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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 9, Issue 4 - 00 1996
Volume 9, Issue 3 - 00 1996
Volume 9, Issue 2 - 00 1996
Volume 9, Issue 1 - 00 1996
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Analysis of sugars and total amino acids-content of young spring and fall-radish cotyledons and hypocotyls by cold and polyamine-treatments
Cho, Bong-Heuy ; Park, Sun Young ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 325~330
The content of reducing sugars and sucroses was increased by cold- and PA-treatment in cotyledons of spring radish. But in cotyledons of fall radish, the content of reducing sugars, and sucroses was increased by cold treatment but was not increased by cold- and PA-treatment. Total free amino acids in cotyledons of spring radish were increased by cold treatment, but were not increased in cotyledons of fall radish. The results show that cold sensitive spring radishes were adapted by regulating of cellular osmosis and show that the physiological and biochemical metabolism of spring radish was much different from the fall radish. We report first that polyamine has synergetic effect with cold stress on cotyledons of spring radish, but not on cotyledons of fall radish.
Analysis of Volatile Flavor Constituents in Green Tea Flower
Baik, Soon Ok ; Bock, Jin Young ; Han, Sang Bin ; Cho, Kyung Suk ; Bang, Guk PiI ; Kim, Il Kwang ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 331~335
Flavor constituents of green tea flower produced in Korea were analyzed by gas chromatography and mass spectrometry. 56 compounds in sample were separated and indentified as 22 hydrocarbons, 14 alcohols, 6 aldehydes, 5 esters, and 9 others. Higher concentrated substances were heneicosyl formate,
-phenyl ethyl alcohol, and acetophenone. Germacrene D as a sesquiterpene were also identified.
Studies on Solvent Extraction and Analytical Application of Metal-dithizone Complexes(I). Separation and Determination of Trace Heavy Metals in Urine
Jeon, Moon-Kyo ; Choi, Jong-Moon ; Kim, Young-Sang ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 336~344
The extraction of trace cobalt, copper, nickel, cadmium, lead and zinc in urine samples of organic and alkali metal matrix into chloroform by the complex with a dithizone was studied for graphite furnace AAS determination. Various experimental conditions such as the pretreatment of urine, the pH of sample solution, and dithizone concentration in a solvent were optimized for the effective extraction, and some essential conditions were also studied for the back-extraction and digestion as well. All organic materials in 100 mL urine were destructed by the digestion with conc.
30 mL and 30%
50 mL. Here,
was added dropwise with each 5.0 mL, serially. Analytes were extracted into 15.0 mL chloroform of 0.1% dithizone from the digested urine at pH 8.0 by shaking for 90 minutes. The pH was adjusted with a commercial buffer solution. Among analytes, cadmium, lead and zinc were back-extracted to 10.00 mL of 0.2 M
from the solvent for the determination, and after the organic solvent was evaporated, others were dissolved with
and diluted to 10.00 mL with a deionized water. Synthetic digested urines were used to obtain optimum conditions and to plot calibration-eurves. Average recoveries of 77 to 109% for each element were obtained in sample solutions in which given amounts of analytes were added, and detection limits were Cd 0.09, Pb 0.59, Zn 0.18, Co 0.24, Cu 1.3 and Ni 1.7 ng/mL, respectively. It was concluded that this method could be applied for the determination of heavy elements in urine samples without any interferences of organic materials and major alkaline elements.
Electrochemical Properties of Copper(II) Complexes with Multidentate N,O-Schiff Base Ligands
Kim, Sun-Deuk ; Jang, Gi-Ho ; Kim, Jun-Kwang ; Lee, Seong-Woo ; Joung, Jae-Joung ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 345~354
Algal(II) Multidentate N, O-Schiff base ligands, such as bis(salicylaldehyde) ethylenediimine(SED), bis(salicylaldehyde) propylenediimine(SPD), bis(salicylaldehyde) diethylenetriimine(SDT), bis (salicylaldehyde) triethylenetetraimine(STT) and bis(salicyl-aldehyde)tetraethylenepentaimine(STP) were prepared. Stepwise proton dissociation constants of the Schiff base were measured potentiometrically in ethanol and a mixture of 70% dioxane and 30%
. The stability constants of copper(II)-Schiff base complexes were in the order of Cu(II)-SPD
Cu(II)-STP. Oxidation-reduction process of the Cu(II)-Schiff base complexes was involved with one-electron reaction.
