• Title, Summary, Keyword: ICP-MS

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The chemical speciation and analysis of trace elements in sediment with neutron activation analytical method(NAA) and atomic mass spectrometry (중성자 방사화분석법과 원자질량분석법을 이용한 침전물 시료속에 존재하는 미량원소들의 화학종 분류 및 분석)

  • Nam, Sang-Ho;Kim, Jae-Jin;Chung, Yong-Sam;Kim, Sun-Ha
    • Analytical Science and Technology
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    • v.16 no.5
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    • pp.358-367
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    • 2003
  • In this research, first of all, the analytical methods for the determination of major elements in sediment have been developed with ICP-MS (Inductively Coupled Plasma Mass Spectrometry). The analytical results of major elements (Al, Ca, K, Fe, Mg) with Cool ICP-MS were much better than those with normal ICP-MS. The analytical results were compared with those of NAA (Neutron Activation Analysis). NAA were a little superior to ICP-MS for the determination of major elements in sediment as a non-destructive trace analytical method. The analytical methods for the determination of minor elements (Cr, Ce, U, Co, Pb, As, Se) have been also developed with ICP-MS. The analytical results by standard calibration curve with ICP-MS were not accurate due to the matrix interferences. Thus, the internal standard method was applied, then the analytical results for minor elements with ICP-MS were greatly improved. The analytical results obtained by ICP-MS were compared with those obtained by NAA. It showed that the two analytical methods have great capabilities for the determination of minor elements in sediments. Accordingly, the NAA will play an important role in analysis of environment sample with complex matrix. ICP-MS also will play an important role because it has a great capability for the determination of Pb that could not be determined by NAA.

Applicability of CCT-ICP-MS for the Determination of Trace Elements in Airborne Particulate Matters (CCT-ICP-MS의 대기분진내 미량원소분석에 대한 적용성)

  • 임종명;이진홍;서만철
    • Journal of Korean Society for Atmospheric Environment
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    • v.20 no.3
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    • pp.397-409
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    • 2004
  • There has been few studies of either domestic or international to apply CCT-ICP-MS for the precise analysis of As and Cr components associated with airborne particulate matter. To date, the use of CCT-ICP-MS is strongly recommended for the accurate analysis of the toxic trace metals; this is because CCT-ICP-MS technique prevents polyatomic spectral interferences involved in the determination of As and/or Cr components. Taking advantage of CCT-ICP-MS technique, the measurements of about 20 metals were undertaken in this study. The standard reference material (NIST SRM 2783) was used for analytical quality control. To improve analytical accuracy and of acid efficiency, we selected nitric acid based on a test of three kinds of acid for microwave digestion method 1 ) nitric acid. 2) nitric acid and hydrogen peroxide. and 3) nitric acid and perchloric acid. When this method was employed, relative errors to SRM values of Al, As, Cr Fe, Mg, Mn, Pb, Sb, V, and Zn fell below 20%, while those or Ca, Si, and Ti were higher than 20%. The overall results of our study show that the concentrations of As and V determined by CCT-ICP-MS were satisfied with the certificated values within a relative error of 20e1c, whereas those determined by ICP-MS were 10 times higher than the certificated values.

A study on the determination of lead in whole blood by ICP/MS (ICP/MS에 의한 전혈 중 납의 분석방법 연구)

  • Park, Kyung Su;Kim, Sun Tae
    • Analytical Science and Technology
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    • v.10 no.4
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    • pp.240-245
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    • 1997
  • An accurate analysis method for the determination of lead in whole blood by ICP/MS was developed. Whole blood samples were decomposed in microwave digestion system without any contamination and loss of lead. The 96 samples were analyzed by ICP/MS using mass$^{208}$ isotope of lead. Lead concentrations of human whole blood were ranged of $2.50{\sim}22.8{\mu}g/dL$. The accuracy of this analysis method was verified by analyzing of NIST SRM 955a series(lead in blood).

