Go to the main menu
Skip to content
Go to bottom
REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Analytical Science and Technology
Journal Basic Information
Journal DOI :
The Korean Society of Analytical Science
Editor in Chief :
Volume & Issues
Volume 17, Issue 6 - 00 2004
Volume 17, Issue 5 - 00 2004
Volume 17, Issue 4 - 00 2004
Volume 17, Issue 3 - 00 2004
Volume 17, Issue 2 - 00 2004
Volume 17, Issue 1 - 00 2004
Selecting the target year
REVIEW : ANALYTICAL METHODS OF THE POLYCHLORINATED BIPHENYLS IN WASTE TRANSFORMER OILS
Shin,Sun-Kyoung ; Kim,Tas-Seung ; Kim,Kyoung-Sim ; Park,Jin-Su ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 29~29
Determination of lead content in the plastic by ICP and AAS using HI reduction - PbSO
Lee, Hyun-Ja ; Kim, Sang-Kyung ; Lee, Se-Jin ; Lee, Hyun-A ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 369~374
Plastic was decomposed with nitric acid after being carbonized by sulfuric acid. Then excess sulfuric acid and nitric acid was removed by evaporating and drying. Precipitated
was resolved itself into
by HI in hydrochloric acid and was volatilized. Then
was dissolved and was measured by AAS and ICP. The test for reproducibility using PVC-Pb standard material (690-34610mg/kg) was conducted and the accuracy was more than 99.9% compared with the estimated concentration. The precision by AAS was 99.8% and that of ICP was 99.9%.
Kinetic Analysis by High Pressure and High Vacuum Apparatus for the Nucleophilic Substitution Reaction
Kim, Se-Kyong ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 375~380
Kinetics have been studied by high vacuum and high pressure apparatus under various temperatures and pressures for the nucleophilic substitution reaction. Rate constants, activated parameters and Hammett
-values are determined. The values of
are all negative. The Hammett
-values are negative for the nucleophile (
) over the pressure range studied. Consequently the rate constant increases as the pressure increases, and some decrease in vacuum. So these reactions proceed in typical
Determination of Tritium in Spent Pressurized Water Reactor (PWR) Fuels
Lee, Chang Heon ; Suh, Moo Yul ; Choi, Kwang Soon ; Jee, Kwang Yong ; Kim, Won Ho ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 381~387
To characterize chemically a spent pressurized water reactor (PWR) fuel, an analytical method for trace amounts of tritium (
) in it has been established. Considering the effective management of radioactive wastes generated through the whole experimental process and the radiological safety for analysts, a separation condition under which
can be sequentially recovered from a single fuel sample was optimized using simulated spent PWR fuel dissolved solutions.
evolved during dissolution of the spent PWR fuels with nitric acid was trapped in an aliquot of 1.5 M NaOH.
which was volatilized along with
was removed using a silver nitrate-impregnated silica gel absorbent.
remaining in the fuel dissolved solution as
was selectively recovered by distillation. Its recovery yield was 97.9% with a relative standard deviation of 0.9% (n=3).
in a spent PWR fuel with burnup value of 37,000 MWd/MtU was analyzed, reliability of this analytical method being evaluated by standard addition method.
Structural Studies of Membrane Protein by Solid-state NMR Spectroscopy
Kim, Yongae ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 388~392
Structural studies of membrane proteins, importantly involving interpretation of genomics information, many signaling pathway and major drug target for drug discovery, are having difficulty in characterizing the function using conventional solution nmr spectroscopy and x-ray crystallography because phospholipid bilayers hindered fast tumbling and crystallization. Here, we studied the structure of the pf1 coat protein in oriented phospholipid bilayers by home-built solid-state NMR probe. Bacteriophage pf1 was purified from Paeudomonas Aeruginosa and coat protein of bacteriophage pf1 was isolated from DNA and other proteins.
Nitrosation of U.S. E.P.A. Classified Eleven Priority Pollutant Phenols
Chung, Yongsoon ; Lee, Seonghoon ; Motomizu, Shoji ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 393~400
Nitrosation of phenol (POH) was studied by adding hydrochloric acid and sodium nitrite to phenol solution with reaction temperature and time change. The optimum condition of nitrosation was found from the effects of hydrochloric acid and sodium nitrite concentration, reaction temperature, and reaction time changes on the production of nitrosophenol (POHNO). As a result, it was found that the optimum conditions were
concentration, more than 0.10 M of HCl concentration, temperature of
, and 3 hrs. of reaction time. In this condition, 10 U.S. E.P.A. classified priority environmental pollutant, phenols, were nitrosated. Nitrosated phenols were: POH, 2-Chlorophenol (2ClPOH), 2,4-diChlorophenol (2ClPOH), 2,4-dimethylphenol (24diMPOH), and 4-Chloro -3-methylphenol (4Cl3MPOH), and a small part of 2-nitrophenol (2NPOH). The
values of nitrosated phenols in acidic solution were around 300 nm, and those in basic solution were around 400 nm. Molar absorptivities (
) at the 400 nm of the nitrosated phenols in the basic solution were 1.5~2.0 times larger than those at 300 nm in acidic solution. It was also found by Capillary-HPLC chromatograms of the nitrosated phenol solutions that the production of the nitrosophenols were interfered by the excess concentration of nitrite (more than
A study of the metabolites for 7-keto-DHEA-acetate in human urine (II)
Kim, Yunje ; Lee, Jinhee ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 401~409
The 7-keto-DHEA-acetate is converted to 7-keto-DHEA, a metabolite of DHEA, and similar to its metabolism. We studied the metabolite M3, M4, and M5 of 7-keto-DHEA-acetate. The estimated molecular weight of M3 and M4 was 304 which were supposed to have more 3 hydroxyl and/or ketone groups. We could know that M3 is the 7-OH-DHEA which has the hydroxyl groups on 3 and 7-carbon and a ketone group on 17-carbon. In case of M4, it is the 7-oxo-diol metabolite which has the hydroxyl groups on 3 and 17-carbon and a ketone group on 7-carbon. The M5 was supposed that the molecular weight is 320 and has the three hydroxyl groups on 3, 6, and 16 carbon and the ketone group on 17-carbon. After dosing, 7-OH-DHEA showed the maximum urine flow in human urine after 5 hr and decreased rapidly. But we could find it until 58 hr why is a higher remaining substance.
