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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
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Volume & Issues
Volume 23, Issue 6 - Dec 2010
Volume 23, Issue 5 - Oct 2010
Volume 23, Issue 4 - Aug 2010
Volume 23, Issue 3 - Jun 2010
Volume 23, Issue 2 - Apr 2010
Volume 23, Issue 1 - Feb 2010
Selecting the target year
Adsorption characterisctics of mixed resins for perchlorate ion
Park, Su-Min ; Jeon, Byong-Hun ; Jeong, Hyuk ; Paeng, Ki-Jung ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 429~436
DOI : 10.5806/AST.2010.23.5.429
The present research evaluates the efficiency of mixed resins between anion exchange resin and active carbon. We expected synergic effect from advantages of both adsorbents. Especially, this research focused on the removal of high cencentrated perchlorate ion from demilitarization solution. The total amount of the adsorbed perchlorate ion is increased considerably with mixed resins between mono functional anion exchange resin and granular active carbon from a single adsorbent. Results demonstated that this process not only improve the efficiency of adsorbing perchlorate, but save the time, space and cost for treating perchlotrate waste solution, because of reducing organic contaminant removing process. The interference effects from coexisting anions are not significant and can successfully applied to real demilitarization sample.
The study of analytical method for sulfonamide antibiotics and their metabolites in environmental samples
Kang, Young-Yeul ; Hwang, Seung-Ryul ; Shin, Sun-Kyoung ; Koo, So-Hyun ; Sim, Ki-Tae ; Kim, Tae-Seung ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 437~445
DOI : 10.5806/AST.2010.23.5.437
The aim of this study was to develop an analytical method for sulfonamide antibiotics (sulfadiazine, sulfamerazine, sulfamethazine, sulfamethoxazole, sulfathiazole) and their metabolites (
-glucuronide) in environmental samples. The solid phase extraction (SPE) with LC/ESI-MS/MS have been used for the analysis of target compounds, and the recoveries of SPE clean-up were at the range of 12-94% for C18 cartridge, 60-95% for HLB cartridge, 25-123% for MCX cartridge, and 70-90% for tandem HLB/MCX. By established method, detection limit, recovery, and relative standard deviation were 0.001~0.187 ng/mL, 66~115%, and 5~17%, respectively. This method was effective and sensitive to use for the simultaneous determination of sulfonamide antibiotics and their metabolites in environmental samples. Four sulfonamide antibiotics were detected at the range of 0.008~2.153 ng/mL. For metabolites, only
-acetylsulfamethoxazole was detected, but the concentration was under the MDL level.
Comparison of recovery rates of DNPH-Cartridge sampler in the analysis of odorous carbonyl compounds
Hong, One-Feel ; Lim, Sung-Min ; Kim, Ki-Hyun ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 446~456
DOI : 10.5806/AST.2010.23.5.446
In this study, the performance characteristics of DNPH sampling were investigated in the collection and analysis of 5 carbonyl compounds (CC) in air using the cartridge products produced by three different makers. For these experiments, gaseous standards of 5 CCs were prepared to cover 9 concentration levels for each compound (33~2600 nmol). Some cartridge products exhibited relatively high blank values of acetaldehyde (AA) and propionaldehyde (PA). The recovery rates of all three cartridges showed moderate reduction as the molecular weight of CC increased. In addition, when the recovery rate was compared by percent error (%), the most stable patterns were achieved in the intermediate concentration range of 263~1312 nmol (in case of AA). The overall results of our study suggest that the optimal range of recovery for a given concentration range should be considered to obtain the most reliable data for the DNPH cartridge method.
