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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Analytical Science and Technology
Journal Basic Information
Journal DOI :
The Korean Society of Analytical Science
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Volume & Issues
Volume 13, Issue 6 - 00 2000
Volume 13, Issue 5 - 00 2000
Volume 13, Issue 4 - 00 2000
Volume 13, Issue 3 - 00 2000
Volume 13, Issue 2 - 00 2000
Volume 13, Issue 1 - 00 2000
Selecting the target year
Uncertainty in Measurements and Analyses (2) - Expression and Calculation of Uncertainty by the International Rule ( GUM ) -
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 49~49
Retention of Benzoic Acids in RPLC
Lee, Jae-Seok ; Choi, Beom-Suk ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 269~276
Chromatographic retention mechanism of seven benzoic acids in RPLC were investigated. Inorganic salt is pertinent for the measurement of dead time in benzoic acid. Logarthims of capacity factor (log k') and Hildebrand solubility parameter (
) showed proportional relationship which imply the hydrophobic effect of the retention mechanism in RPLC. Enthalpies of solute transfer showed inverse proportion to temperature and organic modifier ratio of the mobile phase. It was found that the S value showed positive slope in plot of log k' vs. volume fraction of water in mobile phase. Free energy change increases with increasing organic volume fraction. The hydrophobicity index,
(organic volume fraction) is inversely proportional to column temperature.
Determination of Volatile Organic Compounds (VOCs) in Drinking Water using Solid Phase Microextraction (SPME)
Park, Gyo-Beom ; Lee, Sueg-Geun ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 277~281
The solid phase microextrction (SPME) fiber which contains
polydimethyl siloxane of a stationary phase was used for the analysis of volatile organic compounds contained in aqueous solution. sixteen volatile organic compounds, which were spiked in blank water and extracted by the headspace SPME techique, were analyzed by gas chromatography/mass spectrometry (GC/MS). Analytical results showed that the percent of average recoveries and relative standard deviations were 97% and 4.7%, respectively. The value of detection limit was ranged from 0.01 to
. These results are more accurate than those obtained by the other methods such as purge and trap and headspace methods.
Analyses of Additives Applied in a Polycarbonate
Kim, Seog-Jun ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 282~290
In this study, polymer additives were extracted and separated by Soxhlet extraction method and the dissolution-precipitation method from a polycarbonate (optical grade) which completely absorbed UV light below 390 nm. Analytical techniques such as UV-Vis spectroscopy, FT-IR, and HPLC were applied to analyze additives in polycarbonate. Separated materials from the polycarbonate may be a complex mixture containing additives such as UV stabilizer, antioxidants (primary and secondary), monomers, and oligomers. Several compounds such as bisphenol A, Irganox 1010, and Cyasorb UV-5411 were identified by chromatograms and UV spectra obtained from RP HPLC analysis using Bondapak
column, methanol mobile phase, and a photodiode array (PDA) detector. Also, the content of UV-5411 in the polycarbonate was about 0.12 wt% by a quantitative analysis through UV spectroscopy.
Direct Determination of Molybdenum in Simulated Nuclear Spent Fuels by Inductively Coupled Plasma Atomic Emission Spectrometry
Choi, Kwang Soon ; Lee, Chang Heon ; Park, Soon Dal ; Park, Yang Soon ; Joe, Kih Soo ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 291~296
The SIMFUEL which composition is similar to PWR nuclear spent fuels was dissolved with a acid digestion bomb. An analytical conditions of ICP-AES for the direct determination of molybdenum in the uranium matrices without separation process were investigated. Based on the effect of uranium on molybdenum intensity. the most optimum wavelengths of molybdenum were found to be 202.030 and 203.844 nm. However, the method of standard additions is applied to overcome the effects of changing background caused by analyzing the sample solutions containing high concentration of uranium and the standard calibration solutions. The relative error of two methods, direct and indirect measurements with cation exchange resin separation procedures, was less than 5%. Therefore it was possible for this procedure to directly measure molybdenum in uranium matrices without separation. And this method was also applied to the determination of several percent of molybdenum in a U-Mo alloy.
Determination of Cadmium, Copper, Lead, Nickel, and Zinc in Sediments by ID-ICP/MS
Cho, Kyung-Haeng ; Park, Chang-Joon ; Suh, Jung-Kee ; Han, Myoung-Sub ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 297~303
Isotope-dilution inductively coupled plasma mass spectrometry was used to determine trace amounts of Cd, Cu, Pb, Ni and Zn in sediment. Sediment samples were dissolved by microwave digestion with addition of mixed acid (
, HF and
). Lead was determined after separation of alkaline and alkaline earth metals by an ammonium pyrrolidenedithiocarbarmate (APDC) solvent extraction. The other elements were determined after separation of iron, tin and titanium by hydroxide precipitation. Recovery efficiency of the analyte elements was not satisfactory, but most of matrix elements causing the isobaric interference could be effectively eliminated by the separation. Good agreement was achieved with the certified values in the analysis of the two sediment reference materials.