Studies on the body - retaining rate of smoking-related carcinogens using some important volatile organic compounds (VOC)
Kim, K.H. ; Choi, Y.J. ; Hong, Y.J. ; Yang, H.S. ; Lee, J.H. ; Lee, Y.K. ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 410~415
In order to learn the emission characteristics of hazardous pollutants associated with environmental tobacco smoking (ETS), we measured the concentrations of major aromatic VOC and carbonyl compounds released from ETS. By acquiring the different smoke types of ETS, we were able to determine that the concentrations of those species range from ppb (normal exhaled air of smoker prior to smoking) to ppm levels (direct release of ETS without filter). Using these measurement data, we also evaluated the body-retaining rate of these compounds as the result of ETS. The results of our analysis indicated that predominant portion of them (e.g., > 99%) are retained as the result of cigarette smoking. To learn more about the potential impact of ETS, more extensive study may be required to assess the gross picture of pollutant deposition inside respiratory intake and their health-effects.
Qualitative Analysis of the Component Materials of Nuclear Power Plant Using Time-Resolved Laser Induced Breakdown Spectroscopy
Chung, Kun-Ho ; Cho, Yeong-Hyun ; Lee, Wanno ; Choi, Geun-Sik ; Lee, Chang-Woo ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 416~422
Time-resolved laser induced breakdown spectroscopy (TRELIBS) has been developed and applied to the qualitative analysis of the component materials of nuclear power plant. The alloy samples used in this work were carbon steels (A106 Gr. B; A336 P11; A335 P22), stainless steels (type 304; type 316) and inconel alloys (Inconel 600; Inconel 690; Inconel 800). Carbon steels can be individually distinguished by the intensity ratio of chromium to iron and molybdenum to iron emission lines observed at the wavelength raging from 485 to 575 nm. Type 316 stainless steel can be easily differentiated from type 304 by identification of the molybdenum emission lines at an emission wavelength ranging from 485 to 575 nm: type 304 does not give any molybdenum emission lines, but type 316 does. The inconel alloys can be individually distinguished by the intensity ratio of Cr/Fe and Ni/Fe emission lines at the wavelength raging from 420 to 510 nm. TRELIBS has been proved to be a powerful analytical technique for direct analysis of alloys due to its non-destructivity and simplicity.
Monitoring of Bisphenol A and Nonylphenol in Waterworks System of Seoul, Korea
Ham, Young-Kook ; Oh, Sea-Jong ; Kim, Sung-Whan ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 423~433
This study was examined occurrence of bisphenol A (BPA) and nonylphenol (NP) in waterworks system of Seoul, Korea from September 2002 to December 2003. The levels of BPA and NP in Han-river and its tributaries were as followed: Paldang-dam, ND(not detected)
, respectively. In water of 6 intake-station, the contents of NP and BPA were detected
, respectively. In the finished- and tap-water of three drinking water treatment plants (DWTPs) around Whangsuk-creek, BPA was not detected in all samples, while NP was in ppt levels in whole. Through the process of DWTP, also, the removal ratio of NP was above 80% in all this. Therefore, this result was suggested that levels of BPA and NP in waterworks system depended on non-point contaminants and swage treatment plants in the Han-river shed.
Study on the Enhancement of Reproducibility for Track Technology Using a Multi-dot Plate
Park, Y.J. ; Pyo, H.Y. ; Song, B.C. ; Jee, K.Y. ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 434~437
Alpha track technology can provide useful isotopic information of boron in the primary coolant water. In the quantitative analysis using the alpha track analysis, the shape or area of sample on the solid track detector becomes very important, especially for the analysis of liquid samples. In this research, a multi-dot plate has been developed for this purpose. The multi-dot plate provides fixed standard shape of the sample solution that stays inside of the printed circle, and consequently increases the reproducibility of the boron analysis.
Extraction Chromatographic Separation of Technetium-99 from Spent Nuclear Fuels for Its Determination by Inductively Coupled Plasma-Mass Spectrometry
Suh, Moo-Yul ; Lee, Chang-Heon ; Han, Sun-Ho ; Park, Yeong-Jae ; Jee, Kwang-Yong ; Kim, Won-Ho ;
Analytical Science and Technology, volume 17, issue 5, 2004, Pages 438~442
To determine the contents of
in the spent PWR (pressurized water reactor) nuclear fuels by ICP-MS (inductively coupled plasma-mass spectrometry), a technetium separation method using an extraction chromatographic resin (TEVA Spec resin) has been established.
was separated from a spent PWR nuclear fuel solution by this separation procedure and its concentration was determined by ICP-MS. The result agrees well with the value calculated by the program ORIGEN 2 and also the value measured by AG MP-1 resin/ICP-MS method described in our previous paper. It can be concluded that the present separation procedure is superior to the AG MP-1 resin procedure with respect to the time required for technetium separation as well as the efficiency of decontamination from other radioactive nuclides.