The analysis of pharmaceuticals in drinking water by HPLC/ESI-MS/MS
Park, Mi-Sun ; Kim, Byung-Joo ; Myung, Seung-Woon ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 457~464
DOI : 10.5806/AST.2010.23.5.457
The analytical method of four pharmaceuticals (virginiamycin, erythromycin, tylosin and cimetidine) in drinking water was developed. Effective simultaneous sample clean-up and extraction by solid-phase extraction (SPE) using HLB cartridge prior to LC/ESI-MS/MS analysis were performed. A linear correlation observed in the calibration curves for drinking water in the range of 0.01~2.0 ng/mL showed above
=0.995. Absolute recovery was in the range of 64.7~118.1% (except cimetidine (37.7~48.1%)). Limit of detection (LOD) and limit of quantitation (LOQ) in spiked drinking water matrix were in the range of 1.6~74.8 pg/mL and 5.5~249.7 pg/mL, respectively. The established method can be used to determine low pg/mL levels of pharmaceuticals in the drinking water.
A comparative analysis of volatile organic compound levels in field samples between different gas chromatographic approaches
Ahn, Ji-Won ; Pandey, Sudhir Kumar ; Kim, Ki-Hyun ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 465~476
DOI : 10.5806/AST.2010.23.5.465
In this study, a number of volatile organic compounds (VOCs) including benzene, toluene, p-xylene, styrene, and methyl ethyl ketone were analyzed from samples collected in ambient air and under the field conditions. These samples were analyzed independently by two different set-ups for VOC analyses, i.e., between  gas chromatography/flame ionization detector with tube sampling - (F-T system) and  gas chromatography/mass spectrometer with bag sampling (M-B system). The analytical results derived by both systems showed fairly similar patterns in relative sense but with moderately large differences in absolute sense. The results of M-B system were high relative to F-T system with the F-T/M-B ratio below 1. If the relative biases of the two measurement techniques are derived in terms of percent difference (PD) in concentration values, the results were generally above 35% on average. A student t-test was applied to investigate the statistical significance of those differences between the systems. The results of both analytical systems were different at 95% confidence level for toluene, p-xylene, styrene, and methyl ethyl ketone (P < 0.043). However, F-T and M-B systems showed strong correlations for toluene and p-xylene. The observed bias is explained in large part by such factors as the differences in standard phases used for each system and the chemical loss inside the bag sampler.
Determination of personal care products in aquatic environmental samples by GC/MS
Lee, In-Jung ; Lee, Chul-Gu ; Heo, Seong-Nam ; Lee, Jae-Gwan ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 477~484
DOI : 10.5806/AST.2010.23.5.477
Personal care products are a diverse group of synthetic organic chemicals such as antimicrobial compounds, UV filters and organo-phosphate flame retardants and derived from individual usages of soaps, toothpaste and cosmetics. It has been detected in municipal sewage effluent and various environmental samples such as surface water, marine, soil, sediment and aquatic biota in many countries. The occurrence of personal care products in environmental samples could negatively impact the health of the ecosystem and humans, due to persistent, long-term chronic exposure of aquatic organisms. In this study, fifteen personal care products in aquatic environmental samples were determined by gas chromatography-mass spectrometry (GC-MS) with liquidliquid extraction (LLE). Method detection limits were in the range of
. Two compounds (TCEP, TCPP) were detected in surface waters and seven compounds (triclosan, 4-MBC, EHMC, BP-3, TCEP, TPP, TBEP) were detected in sewage treatment plants (STP) influents or effluents.
