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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
Editor in Chief :
Volume & Issues
Volume 21, Issue 6 - Dec 2008
Volume 21, Issue 4 - Oct 2008
Volume 21, Issue 5 - Oct 2008
Volume 21, Issue 3 - Aug 2008
Volume 21, Issue 2 - Jun 2008
Volume 21, Issue 1 - Feb 2008
Selecting the target year
Characteristics of the release of chromium, copper, and arsenic from CCA-treated wood exposed to the natural environment
Koo, Jinhoi ; Song, Byeongyeol ; Kim, Hekap ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 1~8
This study was conducted to investigate the characteristics of the leaching of metal components from CCA-treated wood during outdoor exposure. CCA-treated wood specimens were placed horizontally or buried vertically into the soil, and then exposed to the natural environment for a year. Wood samples were collected from the side of the horizontal wood specimens using a drill and saw dust samples were collected at the end of the exposure. Soil samples were also obtained around the wood specimens and at different depths of the posts. Wood and soil samples were analyzed for metals using an atomic absorption spectrometer. Monthly metal concentrations varied greatly and more metals were released when wood specimens were exposed vertically than horizontally. Arsenic was released from the wood by 80 % of the intial content. In addition, more leaching was observed from the zone below the ground than above the ground, and soil around the posts was contaminated with metals released from CCA-treated wood.
Distribution of CO
produced from fossil fuel by accelerator mass spectrometry: in Daejeon
Park, Junghun ; Hong, Wan ; Park, Ji Youn ; Sung, Ki Seok ; Eum, Chul-Hun ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 9~13
We have collected a batch of leaf samples at several main crossroads in Daejeon and a background site to obtain distribution of
(greenhouse gas) due to fossil fuel combustion. The leaf samples were treated with AAA method and
values of them were measured using AMS.
values of downtown sites were found to be lower by 27-102 ‰ than that of the background site, and the ratio of
originated from fossil fuel combustion in the atmosphere of Daejeon could be calculated from the differences of
values. The average
of the background site, around Kyeryong mountain, was measured to be
‰, and this value is lower than 66.3 ‰, which have been known as the backgdound values in USA.
Development of certified reference materials for odorous aldehyde
Kim, Young-Doo ; Woo, Jin-Chun ; Bae, Hyun-Kil ; Kim, Byoung-Moon ; Lee, Byung Gil ; Heo, Gwi Suk ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 14~19
Among the many odor materials, aldehyde has bad influences not only on human nose, but also on human health. Aldehyde has a strong odor at infinitesimal level, such as down to ppt concentration. Also aldehydes are highly reactive and have poor stability. Therefore, manufacture of standard gases, analysis of aldehydes are very difficult compare to other air pollution analysis. Aldehyde CRM containing 4 different aldehydes at
(ppm) is developed by using gravimetry method according to ISO 6142 guide. The standard gases were reproduced again, and examined its reproducibility of preparation by GC-FID. The developed aldehyde CRM's certified value showed a relative expanded uncertainties of 2.11 % (95 % of confidence level, k=2).
Determination of vitamin P
by chemiluminescence method
Jin, Seung Oh ; Lee, Sang Hak ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 20~24
A chemiluminescence method has been developed to determine vitamin
in aqueous solution which is based on the enhancement of the intensity of lucigenin using lucigenin-
as chemiluminogenic system. The effects of experimental parameters such as concentrations of lucigenin, pH and concentrations of
were studied. The present method allows the determination of vitamin
over the range
. The detection limit was
. The relative standard deviation was 0.75 % for 10 determinations of
. The correlation coefficient of the working curve was 0.9984 (S/N=3).
Preparation and characterization of prospective disulfide based electrode materials for lithium batteries
Ragupathy, Dhanusuraman ; Gopalan, Anantha Iyengar ; Lee, Kwang-Pill ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 25~33
Organic disulfide compounds are having higher theoretical capacity than the conventional cathode material and are considered as the important storage material. Here, we are reporting the preparation of poly (2,2'-dithiodianiline) PDDA/multiwall carbon nanotubes, (MWCNTs) composites under different experimental conditions. Amine functionalized and unfunctionalized MWCNTs were independently used for the preparation of composites. Composites were prepared in the presence of cetyl trimethyl bromide (CTAB), a cationic surfactant, and also in the absence of CTAB. A physical mixture of PDTDA and MWCNTs was formed with unfunctionalized MWCNTs. Grafting of PDDA onto MWCNTs was performed by chemical oxidative polymerization of 2, 2'-dithiodianiline in the presence of amine functionalized MWCNTs. The composites of MWCNTs and PDTDA were characterized for structure, morphology and thermal properties through Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy, scanning electron microscopy and UV-visible spectroscopy. The composite materials prepared by this method are expected to find applications as electrode materials for lithium batteries.