Determination of Trace Iodide in Sodium Bisulfite Aqueous Solution by Ion Chromatography with UV Detection
Park, Yang-Soon ; Kim, Do-Yang ; Choi, Kwang-Soon ; Park, Soon-Dal ; Han, Sun-Ho ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 304~308
The iodide was recovered from a simulated spent fuel to the sodium bisulfite aqueous solution. It was discussed that the trace iodide (below 1 ppm) was determined without the matrix effect of 0.1 M sodium bisulfite and 1 mM
in aqueous solution by ion chromatography with UV detection. AS4A-SC (DIONEX) column and UV-absorption spectrophotometer were used. The UV-absorption spectra of sodium bisulfite, nitric acid and iodide were obtained, and then 230 nm was selected as an absorption wavelength for iodide determination. 0.1 M NaCl eluent was optimum condition. In this condition the calibration curve of iodide was obtained on the range of about 0-1,000 ppb. The linear coefficient was 0.99993 and the detection limit was 5 ppb. The relative standard deviation was 1.26%.
Quantitative Analysis of Trace Metals in Lithium Molten Salt by ICP-AES
Kim, Do-Yang ; Pyo, Hyung-Yeal ; Park, Yong-Joon ; Park, Yang-Soon ; Kim, Won-Ho ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 309~314
The quantitative analysis of various trace metals including fission products in lithium molten salts has been performed using a inductively coupled plasma atomic emission spectrometer (ICP-AES). The spectral interferences of lithium content, 500, 1,000 and 2,000 mg/L, in the sample solution were investigated using an optimum wavelength for the respective metal species. As a result, the line intensities for Y, Nd, Sr, and La had no influences from the lithium content up to 2,000 mg/L, while Mo, Ba, Ru, Pd, Rh, Zr and Ce showed spectral interferences of 10% to 50%. The group separation of metals from lithium in the molten salts solution was carried out by adding ammonia water into the solution. The recovery of Ru, Y, Rh, Zr, Nd, Ce, La and Eu was found to be over 90%, while Mo, Ba, Pd, and Sr provided low recovery percentages.
Spinach Root-Tissue Based Amperometric Biosensor for the Determination of Hydrogen Peroxide
Lee, Beom-Gyu ; Yoon, Kil-Joong ; Kwon, Hyo-Shik ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 315~322
The response characteristics of the bioelectrode developed by the co-immobilization of spinach root tissue and ferrocene in a carbon paste matrix for the amperometric determination of hydrogen peroxide were evaluated. In the range of electrode potential examined (-0.3~0.0V vs. Ag/AgCl). the response time was relatively short (
sec) and it responded in the wide range of pH. Also, its detection limit was
(S/N=3) and a relative standard deviation of the measurements which were repeated 15 times using
hydrogen peroxide was 1.87%. The bioelectrode sensitivity decreased to 40% of the original value in 19 days of continuous use.
Selective Separation of Zr(IV) and Th(IV) by (polystyrene-divinylbenzene)-thiazolylazo Chelating Resins(I)
Lee, Won ; Yook, Jin-Kyung ; Lee, Si-Eun ; Lee, Chang-Heon ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 323~331
Two chelating resins, XAD-16-TAC and XAD-16-TAO were synthesized by Amberlite XAD-16 macroreticular resin with 2-(2-thiazolylazo)-p-cresol (TAC) and 4-(2-thiazolylazo)-orcinol (TAO) as functional groups. The sorption behaviour of Zr(IV), Th(IV) and U(VI) with two chelating resins were examined with respect to the effect of pH and masking agent by batch methods. It was obtained that the optimum pH was in the range of 5-6, and two chelating resins showed good separation efficiency of Zr(IV) or Th(IV) by using
as a masking agent. Characteristics of desorption were investigated with 0.1-2 M
as desorption agent. It was found that 2 M
showed high desorption efficiency to most of metal ions except Zr(IV). XAD-16-TAC resin is applied to separation and preconcentration of trace Zr(IV) from mixed metal ions. Also, Th(IV) ion can be successfully separated from U(VI) and Zr(IV) ion by using XAD-16- TAO resin.