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Chemical Analysis of Fly Ashes from Municipal Solid Waste Incinerators (생활폐기물 처리시설 배출 비산재의 조성분석)

  • Jang, Seong-Ki;Choi, Duk-Il;Lim, Chang-Ho;Lee, Jin-Sook
    • Analytical Science and Technology
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    • v.13 no.2
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    • pp.215-221
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    • 2000
  • Analysis of fly ashes from the MSW incinerators was carried out using XRF, ICP-MS and ICP-AES. It was found that the major elements of fly ash were Ca, K, Na, Si, Al, S, Cl and O by the XRF analysis. The XRD spectra showed that the fly ashes were mainly consisted with the chlorides, hydroxides, carbonates and also oxides of former elements. For the determination of minor elements such as Zn, Pb, Cu, Cr, and Cd, we used ICP-AES and ICP-MS after microwave digestion and the results were compared with the result of XRF.

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Characteristic Effects of Dangnyo-hwan for Diabetes Control Studied Using LC-MS/MS and ICP (LC-MS/MS 및 ICP를 이용한 당뇨환의 화학적 특성 분석)

  • In, Jeong-do;Im, Dai-sig;Moon, Seung-ho;Ki, Won-ill
    • The Journal of Internal Korean Medicine
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    • v.36 no.3
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    • pp.217-227
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    • 2015
  • Objectives: The primary aim of this study was to identify bioactive compounds in Dangnyo-hwan, a Korean herbal medicine, through instrumental analysis using LC-MS/MS and ICP, and investigate its potential use in diabetes treatment. Methods: The extract of Dangnyo-hwan has 12 medicinal herbs; these were compared with 18 marker substances selected from literature survey. Results: LC-MS/MS analysis could detect 9 of the 18 bioactive compounds: citruline, catalpol, berberine, ginsenoside Rb1, ginsenoside Rg1, oleanolic acid, β-sitosterol, mangiferin, and schizandrin. While harmful heavy metals such as As, Pb, Cd, Hg, Ni, and Cu were not present in high concentrations, Zn concentration was 4.2 mg in 100 g Dangnyo-hwan. Conclusions: Instrumental analysis such as LC-MS/MS and ICP was successfully used to identify bioactive compounds in Dangnyo-hwan. Detection of 9 bioactive substances and Zn from the herb medicine is a valuable finding, and suggests that Dangnyo-hwan is a candidate medicine for diabetes. Further investigations like in vitro assay, percent GPR 119 activity, and percent human DGAT-1 inhibition are underway.

Determination of boron in steel by HNO3-NH4HF2 digestion and ICP-MS (질산-이플루오린화암모늄 분해 및 ICP-MS에 의한 철강 중 붕소 정량에 관한 연구)

  • Choi, Won Myung;Eum, Chul Hun;Park, Ilyong
    • Analytical Science and Technology
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    • v.27 no.6
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    • pp.352-356
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    • 2014
  • Various studies have been done to improve the properties of the steel by adding boron to the steel. Some studies have reported on the analysis of the boron in steel by AAS (atomic absorption spectrometry), ICP-OES(inductively coupled plasma-optical emission spectrometry), ICP-MS (inductively coupled plasma/mass spectrometry). The volatile loss of boron of steel in sample digestion and the separation procedure for avoiding matrix effect by high concentration of iron are difficulties for determination of boron in steel. The method to determine boron in steel by ICP-MS was developed without volatilization of boron in sample digestion step with $HNO_3-NH_4HF_2$ digestion method, and the additional separation process for avoiding matrix effect. Complete decomposition of steel with $HNO_3-NH_4HF_2$ digestion method, and boron determination by ICP-MS in the matrix of high concentration of iron were possible. Quantitative recoveries of boron in certified standard steel by new method in this study were 103 to 111%, and the relative standard deviation is less than 5%. The method detection limit was $1.17{\mu}g/g$.

