이온교환수지에 의한 철의 선택적 분리 및 정량

정용순,김동원,김성호,이대운,Yong Soon Chung,Dong Won Kim,Seung Ho Kim,Dai Woon Lee 대한화학회 1987 대한화학회지 Vol.31 No.1

Calcon carboxylic acid[2-hydroxy-1-(2-hydroxy-4-sulfo-1-naphthylazo)-3-naphthoic acid;CCA)]를 이온교환시킨 Dowex 1-X8수지(CCA-Dowex 1-X8)와 2-methyl-8-hydroxyquinoline(MHQ)을 침윤시킨 Amberlite XAD-4 수지(MHQ-XAD-4)를 여러가지 매질중에 있는 철(Ⅲ)이온의 분리-농축에 사용하였다. 이들 수지의 안정성을 검토하고 철(Ⅲ)이온에 대한 흡착능을 측정하였다. 매트릭수의 주성분인 Al(Ⅲ), Ca(Ⅱ), 및 Fe(Ⅲ)들의 수지에 대한 흡착성을 pH를 변화시키며 조사하여 최적 pH범위를 결정하였다. 용리법으로 알루미늄호일과 초정약수중 미량의 철분을 매트릭스 이온으로부터 분리-농축하였다. 농축된 Fe(Ⅲ)는 소량의 강산으로 용리시켜 불꽃 원자흡광광도법으로 정량하였다. 초정약수중의 Fe(Ⅱ)와 Fe(Ⅲ) 이온들은 SP-Sephadex C-25컬럼으로 농축하고, ferrozine용액과 1% ascorbic acid-ferrozine용액으로 단계적 용리법에 의해 용리시킴으로써 각각을 분리할 수 있었다. 분리된 각 이온들은 Fe(Ⅲ)-ferrozine착물의 분석 파장인 562nm에서 분광 광도법으로 정량하였다. Dowex 1-X8 resin ion exchanged with calcon carboxylic acid (CCA-Dowex 1-X8) and 2-methyl-8-hydroxyquinoline(MHQ) impregnated-Amberlite XAD-4 resin (MHQ-XAD-4) were examined for the separation and preconcentration of ferric ion from the various matrices. The stabilities of these resins were investigated, and their capacities on ferric ion were also measured. The effect of pH on the adsorption of ferric ion and matrix ions, such as Al(Ⅲ) and Ca(Ⅱ), was investigated to determine the optimun pH ranges. Separation and preconcentration of iron in aluminium foil and mineral water samples were studied by elution method with these resin columns. The recovered ions by 10ml of 2F nitric acid was determined by flame atomic spectrophotometry. SP-Sephadex C-25 column was used to separate ferrous and ferric ion in mineral water by stepwise elution with ferrozine and 1 % ascorbic acid-ferrozine solution. The concentrated and separated each ion could be determined spectrophotometrically at the analytical wavelenth of Fe(Ⅱ)-ferrozine complex (562nm).

고성능 액체 크로마토그래피의 간접 분광광도법에 의한 THM과 PCB의 분석

정용순,이강우,Chung, Yongsoon,Lee, Kangwoo 대한화학회 1995 대한화학회지 Vol.39 No.12

THMs and PCBs were separated and analysed with elution on Novapak ODS or $\mu-Bondapak$ phenyl column by an eluent containing p-nitrophenol (p-NP). THMs studied were CHCl3, CHBrCl2, CHBr2Cl, and CHBr3, and PCBs used were Aroclor 1221, 1242, 1248, $\alpha-$ and $\beta-BHC.$ It was thought that the retention on the stationary phase and sensitivities of the samples are related to the interaction between the sample and stationary phase or p-NP. THMs were separated completely on the ODS column by elution with MeOH-water (30 : 70) containing $1.0{\times}10^{-4}$ M p-NP and some of PCBs were separated on the phenyl column by elution with $CH_3CN$-water(50 : 50) containing $1.0{\times}10^{-4}$ M p-NP. Detection limits of THMs were from $1.0{\times}10^{-4}$ g to $1.0{\times}10^{-6}$ g. Aroclors were $2{\times}10^{-6}$ g, and $\alpha-$ and $\beta-BHC$ were $2{\times}10^{-4}$ g and $1.0{\times}10^{-4}$ g respectively.

Amberlite XAD-공중합체를 이용한 살리실산 및 크로마토그래피적 분리 그 유도체들의 액체

정용순,이택혁,문영자,이대운,Yong Soon Chung,Taik Hyuk Lee,Young Ja Moon,Dai Woon Lee 대한화학회 1989 대한화학회지 Vol.33 No.1