The Properties of Carbonaceous Desiccant Derived from Phenolic Resin
Oh, Won-Chun ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 332~337
The study on the nitrogen adsorption, surface properties and water adsorption capacity of the carbonaceous desiccants derived from phenolic resin was carried out. In the nitrogen adsorption study on the carbonaceous desiccants, Type II isotherm for each sample was obtained. Furthermore, the adsorbed volume decrease with water washing of the desiccant. The
of the carbonaceous desiccants was
before washing and
after washing, respectively. The morphology of needlelike formation before washing and spherical particle after washing with water were observed from SEM micrographs. Finally, from the water adsorption effects, the percentage of the water loading capacity was 25-63%, and the capacity was good at relatively low humidity.
Synthesis and Characterization of Intercalation Compounds of Alkylsulfonate into Hydrated and Dehydrated Zinc
Huh, Young Duk ; Park, Sung Hun ; Jun, Tae Hyun ; Park, Yong Jun ; Park, Yang Sun ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 338~345
The intercalated compounds of alkylsulfonate into hydrated and dehydrated zinc were synthesized. From the XRD, FT-IR, TGA, elemental analysis data, and the molecular size, the orientation of the intercalated alkylsulfonates was determined. For the hydrated compounds, alkylsulfonates were intercalated into hexaqua zinc layer with the bilayer structure of
angle of inclination. For the dehydrated compounds, alkylsulfonates were directly bonded to zinc ion with the bilayer structure of
angle of inclination.
Induction of Boiling Stable Proteins by Cold and ABA Treatment in Radish Cotyledon and Hypocotyl
Cho, Bong-Heuy ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 346~350
Boiling stable proteins of 53 kDa and 29 kDa existed natively in the cotyledons of Bak Kyoung, fall radish (Raphanus raphanistrodes L.) Boiling stable proteins of 36 kDa and 16.5 kDa were newly induced by cold stress and the proteins of 53 kDa and 29 kDa increased during the cold stress. The proteins of 53 kDa were denatured within 2 hrs after removing cotyledons from plants. Boiling stable proteins of 53 kDa existed natively in the hypocotyls as much as in the cotyledons whereas 24 kDa and 18 kDa proteins were increased by stress. Boiling stable proteins of 53 kDa were induced and those of the 25 kDa and 23 kDa were increased by cold treatment and ABA treatment in the cotyledons of Jangchundaehyung F1 spring white (Raphanus raphanistrodes L.). These results showed the differences of induced boiling stable proteins between fall radishes and spring radishes. Cycloheximide inhibited the induction of 25 kDa and 23 kDa proteins during stress. 22 kDa native protein disappeared during ABA treatment and reappeared by cycloheximide treatments. It may be explained that cycloheximide was responsible for the destruction process of proteins in the living organisms. The profile of boiling stable proteins in hypocotyls of spring radishes during stress was same as that of fall redishes.
Decolorization of Wastewater and Collecting of Sludge from Hanji Production
Choi, Hee-Seon ; Kim, Tai-Jin ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 351~356
The decolorization of wastewater and the collecting conditions of final sludge from hanji production were investigated. Black wastewater (50 mL) from the process cooking with NaOH could be effectively decolorized by 2.0 g of
So, if excess bleach
used in bleaching process were recycled, the decolorization of wastewater by adding less
would be successfully realized. However, the decolorization by electrolyzed oxidation was ineffective. The final sludge could be effectively collected by polymer coagulator, but the addition of
was required, and the pure fibrous sludge could not be collected. Therefore, surfactants such as triethanolamine and Triton X-100 were used instead of polymer coagulator. The collecting yield was obtained about 85% as good as those by polymer coagulator. When mixed surfactants were used in collecting the final sludge,
was not required. In addition, as the pure fibrous sludge could be collected, the effective recycling of sludges would be done.
Analysis for 16 Polynuclear Aromatic Hydrocarbons (PAH) in Sewage Sludge and Soil
Kim, Jong-Hun ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 357~367
The polycyclic aromatic hydrocarbon (PAH) content in sewage sludge and in farm soils were determined by gas chromatography linked to mass spectrometry (GC/MS) with use 2-ethylantracene as internal standards. Twelve PAH were identified in both sludges with naphthalene (
) being the most predominant in industrial sludge and pyrene (
) in municipal sludge. The total PAR content in industrial sludge and in municipal sludge were
respectively. PAH were contained in paddy soils and the concentration were very low in the range of
. The total PAH content in industrial and in municipal sludge were about 9.2 times and 6.3 times greater than in paddy soils (
Adsorption Characteristics of the Heavy Metals, Cd(II) and Pb(II) Ions, on the Si-immobilized Sargassum horneri
Park, Kwang-Ha ; Park, Mi-A ; Kim, Young-Ha ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 368~377
Si-immobilized Sargassum horneri was used to study the adsorption characteristics along with maximum adsorption conditions of heavy metal ions, Cd(II) and Ph(II) on the Si-immobilized Sargassum horneri. More amount of Cd(II) and Pb(II) ions on the Si-immobilized Sargassum horneri than Sargassum horneri were adsorbed. And Pb(II) ions were more adsorbed in all algae than Cd(II) ions more effectively in alkaline than in acidity. Recovery ratios of Cd(II) and Pb(II) ions on the Sargassum horneri were 58.0-62.6%, 61.2-64.4% respectively, Si-immobilized Sargassum horneri 56.8-92.7%, 37.8-47.9%. Recovery ratio of Cd(II) ion was higher on the Si-immobilized Sargassum horneri but it of Pb(II) ion was lower on the Si-immobilized Sargassum horneri.