Determination of lercanidipine in human plasma by LC-MS/MS
Jang, Moon-Sun ; La, Sookie ; Chang, Kyu Young ; Kang, Seung Woo ; Han, Sang Beom ; Lee, Kyung Ryul ; Lee, Hee Joo ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 34~40
Liquid chromatography-tandem mass spectrometry (LC-MS/MS) method has been developed and validated for the quantitative determination of lercanidipine in human plasma. After addition of internal standard (amlodipine), plasma was precipitated with acetonitrile and the supernatant was evaporated. The residues were dissolved in 50 % acetonitrile and analyzed by LC-MS/MS. Using MS/MS with multiple reaction monitoring(MRM) mode, lercanindipine were selectively detected without severe interference from human plasma. The standard calibration curve for lercanidipine was linear (r = 0.9994) over the concentration range 0.05-20.0 ng/mL in human plasma. The intra- and inter-day precision over the concentration range of lercanidipine was lower than 11.7 % (correlation of variance, CV), and accuracy was between 94.4-114.8 %. This method has been successfully applied to the pharmacokinetic study of lercanidipine in human plasma.
Simultaneous determination of amphetamine-like drugs in human urine by SPE and GC/MS
Cheong, Jae Chul ; Kim, Jin Young ; In, Moon Kyo ; Cheong, Won Jo ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 41~47
Although liquid-liquid extraction (LLE) method has been used routinely for the analysis of amphetamine-like drugs (amphetamine; AP, methamphetamine; MA, 3,4-methylenedioxyamphetamine; MDA, 3,4-methylenedioxymethamphetamine; MDMA, 3,4-methylenedioxyethylamphetamine; MDEA), a solid-phase extraction (SPE) method, which can be automated, was applied for the simultaneous determination by GC/MS in human urine. Urine samples (3 mL) and 0.1 M phosphate buffer (1 mL, pH 7.0) were extracted by an automated SPE system. The eluent was evaporated, derivatized with trifluoroacetic anhydride (TFAA), and analyzed by GC/MS. The calibration curves was linear with correlation coefficient (
) above 0.994 in the ranges of 34.0 (AP), 28.0 (MDA)~1000.0 ng/mL for AP, MDA, and 50.0~2000.0 ng/mL for MA, MDMA, and MDEA. The limits of detection ranged from 4.0 to 10.0 ng/mL, and the limits of quantitation ranged from 12.0 to 34.0 ng/mL. The relative recoveries were 93.5~107.7 %. The precisions and accuracies were 1.9~14.8 % and -8.7~14.8 %, respectively. The present method was successfully applied to identify the MA or Ecstasy (MDMA) abusers in exact as well as rapid.
Validation of new saliva test using SALIgAE
Lim, Si-Keun ; Kwak, Kyung-Don ; Choi, Dong-Ho ; Han, Myun-Soo ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 48~52
A new forensic saliva test method using
was evaluated in this study. The sensitivity and specificity of
were examined and compared to those of other saliva test methods such as agarose gel diffusion method and
test sheet method.
showed high sensitivity and specificity to human saliva in addition to quickness. Moreover modified
method was cheap and easy to use in crime scene and DNA laboratory.
was very stable at room temperature and had no effect on STR typing.
Analysis of ethyl carbamate in alcoholic beverages
Park, Sung-Kug ; Yoon, Taehyung ; Choi, Dongmi ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 53~57
In order to survey the contents of ethyl carbamate in alcoholic beverages, GC/MS-SIM method was used after extraction with dichloromethane in solid phase extract cartridge contained alcoholic beverages. In the applied GC/MS-SIM method, the values of recoveries and relative standard deviation were ranged from 85.2 % to 87.9 % and from 0.7 % to 1.9 %, the limit of detection and quantification were
. Depending on alcoholic beverage kinds, the levels were variable and the average level was
for fruit wine,
for other alcohol beverages, ND for soju, respectively.
Characterization of TMA-A zeolite incorporated by ZnO nanocrystals
Lee, Seok Ju ; Lim, Chang Sung ; Kim, Ik Jin ;
Analytical Science and Technology, volume 21, issue 1, 2008, Pages 58~63
Nano-sized ZnO crystals were successfully incorporated using ion exchange method in TMA-A zeolite synthesized by the hydrothermal method. The optimal composition for the synthesis of TMA-A zeolite was resulted in a solution of
: 2.2 TEOS : 2.4 TMAOH : 0.3 NaOH : 200
. 0.3 g of TMA-A zeolite and 5 mol of
solution were employed for the preparation of ZnO incorporated TMA-A zeolite. The crystallization process of ZnO incorporated TMA-A zeolite was analyzed by X-ray diffraction (XRD). The incorporated nano-sized ZnO crystals and the crystallinity of TMA-A zeolite were evaluated by transmission electron microscopy (TEM) and high resolution transmission electron microscopy (HRTEM). The size of the incorporated nano-sized ZnO crystals was 3~5 nm, while the TMA-A zeolite was 60~100 nm. The bonding structure and absorption of the ZnO incorporated TMA-A zeolite were compared with the ZnO and TMA-A zeolite by the FT-IR analysis. Subsequentlly, the ZnO incorporated TMA-A zeolite showed the photoluminescent characteristics on the wavelengths of 330~260 nm and 260~230 nm by measurement of UV spectrophotometer.