Development of soil certified reference material for determination of the hazardous elements
Kim, In-Jung ; Min, Hyung-Sik ; Suh, Jung-Ki ; Han, Myung-Sub ; Lim, Myung-Chul ; Kim, Young-Hee ; Shin, Sun-Kyoung ; Cho, Kyung-Haeng ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 485~491
DOI : 10.5806/AST.2010.23.5.485
A certified reference material (CRM) of KRISS 109-03-SSD was developed for the analysis of hazardous elements in soil. The target elements were As, Cd, Cr, Cu, Hg, Ni, Pb, Zn being regulated by the Soil Environment Conservation Act. Starting material was collected from tailing dump of an unworked tungsten mine at Sangdong (Gangwon-do, Korea). The starting material under-went through a series of fabricating process steps of screening, drying, grinding, sieving, blending, bottling, sterilization and was certified according to the ISO Guide 35. Isotope dilution-inductively coupled mass spectrometry (ID-ICP/MS) and instrumental neutron activation analysis (INAA) were used for the measurement. Homogeneity was tested according to ISO 13528 annex B. The certified values were determined using the results from two different methods or from two independent measurements using a method. Finally, certified values of seven elements of arsenic, cadmium, chromium, copper, lead, nickel and zinc were determined. Mercury did not satisfied the criteria of homogeneity and the result would be provided for information only, together with iron and tungsten. It was also studied, the extractable fraction of elements by aqua regia according to the ISO 11466 protocol being frequently studied for the purpose of environmental monitoring. It was performed as a inter-laboratory study by 6 laboratories of a public institute and universities. Standard deviation among the laboratories was much bigger than the uncertainty of the certified value. The result of inter-laboratory study on the extractable fraction will be provided for information, only.
Study on mercury concentrations of freshwater fish from Lake An-dong and its upper stream
Byeon, Myeong-Seop ; Lee, Jae-Yoon ; Park, Jin-Joo ; Shin, Sun-Kyoung ; Han, Jin-Seok ; Kim, Young-Hee ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 492~497
DOI : 10.5806/AST.2010.23.5.492
In this study, mercury concentrations in freshwater fish from Lake An-dong basin were investigated and were compared with the results of the national freshwater fish monitoring survey. The mercury concentrations of fish from Lake An-dong were in the range of 37~611 ng/g and Korean piscivorous chub, the top predator showed the highest average mercury concentrations,
. Most of fish caught from upstream of Lake An-dong were herbivorous and omnivorous, and goby minnow and pale chub showed relatively lower mercury concentrations of
, respectively. Especially, mercury concentrations of long nosed barbel and largemouth bass caught from Lake An-dong were found to be higher than those of the average of the national survey monitoring data.
The isobaric effect correction and measurement of the Ru isotopes by thermal ionization mass spectrometry
Jeon, Young-Shin ; Kim, Jung-Suk ; Han, Sun-Ho ; Song, Kyu-Seok ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 498~504
DOI : 10.5806/AST.2010.23.5.498
It is very difficult to get stable ion peak intensity of ruthenium by thermal ionization mass spectrometry because of its high ionization potential and high volatility of its oxides which causes to lose much of ruthenium ions, so the intensity of the signal decrease quickly. Accordingly, a study was performed in oder to increase the ionization efficiency and to prevent sample losses due to volatilization and to check with isobaric effect by impurities in filament for the measurement of ruthenium isotopes. Both single filament and double filament were tested. The former was proved to be more efficient for the stable and strong intensity of signal and revealed less isobaric effect from the molybdenum (Mo) as a filament impurity. Also, when the temperature of filament increased too high, the isobaric effect from Mo greatly appeared. That is, Mo impurity from filament gave a serious effect for measuring the ruthenium isotopes. It was proved to be of importance that filament current should be slowly increased with time interval. Finally, ruthenium isotopes were accurately measured by correction with measuring
Electrochemical determination of hydrogen peroxide using carbon paste biosensor bound with butadiene rubber
Yoon, Kil-Joong ;
Analytical Science and Technology, volume 23, issue 5, 2010, Pages 505~510
DOI : 10.5806/AST.2010.23.5.505
When polybutadiene dissolved in toluene was a binder of carbon powder, the volatility of solvent just after electrode fabrication assured the mechanical solidity of the carbon paste electrode. This characteristic met the qualifications for practical use of carbon paste electrodes. A new enzyme electrode bound with butadiene rubber was constructed. In order to confirm whether it shows quantitative electrochemical behaviors or not, its electrochemical kinetic parameters, e.g. the symmetry factor, the exchange current density, the capacitance of double layer, the time constant, the maximum current, the Michaelis constant and other factors were investigated. These experimental facts showed that butadiene rubber is a recommendable binder for practical use of a carbon paste electrode.