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Acetylacetone-Methyl Isobutyl Ketone을 金屬溶解性 試樂으로 使用하는 鐵의 물아닌 溶媒 Polarography
黃在順 全北大學校 文理科大學 1976 論文集 Vol.4 No.-
A method for the direct current polarography of metallic iron dissolved dirrectly in AcAc (Acetylacetone) MIBK (Methyl lsobutyl ketone) was established. Aliquots of 100mg sample dissolved in AcAc-MIBK to the totoal volume were used to determined the amount of iron by dirrect current polarography in the region of applied potential from 0.0 to - 1 volt vs. SCE after bubbling for 20 min with nitrogen was recorded. A reversible polarographic reduction wave was obtained and the reduction half wave potential was -0.42 volt vs. SCE. lron was determined by refering to the calibration curve. The new method developed in this study is useful to the rapid anlaysis of iron-content without the complicated courses needed prior to determination, and has accuracies nearly comparable to those attained the conventional method by ashing evaporating and drying of sample.
Acetylacetone-N, N-Dimethylformamide를 金屬溶解性 試藥으로 使用하는 Cadmium의 물아닌 溶媒 A.C. Polarography
黃在順 全北大學校 1982 論文集 Vol.24 No.-
A method for the A.C. Polarography of metallic cadmium dissolved directly in organic solvent, Acelylacetone, as metal-solubility in Acetylacetone-N, N-Dimethylformamide and 0.2M NaClO_4 supporting electrolyte, was studied. A sample of 0.3M Cd was taken into a cell. After dried nitrogen gas was passed through it for 20min, the A.C. Polarogram in the region of applied potential from 0.0~1.0 volt vs. SCE was recorded and all experiments were carried out at 25.0±0.5℃ A reversible polarographic reduction wave was obtained and the reduction half wave potential was -0.46 volt vs. SCE. Cadmium was determined by refering to the calibration curve.
Salicylaldehyde-Acetonitrile 非水溶媒中에서 亞鉛의 直流 Polarograph定量法
黃在順,黃三榮 全北大學校 基礎科學硏究所 1985 基礎科學 Vol.8 No.1
A method for the direct current polarographic determination of metallic zinc dissolved directly in organic solvent, salicylaldehyde, as metal-solubility in salicylaldehyde acetonitrile and 0.2M LiClO_4 supporting electrolyte, was studied. The solution of zinc was taken into a cell. After dried nitrogen gas was passed through it for 20 min. the direct current polarogram in the region of applied potential from 0.0-1.0V(vs. SCE) was recorded and all experiments was carried out at 25.0 ± 0.5℃. A reversible polarographic reduction wave was obtained and the reduction half wave potential was-0.56V(vs, SCE). Zinc was determined by refering to the calibraton curve.
全州工業團地 廢水汚染이 裡里, 益山地方의 用水質에 미치는 영향과 그 對策에 關한 硏究
黃在順 全北大學校 1979 論文集 Vol.21 No.-
Mangyung river is being contaminated by Jeon Ju stream, one of the major upstream of Mangyung river, which is being polluted by the sewerage of Jeon Ju city and the waste water from the plants located at Jeon Ju Industrial Area. In order to find out whether the water originated from MG river is harm, or not purpose of irrigation and home use, some indices such as PH, COD, BOD, SS, and DO were investigated at four adjacent regions of MG river. The results obtained in thisstudy are as follows ; 1. It is known that PH, COD, SS, and DO values of water of the upstream of MG river are 6.9ppm, 30.0ppm, 21.5ppm, and 9.5ppm, respectively. 2. The water originated from MG River was considered to be not harm for irrigation water, but harm for home use on the basis of indices regulated. 3. It is seemed to be desirable for the following countermeasures to be established to prevent water contaminations in these area. Firstly, it is desirable to construct sewers to seperate natural stream water from sewerage and waste water in these area. Secondly, it is desirable to construct more sewerage disposal plants and to expand the disposal facilities in these area. Thirdly, it is desirable to construct levees for Jeon Ju stream and Gosan stream to be separated.
Acetylacetone-N,N-Dimethylformamide 混合溶媒中에서 鐵의 Polarograph的 擧動
黃在順 全北大學校 文理科大學 1977 論文集 Vol.5 No.-
D.C.polarographic behavior of the metallic iron dissolved directly in organic solvent, acetylacetone, as metal-solubility in the acetylacetone-N,N-demethylformamide and 0.2M NaClO_4 supporting electrolyte, was studied. A sample of 0.3M Fe was taken into a cell. After dried nitrogen gas was passed through it for 20min, the D.C. current polarogram in the region of applied potential from 0.0~1.0 volt vs. SCE was recorded and all experiments were carried out at 25.0±0.5℃. In this case the reduction half wave potential was -0.46 volt vs. SCE and the electrode reaction was found to be a reversible (resipiprocal slope : 59mV) one-electron reduction and diffusion-controlled. In this case, assuming that metal complex Fe(acac)_3 is reduced reversibly with one-electron transfer, the electrode reaction is given as follows. Fe(acac)_3+e??Fe(acac)_2-
黃在淳 한국고전문학교육학회 2005 고전문학과 교육 Vol.9 No.-
The Korean Classics education at the high school is directly related to the College Entrance Exams. On the Korean Language & Literture Section of the annual College Scholastic Ability Test, the number of the questions and passages about Korean Classics were low and large parts of those were beyond the high school's range and level. Besides, regardless of the course of Humanity-social or Science-technical, Students have the same questions. Many high school students think that to study the Korean Classics at school is unnecessary for College Entrance Exam. So, the future of Korean Classics Education on the Elective Course of High School Curriculum is not bright. We need to make some efforts for Korean Classics education in high school. The solution of these problems is like below: 1) We must divide the College Scholastic Test's Korean Language-Literature Section into 'A' type and 'B' type like Math Section 2) We must make the questions in the range of the regular textbooks.