Won Jo Cheong | Inha University (original) (raw)
I am interested in development of advanced chromatographic stationary phases and columns. In our laboratory, we have achieved excellent separation efficiency for HPLC and CEC columns. The number of theoretical plates of 1.7 million has been achieved with a 1.2 m open tubular capillary column in the CEC mode. When the same column was operated in the LC mode, the separation efficiency was over 200,000 plates. In addition, the columns packed with modified silica monolith particles have shown the column separation efficiency as high as 50,000 plates per column.
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Papers by Won Jo Cheong
Bulletin of the Korean Chemical Society, 1997
Journal of the Korean Chemical Society
We have prepared microcolumns made of stainless steel tubing, glass-lined stainless steel tubing,... more We have prepared microcolumns made of stainless steel tubing, glass-lined stainless steel tubing, and silica-lined stainless steel tubing and examined their performances comparatively. The length of columns was fixed as 30 cm, and the I.D.'s, either 1 mm or 0.5 mm. Octadecyl bonded silica paticles were used as the stationary phases. p-Nitroaniline, N,N-dimethyl-o-nitro-p-toluidine,and ethylbenzene were used as the test solutes. The glass-lined or silica-lined stainless steel columns showed better performances than the plain stainless steel column did. The number of theoretical plates over 10,000 were obtained even for the 0.5 mm I.D. (30 cm long) column as long as the glass-lined stainless steel tubing was used.1(토) - 사전등록 : 2004.1.24(토) - 행사장소 : 전주대학교 - 행사주최 : 한국디자인학회 - 행사주관 : 한국디자인학회, 전주대학교 - 행사후원 : 한국디자인법인단체총연합회, 한국디자인진흥원, 디자인네트, 월간디자인, 광주문화재단 - 참가자 : 한국디자인학회 회원 및 비회원 - 참가비 : 회원 (사전등록자 및 예약자 8만원) 학생회원 (사전등록자 및 예약자 5만원) 회원 ( 현장등록자 10만원) 비회원 20만원 ( 사전등록 18만원) - 제공내역 : 숙박, 3식(석식...
Bulletin of the Korean Chemical Society, 1997
Journal of the Korean Chemical Society
We have prepared microcolumns made of stainless steel tubing, glass-lined stainless steel tubing,... more We have prepared microcolumns made of stainless steel tubing, glass-lined stainless steel tubing, and silica-lined stainless steel tubing and examined their performances comparatively. The length of columns was fixed as 30 cm, and the I.D.'s, either 1 mm or 0.5 mm. Octadecyl bonded silica paticles were used as the stationary phases. p-Nitroaniline, N,N-dimethyl-o-nitro-p-toluidine,and ethylbenzene were used as the test solutes. The glass-lined or silica-lined stainless steel columns showed better performances than the plain stainless steel column did. The number of theoretical plates over 10,000 were obtained even for the 0.5 mm I.D. (30 cm long) column as long as the glass-lined stainless steel tubing was used.1(토) - 사전등록 : 2004.1.24(토) - 행사장소 : 전주대학교 - 행사주최 : 한국디자인학회 - 행사주관 : 한국디자인학회, 전주대학교 - 행사후원 : 한국디자인법인단체총연합회, 한국디자인진흥원, 디자인네트, 월간디자인, 광주문화재단 - 참가자 : 한국디자인학회 회원 및 비회원 - 참가비 : 회원 (사전등록자 및 예약자 8만원) 학생회원 (사전등록자 및 예약자 5만원) 회원 ( 현장등록자 10만원) 비회원 20만원 ( 사전등록 18만원) - 제공내역 : 숙박, 3식(석식...