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- 저자 : 송영신 ( Yoon Chang Park (검색결과 4 건)
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박윤창,홍사욱,송영신 ( Yoon Chang Park,Sa Uk Hong,Young Shin Song ) 한국하천호수학회 1984 생태와 환경 Vol.17 No.3·4
A research for the environmental protection in the natural science campus of Sung Kyun Kwan University which is located at Chun-Chun Dong in Suweon city had been proceeded from June 1982 to September 1983. The actual conditions of the water quality of I1-wol reservoir in front of natural science campus and several places in and nearby the campus were surveyed. Judging from this survey, it was found that the water quality of I1-wol reservoir was suitable for agricultural use without any trouble. However, seasonal fluctuation in the concentration of anions and cations in water was found. Even though the concentration of some cations such as chloride and sulfate did not reach the level of WHO for water or allowable limit of our national water works it shows much higher value than that in all of natural rivers and clean lakes in our country. On the other hand, the number of E. coli in the water of I1-wol reservoir was seasonally fluctuated, that is, a large number was counted in summer and a small number in winter. The average number of E. coli in this water was less than 3,000 per ml all the year round. Therefore, it is regarded as a suitable water for irrigation. The waste water was treated with FeSO₄ or Fe₂(SO₄)₃ㆍ xH₂O in order to eliminate heavy metals such as Hg and Cd dissolved in it. After the ratio of Fe^++ to OH^- in the water was adjusted to 1 : 1.5 by NaOH and then aeration was followed most Cd and Hg ions were eliminated by precipitation. 14 organic substances were detected from the water in the waste water reservoir tank and some of them were easily removed by aeration.
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Cu(3-amino-1-propanol)X_2 (X=C1, Br)의 분광학 및 자기적 성질
송영신,박윤창 성균관대학교 기초과학연구소 1988 論文集 Vol.39 No.1
The Spectral and magnetic properties of [Cu(3-amino-1-propanol)X]_2 where X=Cl and Br have been studied and are compared with those of dimeric copper (Ⅱ) acetate monohydrate. The exchange interaction parameter J of [Cu(3-amino-1-propanol)Cl]_2 is estimated to be 391cm^-1, the zero field splitting parameters are D=0.438cm^-1 and E=0cm^-1. On the other hand the magnetic parameters of [Cu(3-amino-1-propanol)Br]_2 can not be obtained because its EPR spectrum shows only one absorption line that is broad and superimposed with the line due to monomer. The calculated Cu-Cu distance is 2.81Å. The super exchange interaction through alkoxo bridge is considered to be dominant rather than the direct exchange interaction through copper-copper. The visible, infrared and far-infrared spectra of these compounds are also discussed.
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박윤창,송영신 成均館大學校 1983 論文集 Vol.33 No.-
The dimeric copper(Ⅱ) complexes with schiff base lignds(acetylacetone-mono-(o-hydroxyanil) and benzoylacetone-mono-(o-hydroxyanil) were prepared and electronic absorption spectra and ESR spectra of their powdered samples were studied. ΔM_s=±2 forbidden transitions are observed for these particular dimeric Cu(Ⅱ) complexes and the experimental |D_(diple-diple)|value, 0.117 ㎝^(-1), of acetylacetonemono-(o-hydroxyanil) Cu(Ⅱ) complex is consistent with the calulated value exactly. The calculated |D_dd|value from the experimental D value yields an intermetallic distance of 2.32 A˚ for benzoylacetone-mono-(o-hydroxyanil) Cu(Ⅱ)complex. Acetylacetone-mono-(o-hydroxyanil) Cu(Ⅱ) complex shows the ligand field band at a shorter wavelength than benzoylacetone-mono-(o-hydroxyanil) Cu(Ⅱ) complex indication the greater conjunction in the acetylacetone-mono-(o-hydroxy-anil)ligand.
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김건신,송영신,朴允昌 성균관대학교 기초과학연구소 1985 論文集 Vol.36 No.2
Trace levels of inorganic and organic mercury ions in aqueous solution were concentrated on several ion exchange resins and their distribution coefficients were found by Cold Vapor Atomic Absorption (CVAA) technique. Of ion exchange resins used for experiments, moderately basic anion exchange resin (Cl^--from, Dowex-2 2×8-100) showed the best distribution coefficient, resulting in the effective concentration of mercury ions. Also, better distribution coefficients were obtained for highly crosslinked in exchange resins. As the temperature of mercury solution increased the amount of the mercury ions absorbed on the resins increased. Inorganic and organic mercury ions were selectively reduced by SnCl_2, NH_2OH·HCl and NaBH_4, respectively, and SnCl_2, NH_2OH·HCl showed a better results for inorganic mercury and NaBH_4 for organic mercury. Although the addition of NaBH_4 to solutions containing mercury ions as a reducing agent showed high absorbances, it did not obey Beer's law satisfactorily when the concentration became high. With the aid of HNO_3 and NH_4Cl sobution, sobutions containing both types of mercury could be preserved for more than a week. In solutions with inorganic and organic mercury ions, inorganic mercury ions were selectively determined by SnCl_2, NH_2OH·HCl. The organic mercury content of the solution could be determined after total mercury and inorganic mercury were analyzed separately.
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