Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Young Han Jeong"'
Publikováno v:
Ultrasonics Sonochemistry, Vol 90, Iss , Pp 106125- (2022)
The ultrasound-assisted extraction (UAE) was conducted using the stainless steel (SS) and polyether ether ketone (PEEK) columns and analyzed with high-performance liquid chromatography (HPLC) to understand the mechanism of ultrasound-assisted chromat
Externí odkaz:
https://doaj.org/article/4a79a971a02f4ab0a2e64192d10fb4b2
Publikováno v:
Bulletin of the Korean Chemical Society.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e8ac7f24a4dc52271ff1c5bc383c1dc
https://doi.org/10.1002/bkcs.12700
https://doi.org/10.1002/bkcs.12700
Autor:
Jae Jeong Ryoo, Young-Han Jeong
Publikováno v:
Analytical Science and Technology. 23:97-101
(R)-N-3,5-dinitrobenzoyl (DNB) phenylglycinol derived chiral selector was used as a HPLC chiral stationary phase (CSP) for the resolution of racemic N-acylnaphthylalkylamines. In this study, determination of optical purity was performed by both chira
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23437d1f5eeb78e708ca0fb20d2d680a
https://doi.org/10.5806/ast.2010.23.1.097
https://doi.org/10.5806/ast.2010.23.1.097
Autor:
Young-Hee Choi, Song-I Son, Kyung-Jin Jang, Young-Han Jeong, Jong-Suc Jung, Taekyeong Kim, Oh-Kyung Kwon
Publikováno v:
Textile Coloration and Finishing. 20:75-82
The optimum extraction conditions of green tea used for a bath were investigated for application to textiles. The stability of the extracts and content of active ingredients were analyzed as well. The extraction was more effective in water and methan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40bfb76874e2c8bc318a5dd5a4f3ad33
https://doi.org/10.5764/tcf.2008.20.2.075
https://doi.org/10.5764/tcf.2008.20.2.075
Publikováno v:
Bulletin of the Korean Chemical Society. 27:637-641
Although chiral separation has been one of the main topics of chromatographic practice for over twenty-five years, it still presents many difficulties. In this work, the ultrasonic dependence of chiral resolution was investigated at various temperatu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0dd2835ea340285a4ebd9f211c4d438
https://doi.org/10.5012/bkcs.2006.27.5.637
https://doi.org/10.5012/bkcs.2006.27.5.637
Autor:
Seong-Ho Choi, Kwang-Pill Lee, Young Sik Jung, Myung Ho Hyun, Sung Hyun Im, Jae Jeong Ryoo, Young Han Jeong
Publikováno v:
Chirality. 14:329-333
Recently, it was reported that the chiral recognition ability of (R)-N-3,5-dinitrobenzoyl phenylglycinol derivative was examined as a new HPLC chiral stationary phase (CSP 1) for the resolution of racemic N-acylnaphthylalkylamines. However, the mecha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1c60c14969276b92ca935d3f7d27bf3
https://doi.org/10.1002/chir.10071
https://doi.org/10.1002/chir.10071
Autor:
Jae Jeong Ryoo, Jin Ki Kuen, Myung Ho Hyun, Young Han Jeong, Sung Ok Han, Jae Hak Lee, Kwang-Pill Lee, Sang Cheol Han
Publikováno v:
Microchemical Journal. 68:127-133
A bonded silica stationary phase (SP 1 ) was prepared by connecting N -(3,5-dinitrobenzoyl) aminoundecylsilane to silica gel. The stationary phase was applied in resolving a liquid crystal mixture with a reversed phase high performance liquid chromat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7d6a835b1097dca4821daa5e49081fc
https://doi.org/10.1016/s0026-265x(00)00139-9
https://doi.org/10.1016/s0026-265x(00)00139-9
Publikováno v:
Radiation Physics and Chemistry. 60:503-511
Ion-exchange membranes modified with the triethylamine [–N(CH 2 CH 3 ) 3 ] and phosphoric acid (–PO 3 H) groups were prepared by radiation-induced grafting of glycidyl methacrylate (GMA) onto the polyolefin nonwavon fabric (PNF) and subsequent ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0c0416268a60e398a44fee772db6572
https://doi.org/10.1016/s0969-806x(00)00397-2
https://doi.org/10.1016/s0969-806x(00)00397-2
Publikováno v:
Analytica chimica acta. 619(1)
A simple and simultaneous analysis method for four (anionic, amphoteric, nonionic, and cationic) classes of surfactants in shampoo and hair conditioner was newly developed. Analysis of the surfactants was performed using a reversed-phase HPLC (RPLC)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3ccc6594c447dcdefa14d47ad99e686c
https://pubmed.ncbi.nlm.nih.gov/18539185
https://pubmed.ncbi.nlm.nih.gov/18539185
Autor:
Sung Hyun Im, Ji Yeon Park, Seong-Ho Choi, Tae Hyuk Kim, Kwang-Pill Lee, Jae Jeong Ryoo, Jung Hag Park, Young Han Jeong
Publikováno v:
Journal of chromatography. A. 987(1-2)
Five π-acidic chiral stationary phases (CSPs), CSP 4, CSP 5, CSP 6, CSP 7 and CSP 8, were prepared by connecting the N-(3,5-dimethylbenzoyl) derivative of (R)-alaninol, (S)-leucinol, (1S,2R)-ephedrine and (S)-tert-leucinol and the O-(3,5-dinitrobenz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f755588dba08b7e2aed7cee38d473663
https://pubmed.ncbi.nlm.nih.gov/12613838
https://pubmed.ncbi.nlm.nih.gov/12613838