A study on Chemical Constituents from Marine Sponge Luffariella sp.
Park, Sun Ku ; Kim, Taek Jae ; Cho, Hyun-Woo ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 355~363
The two metabolites, Aaptamine(1) and Demethyl(oxy)aaptamine(2) were isolated from marine Sponge Luffariella sp., collected in October 1992, Manado Bay, Sulawesi in Indonesia showed in vitro activity against KB cancer cell line. Their structures were elucidated by
(1 bond) heteronuclear multiple quantum coherence spectroscopy(HMQC), electron ionization mass spectroscopy(EIMS), ultra-violet spectroscopy(UV) and infrared spectroscopy(IR).
Studies on the Separation and Preconcentration of Metal Ions by Chelating Resin containing (Polystyrene-divinylbenzene)-thiazolylazo phenol Derivatives(II)
Lim, Jae-Hee ; Seol, Kyung-Mi ; An, Hye-Sook ; Chung, Koo-Chun ; Lee, Chang-Heon ; Lee, Won ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 364~372
The sorption and desorption properties of U(VI), Th(IV), Zr(IV), Cu(II), Pb(II), Ni(II), Zn(II), Cd(II) and Mn(II) ions on XAD-16-[2-(2-thiazolylazo)-p-cresol](TAC) chelating resin were studied by elution method for selective separation, concentration and recovery of trace metal ions in sea water. The optimum conditions for the sorption of metal ions were examined with respect to flow rate, pH and concentration of buffer solution. The overall capacities of some metal ions on this chelating resin were 0.41mmol U(VI)/g resin, 0.55mmol Th(IV)/g resin, 0.43mmol Cu(II)/g resin, and 0.32mmol Zr(IV)/g resin, respectively. The elution order of metal ions obtained from breakthrough capacity and overall capacity at pH 5.0 was found as Th(IV)>Cu(II)>U(VI)>Zr(IV)>Pb(II)>Ni(II)>Zn(II)>Cd(II)>Mn(II). Desorption of characteristics for metal ions were investigated with desorption agents such as
. It was found that most of metal ions except Zr(IV) showed high desorption efficiency with 2M
. But, desorption and recovery of Zr(IV) ion were successfully performed with 1M
. The resin was applied for separation and preconcentration of trace amount of U(VI) ion from artificial sea water and the recovery of U(IV) was over 96%.
Adsorption and Recevery of Cu(II) and Zn(II) Ions by Algal Biomass
Park, Kwang Ha ; Jun, Bang Ook ; Kim, Han Su ; Kim, Young Ha ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 373~381
Algal biomass was used in our study in order to remove some metals. After packing of 40~60 mesh algae powder into column for use of metal adsorbent, the metal solution of 1mL/min of flow rate was eluted to adsorb in algae. More amount of Cu(II) or Zn(II) ion in green algae, Ulva pertusa Kjellman than in brown algae, Sargassum horneri (Turner) C. Agarch were adsorbed and Cu(II) ion was more adsorbed in both algae than Zn(II) ion. Recovery of metal from algae is showing higher in acidic or neutral than in alkalic conditions. Cu(II) ion is recovered relatively higher than Zn(II) ion in our system.