살리실산 및 그 유도체들의 Amberlite XAD-4와 XAD-7 수지 분리관에서의 역상 액체크로마토그래피적 용리거동이 고전적 방법과 현대적 고성능 액체크로마토그래피(HPLC)에 의하여 연구되었다. 고전적 크로마토그래피에서는 질산제 2철 용액의 농도를 0.010F 농도로부터 0.150F 농도까지 변화시키면서 50% 메탄올 수용액에서 머무름크기인자(k')를 측정함으로써 용리거동을 설명하였다. 한편, 고성능액체크로마토그래피에서는 pH 2.25와 293K에서 여러가지 비교적 저 농도의 질산제 2철 용액($2.5{\times}10^{-4}F$에서 $1.0{\times}10^{-3}F$까지)과 여러 농도의 메탄올 수용액을 용리액으로 k값들을 측정함으로써 살리실산 및 그 유도체들의 용리메카니즘을 설명하고, 이들의 분리에 대한 최적 조건을 발견하였다. 결과적으로, 철(III)이온 농도가 증가하면 log k'가 비례하여 감소하는 현상을 발견하였는데, 그 감소하는 기울기가 문헌에 보고된 철(III)-살리실산 및 그 유도체착물들의 안정도 상수값들과 관계 있음을 발견하였다. 살리실산유도체들의 몇가지 이성체들을 최적 조건에서 분리하였다. Reverse phase liquid chromatographic elution behaviors of salicylic acid and its derivatives were studied with classical and modern high-performance liquid chromatography(HPLC) using Amberlite XAD-4 and XAD-7 resin packed columns. Capacity factors(k') were determined in the comparatively high concentration(from 0. 010F to 0. 150F) of ferric nitrate-50% methanol solution to elucidate the elution behaviors with classical method. On the other hand, k's were measured in the various concentrations of methanol and ferric nitrate(from $2.5{\times}10^{-4}F\;to\;1.0{\times}10^{-3}F$) solution of pH 2. 25 and 293K with HPLC to explain the elution mechanism of them, and to find their optimum separation condition. As a result, it was found that log k's of salicylic acid and its derivatives were decreased with increasing the concentration of ferric ion, and the decreasing slopes of the compounds on the increasing ferric ion concentrations were related with each stability constant of ferric salicylates. Some isomers of derivatives of salicylic acid could be separated in the optimum condition.

역상 모세관-고성능 액체 크로마토그래피에 의한 코발트와 니켈 이온의 4-(2-피리딜아조)레조루신올 킬레이트로서의 분리 및 정량

정용순,정원석,Chung, Yong-Soon,Chung, Won-Seog 대한화학회 2003 대한화학회지 Vol.47 No.6

Separation and determinations of Co(II) and Ni(II) ions as their 4-(2-pyridylazo)resorcinol(PAR) chelates by reversed-phase capillary high-performance liquid chromatography(RP-CpHPLC) were performed. Among many capillary columns, Vydac C4 column was selected and acetonitrile solution was used as mobile phase. The effect of pH and MeCN concentration(%) on the retention factor, k and peak intensity was examined and discussed. As a results, it was found that 22.5% MeCN and pH 5.60 was adequate as mobile phase for the separation of the two metal ions and determination of Co(II) ion, but the mobile phase condition for Ni(II) ion determination was 22.5% MeCN of pH 7.20. Detection limit(D.L., S/N=3) of Co(II) and Ni(II) ions were $2.0{\times}10{-7}$ M(14.9 ppb) and $1.0{\times}10{-6}$ M(59.2 ppb), respectively.

귀금속-티아크라운에테르 착물들의 역상 이온쌍 고성능 액체크로마토그래피 용리거동

정용순,김동원,이강우,김창석,Chung, Yong Soon,Kim, Dong Won,Lee, Kang Woo,Kim, Chang Seok 대한화학회 1998 대한화학회지 Vol.42 No.4

In the reversed-phase ion-pair high performance liquid chromatographic (RPIP-HPLC) elution behavior of noble metal-thiacrown ether complexes, the effects of the concentration of ion-pairing reagent and kind of ligands were studied. It was found that the less the number of atoms in the ring of the thiacrown ether molecule was, the larger the selectivity was, and the elution mechanism of the complexes was explained due to the formation of ion-pair when the concentration of sodium dodecyl sulfate (SDS) in mobile phase was lower than 10 mM and due to the formation of micelle when the SDS concentration was higher than 10 mM. As a conclusion, separations of the noble metal-thiacrown ether complexes in an optimum separation condition were accomplished successfully and the method was proved to be an useful one for the separation and determination of Ag (Ⅰ) ion in a black-white photographic fixing solution.

미량 중금속의 농축 및 정량을 위한 폴리에틸렌이민-폴리메틸렌폴리페닐렌 이소시안에이트에 토대한 킬레이트 수지의 합성에 관한 연구(II) : 루빈산이 결합된 카르복시메틸화된 폴리아민-폴리우레아 수지

정용순,이강우,황종연,임광수,Chung, Yong Soon,Lee, Kang Woo,Hwang, Jongyoun,Lim, Kwang Soo 한국분석과학회 1993 분석과학 Vol.6 No.5

Carboxymethylated polyamine-polyurea resin loaded with rubeanic acid (RCCPPI resin) was obtained by 1 step chemical reaction between chlorocarboxymethylated polyamine-polyurea(CCPPI) resin as matrix polymer and rebeanic acid. This resin was confirmed with infrared spectrometry, elemental analysis, and thermal analysis(DSC). The adsorption characteristics of the heavy metal's on the resin were studied by measuring distribution coefficient($K_d$) with changing pH of the solutions and frontal chromatography. The enrichment, recovery, and analysis of trace heavy metals, such as cadmium, cerium, copper, nikel, lead, and zinc, in the presence of high concentrations of sodium, calcium, and acetate salts was possible quantitatively by a column packed with the resin at each optimum pH. Preconcentration factors were more than 25. To elute the adsorbed heavy metals on the resin, 0.025M EDTA solution(pH 9.0) was used.