Simultaneous Analytical Techniques for Determination of 8 Synthetic Food Colors in Foods by HPLC
Park, Sung-Kwan ; Lee, Chang-Hee ; Park, Jae-Seok ; Yoon, Hae-Jung ; Kim, So-Hee ; Hong, Yeun ; Lee, Jong-Ok ; Lee, Chul-Won ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 378~384
This Study has been carried out to develop a method of analysis of 8 permitted synthetic food colors [including Brilliant Blue FCF(B1), Indigocarmine (B2), Fast green FCF(G3), Amaranth (R2), Erythrosine (R3), Allura red (R40), Tartrazine (Y4), Sunset Yellow FCF (Y5)] in Korean foods by HPLC. After adjusting to 0.5% HCl, each of the food colors extracted was eluted by Sep-pak
cartridge. Eluates were then determined by high performance liquid chromatograph with a UV-VIS detector. Recoveries of the 8 synthetic food colors were found to be 81.2-98.0% for soft drinks, 80.6-96.1% for candy, 79.8-96.3% for chewing gum, 76.5-91.7% for cereals, 79.9-93.8% for ice cream and 78.6-94.7% for jelly, respectively. The detection limits were
Analysis of Amineptine and its Metabolites in Human Urine by Gas Chromatography/Mass Spectrometry
Lee, Jeong Ae ; Kim, Younglim ; Lho, Dong-Seok ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 385~393
A gas chromatography-mass spectrometric (GC/MS) procedure for the determination of amineptine (dihydro-10, 11-dibenzo[a, d] cycloheptenyl-5-amino-7-heptanoic acid) and its main metabolites in human urine was described. Amineptine has been known to be extensively metabolized by the
-oxidation of the heptanoic side chain with formation of pentanoic side chain metabolite (
-metabolite), and lactamizarion by internal dehydration of (
-oxidized metabolite (
-lactam). The detection of these compounds was based on acid hydrolysis, liquid-liquid extraction and trimethylsilylated derivatization of the carboxylic acid group. For the determination of amineptine and its metabolites in biological fluids, selected ions at the m/ 192, molecular ion and one of the characteristic ions were monitored by GC/MS. On the excretion study of amineptine in human urine, 70-90% of amineptine,
-metabolite were found to be excreted within 4 hours and their excretion completed within 20 hours.
Removal of Heavy Metal Ions by Using Natural Zeolite Comixed with Montmorillonite
Moon, Jung-Ho ; Kim, Yoonho ; Kim, Young-Man ; Kim, Chon-Han ; Kwak, Hyon-Tae ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 394~398
The mineralogical properties of natural zeolite comixed with montmorillonite were investigated by the chemical composition analysis, X-ray diffraction analysis, and differential scanning calorimetry. The experimental results on the removal of heavy metal ions by using the natural sample are summerized as follows. The removal of the heavy metal in solution is greatly influenced by the pH. Also, the removal capacity of heavy metal ions by zeolite and montmorillonite have increased in order of
Application of Reversed-Phase Solid Phase Extraction for the HPLC Analysis of Microcystins in Water
Kim, Myeong-Hee ; Kim, Tae-Seung ; Kim, Tae-Keun ; Park, Sun Ku ;
Analytical Science and Technology, volume 13, issue 3, 2000, Pages 399~402
To determine the concentrations of microcystins present in lake water or in tap water using high performance liquid chromatography, it is necessary to concentrate a large volume of water samples (about 20 L) into very small volume (0.1-0.3 mL). Concentration can be conveniently done when disc type solid phase extraction (SPE) apparatus is used. Using this apparatus we have investigated the recovery rates of three kinds of microcystins, RR, YR, LR. The recovery rates were relatively low and the reproducibilities were not good either. It is expected, however, that the appropriate selection of the disc conditioning and eluting solvents and reproducible reconcentration process after SPE will improve both the recovery rates and the reproducibilities.