A study on development of CRM by means of XRF analysis for fine ceramic (
Kim, Young Man ; Jeong, Chan Yee ; Lim, Chang Ho ; Song, Taek Yong ; Lee, Dong Soo ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 382~391
In this study, 12 different chemical species of fine ceramic(
) were synthesized as the standard materials for the fast and accurate measurements of X-ray fluorescence spectrometry. Samples were diluted to sixteen times with the filling compound (
) in order to remove the matrix effect, and to get the convenient storage and homogeneity of ingredients. The matrix effects among the ingredients were corrected by the empirical coefficient method based on the Lucas-Tooth and Price model. The standard curve on 12 standard materials containing 15 elements were obtained by using X-ray fluorescence spectrometry at three different laboratories. The correlation factors of BaO, PbO, SrO,
, CaO indicated the relati vely good agreement over 0.995 among the three different laboratories.
showed the poor linearity because of their low fluorescence intensities.
A Study on the Identification of Hazardous Organic Substances for Industrial Classification
Park, Sun Ku ; Kim, Sung Soo ; Ko, O Suk ; Jung, Sung Woong ; Park, Jun Dae ; Ryu, Seung Do ; Ryu, Jae Kyun ; Cho, Hyun-Woo ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 392~398
Eleven organic chemical substances, tetrachloroethylene, ethyl benzene, p-xylene, o-xylene, isopropyl benzene, n-propyl benzene. 1,2,4-trimethyl benzene, 1,3,5-trimethyl benzene, p-isopropyl toluene. see-butyl benzene, and naphthalene, which have hazardously influenced to human, were extracted from untreated wastewater collected at 26 companies of 8 types industry in the basin of Kwangju stream. Their structures were elucidated by Gas Chromatography/Mass Spectrometry(GC/MS) and in comparison with each standard reagents.
Analysis of Volatiles in Sesame Oil Collected by Simultaneous Distillation/Extraction(SDE) and Dynamic Headspace Sampling (DHS)
Ha, Jaeho ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 399~405
The flavor compounds of the oil from roasted sesame seeds were collected by simultaneous steam distillation/ extraction(SDE) and dynamic headspace sampling(DHS) and were analyzed using a gas chromatograph equipped with a flame ionization detector and connected into a mass spectrometer. Among the flavor compounds collected by the SDE method, 46 compounds were identified. They consisted of 6 alcohols, 6 aldehydes, 5 ketones or acids, 4 furans or phenols, 12 pyrazines, 4 pyridines or thiazoles, and others. Thirty six compounds were identified by DHS and many of them were the same as those identified by the SDE method. However, some compounds such as 1-hexanol, pentanal, and dimethylsulfide were identified only by the DHS method.
Adsorption Behaviors of Transition Metal Ions Using the Poly(N,N'-bispalmitoyl-1, 12-diaza-3, 4;9,10-dibenzo-5,8-cyclopentadecane) in Aqueous Solution
Shin, Young-Kook ; Kwon, Soo Han ; Kim, Hae Joong ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 406~410
The adsorption behaviors of transition metal ions on the poly(N,N'-bispalmitoyl-1, 12-diaza-3, 4;9,10-dibenzo-5,8-cyclopentadecane) has been determined by adsorption process in aqueous solution. The order of concentration factor(CF) and the amount of adsorption were Cu(II)
The Distribution of Methemoglobin in the Blood
Seo, Baeseck ; Kim, Namyee ; Park, Sungwoo ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 416~419
We performed a comparative study of analysis methods of Methemoglobin with a CO-Oximeter and an UV/Vis(SATO's Methd). The correlation coefficient of two method for the MetHb% determinations was estimated to be 0.9575. The concentrations of MetHb on most of the dead burn victims(87%) were shown below 10%. The concentrations of COHb were rang between 15% and 85%.
Effect of volatile organic solvents on the liver in rat
Seo, Baeseck ;
Analytical Science and Technology, volume 9, issue 4, 1996, Pages 420~422
SGPT, SGOT and Potassium ion etc. were measured from rats who were injected with 0.2mL of 25% ethanol or 25% methanol and 0.05mL of 99.5% toluene every other day during 30 days. In rats group were injected with toluene, the SGPT was shown 4~5 times as much as that of control group. However, in the methanol group, the SGPT was shown 2~5 times as much as that of control group. On the other hand, in the ethanol group, the SGPT was increased to about twice of control group.