Comparisons of sample preparation (acid digestion and microwave digestion) and measurement (inductively coupled plasma mass spectrometry and graphite furnace atomic absorption spectrometry) in the determination of bone lead (골중납 측정의 시료 전처리 (산분해법과 마이크로웨이브 분해법)와 측정 방법 (유도결합 플라즈마 질량분석법과 흑연로 원자 흡수 분광 광도법)의 비교)

  • Yoon, Chungsik;Choi, Inja;Park, Sungkyun;Kim, Rokho
    • Analytical Science and Technology
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    • v.16 no.2
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    • pp.152-158
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    • 2003
  • This study was conducted to evaluate two sample digestion procedures and instrumental determination parameters for analysis of lead in bone. Amputated human legs were treated by acid digestion or microwave dissolution prior to spectrometric analysis. Inductively coupled plasma mass spectrometry (ICP-MS) and graphite furnace atomic absorption spectrometry (GF-AAS) were used for determining bone lead levels. Recovery efficiencies using standard reference material from acid digestion measured by ICP-MS were in good agreement with those of the certified value, but in cases of acid digestion by GF-AAS and microwave digestion by both two methods, recovery underestimated and overestimated, respectively. For the bone samples, the lead concentrations obtained by ICP-MS after acid digestionwere in good agreement with those by GF-AAS (correlation coefficient = 0.983), but GF-AAS gave systematically higher values than ICP-MS. While a good agreement between two analytical methods after microwave digestion was also obtained (correlation coefficient = 0.950), bone lead concentrations from microwave were relatively higher than those from acid digestion. In conclusion, the use of the simple nitric acid digestion procedure at an ambient temperature coupled to ICP-MS seems to be efficient for the determination of lead in bone in consideration for both the convenience and validity.

Comparison of Blood Lead Concentration Using Graphite Furnace Atomic Absorption Spectrometry (GF-AAs) and Inductively Coupled Plasma-mass Spectrometry (ICP-MS) (흑연로 원자 흡광 광도법과 유도 결합 플라즈마 질량 분석법을 이용한 혈중 납 농도 비교)

  • Kang, Min-Kyung;Kwon, Jung-Yeon;Kim, Byoung-Gwon;Lim, Hyoun-Ju;Seo, Jeong-Wook;Kim, Yu-Mi;Hong, Young-Seoub
    • Journal of Environmental Health Sciences
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    • v.45 no.3
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    • pp.258-266
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    • 2019
  • Objectives: In this study, blood lead was analyzed using graphite furnace atomic absorption spectrometry (GF-AAs) and inductively coupled plasma mass spectrometry (ICP-MS). We tried to examine the difference and consistency of the analytical values and the applicability of the analytical method. Methods: We selected 57 people who agreed to participate in this study. After confirming the linearity of the calibration standard curves in GF-AAs and ICP-MS, the concentrations of lead in quality control material and samples were measured, and the degree of agreement was compared. Results: The detection limit of the ICP-MS was lower than that of GF-AAs. The coefficient of variation of reference materials was shown to be stable in the ICP-MS and GF-AAs. When the correspondence between the two equipments was verified by bias of the analysis values, a concordance was shown, and approximately 98% of the ideal reference lines were present within ${\pm}40%$ of the deflection. Conclusion: GF-AAs showed high sensitivity to single heavy metal analysis, but it took much time and showed higher detection limit than ICP-MS. Therefore, it would be considered necessary to switch to ICP-MS analysis method, considering that the level of lead exposure is gradually decreasing.

Direct Determination of Total Arsenic and Arsenic Species by Ion Chromatography Coupled with Inductively Coupled Plasma Mass Spectrometry

  • Nam, Sang-Ho;Kim, Jae-Jin;Han, Soung-Sim
    • Bulletin of the Korean Chemical Society
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    • v.24 no.12
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    • pp.1805-1808
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    • 2003
  • The simultaneous determination of As(III), As(V), and DMA has been performed by ion chromatography (IC) coupled with inductively coupled plasma-mass spectrometry (ICP-MS). The separation of the three arsenic species was achieved by an anionic separator column (AS 7) with an isocratic elution system. The separated species were directly detected by ICP-MS as an element-selective detection method. The IC-ICP-MS technique was applied for the determination of arsenic species in a NIST SRM 1643d water sample. An As(III) only was detected in the sample. The detection limits of As(III), As(V) and DMA were 0.31, 0.45, and 2.09 ng/mL, respectively. It was also applied for the determination of arsenic species in a human urine obtained by a volunteer, and three arsenic species were identified. The determination of total As in human urines that were obtained from 25 volunteers at the different age was also carried out by ICP-MS.