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한영희,조용희 한국분석과학회 2007 분석과학 Vol.20 No.4
.The analytical method of HPLC with the radial-flow electrochemical cell (RFEC) has been developedto determine doxorubicin, epirubicin, nogalamycin, daunorubicin and idarubicin simultaneously by employingreference electrode, a potential of diffusion curent plateau in the mobile phase. At a Vf of 1.0 mL/mindoxorubicin, epirubicin, daunorubicin and idarubicin appeared at a retention time (tr) of 6.4 min, 7.4 min, 12.7min and 18.4 min, respectively, while at a Vf of 0.6 mL/min, doxorubicin, epirubicin, nogalamycin, daunorubicinand idarubicin appeared at a tr of 9.9 min, 11.5 min, 13.5 min, 19.6 min and 28.7 min, respectively. The linearity. Corresponding authorPhone : +82-(0)2-2287-5144 Fax : +82-(0)2-2287-0070E-mail: yhahn@smu.ac.krAnalyses of anthracyclines by HPLC/RFEC 309Vol. 20, No. 4, 2007between each anthracycline injected (2.40×107 M~1.42×105 M) and peak area (charge) was excellent with thesquare of the correlation coefficient (R2) higher than 0.999. The detection limits were 1.0× 108 M~1.5× 107 Mfor the five anthracyclines. Within-day precision for the five anthracyclines were in reasonable relative standarddeviations less than 3 % (1.0
한영희 남서울대학교 경영연구센타 2003 경영연구 Vol.5 No.-
I studied on ERP system for the korean small & medium sized industries. Summarizing the results of analysis as following; First hypothesis, the degree of CEO support, is that the classified by industry differs on p<.01 significant level. Second hypothesis, the usefulness of accounting information system, is that the classified by industry differs on p<.01 significant level. In addition, the additional analysis of hypotheses was analyzed using Duncan's Multiple Range Tests statistical analysis technique. First hypothesis, the degree of CEO support, is that tile classified by industry differs on p<.05 significant level, Second hypothesis, the usefulness of accounting information system, is that the classified by industry differs on p<.05 significant level