, Hwang K, et al.
J Agric Food Chem
. 2014 Mar;
62(14):3057-3063.
PMID: 24628475
To investigate herbicide metabolism, human liver microsomes were incubated with threo- and erythro-isomers of flucetosulfuron. Each isomer produced one metabolite; the metabolites were unambiguously identified as enzymatic hydrolysis products by...
5.
Cheong J, Suh S, Ko B, Lee J, Kim J, Suh Y, et al.
J Anal Toxicol
. 2013 Mar;
37(4):217-21.
PMID: 23467260
A hair screening method has been developed for the detection of methamphetamine using an immunoassay analyzer (AxSYM) with a fluorescence polarization immunoassay (FPIA) technique. The method consisted of washing, cutting...
6.
Ko B, Suh S, Suh Y, In M, Kim S, Kim J
Forensic Sci Int
. 2012 May;
221(1-3):92-7.
PMID: 22554873
Identification of route specific marker impurities of (S)-(+)-methamphetamine can provide us with very useful information for (S)-(+)-methamphetamine abuse criminal investigation. (1S,2S)-(+)-Chloropseudoephedrine and (1R,2S)-(-)-chloroephedrine are well known impurities of (S)-(+)-methamphetamine synthesized...
7.
Cheong J, Suh S, Ko B, Kim J, In M, Cheong W
J Sep Sci
. 2010 Jun;
33(12):1767-78.
PMID: 20512807
A simple and rapid GC-MS method has been developed for the screening and quantification of many illicit drugs and their metabolites in human urine by using automatic SPE and trimethylsilylation....
8.
Kim J, Cheong J, Ko B, Lee S, Hyun Yoo H, Jin C, et al.
Arch Pharm Res
. 2008 Dec;
31(12):1644-51.
PMID: 19099236
A liquid chromatography-electrospray ionization-tandem mass spectrometric (LC-ESI-MS/MS) method was developed and validated for the simultaneous detection and quantification of seven amphetamine derivatives (amphetamine (AP), methamphetamine (MA), 3,4-methylenedioxy-N-amphetamine (MDA), 3,4-methylenedioxy-N-methamphetamine (MDMA),...
9.
Ko B, Suh S, Suh Y, In M, Kim S
Forensic Sci Int
. 2007 Jul;
170(2-3):142-7.
PMID: 17630239
Impurity profiling and classification of seized methamphetamine may play an important role in the interpretation of analytical results, the determination of the synthetic method employed, and the criminal investigations of...