‘로하스’ 트렌드에 의한 벽지의 소재와 기능에 관한 연구

정용순(Chung, Yongsoon) 한국조형디자인학회 2005 조형디자인연구 Vol.8 No.2

‘웰빙’(Well-being)과 미래의 환경까지 걱정하는 라이프 스타일 ‘로하스’ (LOHAS)가 21 세기의 주거 트렌드로 부각되면서 삶의 질을 높이기 위한 소비자의 인식과 요구는 벽지업계를 변화시키고있다. 과거의 벽지의 개념은 건축 마감재로써 지저분한 벽을 가리고 넓게 보이기 위해 밝은 단색을주로 선택하며 약간의 직물문양이나 기하학적인 패턴이 선호되었다 즉 인테리어 업자가 추천하거나 제시하는 샘플 중에서 밝은 색을 선택하는 정도였다. 그러나 이제는 소비자들의 인식이나 경제적인 수준도 높아져 소비자들은 각종 건강 기능을 포함한 화려하고 개성있는 장식재로서의 벽지를요구하고 있다.과거의 벽지 구매요인이 디자인과 가격이었다면 웰빙문화에 의한 현대 소비자들의 관심은 유해물질을 배출하지 않을 뿐 아니라 기능성이 포함된 친환경 벽지에 대한 관심이 높아지고 있다.따라서 높은 생산원가에도 불구하고 유성잉크대신 수성잉크를 사용하기 시작하고, 지사벽지나 천연직물벽지의 사용이 증가하고 있으며 각종 특수한 건강기능이 첨가된 벽지의 개발이 이루어지고있다. 미래의 환경을 위해서 친환경 소재를 사용하는 데는 소비자의 인식도 중요하고 업계에서는초기 생산 비용이 많이 들더라도 신기술 신소재를 꾸준히 개발함으로써 고부가가치 제품으로 더욱소비자의 요구에 부응할 수 있게 될 것이다. LOHAS(Lifestyle of Health and Sustainability) which focuses on well- being and concerns about the environment of the future becomes a trend for residence in the 21st century and consumers' recognition and needs for better quality of life changes the wallpaper industry. In the past, the wallpaper was considered as a finishing of a building covering the messy wall and bright single color and small geometric patterns were preferred to make the room larger. Consumers chose only the color among the samples presented by the interior designer. But, nowadays with upgraded perception and economic level, they want splendid and personal wallpaper with various health- related functions. In the past, the major selling point for wallpapers were design and pnce, but nowadays consumers with well- being orientation concern about discharge of toxic substances and have more interest on functionality and environment-friendliness. The wallpaper company is developing new wallpapers with vanous health- related functions using paper twine, natural fabrics and water- based ink over oil-based one in spite of high production costs. Use of natural materials with environment-friendliness is a vision for our effort for our children to live in the future. Even though the initial cost of production is high for new technology and materials, it will be reduced for mass production. Development of new technology for health and environment will produce goods of high value added in difficult economic situation and meet consumers' needs.

문화상품 개발을 위한 발전방안 연구

정용순(Chung Yongsoon) 한국디자인학회 2001 디자인학연구 Vol.- No.42

Facing the 21th century, the cultural era, a lot of people show much more concern on cultural products than before. These cultural products can be regarded as our national countenance because they might contain the national tradition and spirit. So, it is quite obvious that the image of a product will be directly related to the national image. The current problems of developing cultural products in Korea are underdeveloped product design and technique, and widespread of poor quality products. Fist of all, it needs to develop competitive designs by reflecting cultural aspects in each product, based on the specialized research and information on our culture. And it is important to invest in developing materials and skills for mass production and the improvement that can excel the past. Also, there are needs to reform the sales structure to connect producers and consumers directly, not through the wholesalers who cause the price rising. Finally, museums as well as government should cope with this cultural competitive era actively by giving the continuous cultural education and inducing the participation from citizens.

[화학] 전해커패시터 전해액 중 3차 아민과 4차 암모늄염의 이온쌍 액체크로마토그래피에 의한 분석

정용순(Yongsoon Chung),장철규(Cheolkyu Chang),이정미(Jeongmi Lee),이영훈(Younghoon Lee),김성호(Seong Ho Kim) 한국분석과학회 1997 분석과학 Vol.10 No.4

디지털 텍스타일 프린팅과 재래식 스크린 날염의 비교연구

정용순(Chung Yongsoon) 한국디자인학회 2004 디자인학연구 Vol.17 No.2