New horizons in human biomonitoring of environmentally and occupationally relevant metals—sector-field ICP-MS versus electrothermal AAS

Begerow, Jutta; Turfeld, Martina; Dunemann, Lothar

doi:10.1039/a909056h

Cited by 62 publications

(39 citation statements)

References 17 publications

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“…A pyrolysis temperature of 1,200°C was found to be optimal, while 2,100°C and 2,200 o C were found to be optimal atomizing temperatures for Ni ETAAS determination in serum and urine respectively. Detection limits achieved by the proposed procedure are close to the detection limits obtained by sector-field mass spectrometry with inductive coupled plasma [20]. The obtained values for concentration of Ni in serum and urine from healthy volunteers and from occupationally exposed electroplating workers and patients on dialysis are in agreement with the literature data.…”

Section: Application Of the Methodssupporting

confidence: 87%

ETAAS determination of nickel in serum and urine

2002

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Methods for the direct determination of Ni in human blood serum and urine by electrothermal atomic absorption spectrometry (ETAAS) are described. Hydrogen peroxide was proposed as matrix modifier, assisting thermal decomposition of proteins during the ashing step. A pyrolysis temperature of 1,200 degrees C was found to be optimal while 2,100 degrees C and 2,200 degrees C were found to be optimal atomizing temperatures for Ni in serum and urine respectively. Calibration was performed by using a calibration curve prepared with aqueous standard solutions of Ni (glycine must be used as modifier for Ni in aqueous solutions). The limits of detection, defined as the blank values plus 3 times the standard deviation of the blank values, were 0.2 microg/L for both serum and urine samples. Relative standard deviations for serum samples with concentrations of Ni in the range 0.5-2 microg/L were 10-15% and for urine samples with Ni concentrations in the range 0.5-2.5 microg/L were 8-10%.

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Section: Application Of the Methodssupporting

confidence: 87%

ETAAS determination of nickel in serum and urine

2002

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“…Wall atomization, H 2 O 2 as modifier and standard addition method for calibration are recommended. Detection limits achieved by the proposed procedure are very close to the detection limits obtained by the SF ICP-MS [26,27].…”

Section: Discussionsupporting

confidence: 73%

On chromium direct ETAAS determination in serum and urine

et al. 2007

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A simple, accurate and reliable method for direct electrothermal atomic absorption spectrometric (ETAAS) determination of chromium in serum and urine samples without any preliminary sample pretreatment is described. Instrumental parameters are optimized in order to define: the most suitable atomizer, optimal temperature program and efficient modifier. An appropriate quantification method is proposed taking into account a matrix interference study. Pyrocoated graphite tubes and wall atomization, pretreatment temperature of 700• C, atomization temperature of 2600 • C, hydrogen peroxide as modifier and standard addition calibration are recommended. The accuracy of the method proposed for Cr determination in serum and urine was confirmed by comparative analysis of parallel samples after wet or dry ashing as well as by the analysis of two certified reference materials: Serum, Clin Rep 1 and Lypochek Urine, level 1. The detection and determination limits achieved for both matrices are 0.08 µg/L and 0.15 µg/ L respectively. The relative standard deviation varied between 15 and 18 % for the chromium content in the samples in the range 0.08-0.2 µg/L and between 4 and 7 % for the chromium content in the range 0.2-2.0 µg /L for both matrices.

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“…Thus, this technique has gained popularity recently for the determination of trace elements and/or their isotope ratios in biological fluids. [6][7][8][9][10][11][12][13][14] Detection limits in the range 12 to 100 pg ml 21 for V in biological fluids have been reported using HR-ICP-MS. 9,10,12,14 In 2001, ThermoFinnigan released software, version 2.1, highlighting new mass offset and lock mass features, which permit correction for mass shift (due to hysteresis within the magnet material) and mass drift (due mostly to thermal effects) previously observed with both their Element 1 and Element 2 HR-ICP-MS insturments. These improvements not only eliminate the need for repeat mass calibrations during daily operation, especially at medium and high resolution, but also provide more stable instrument performance, resulting an improved accuracy and precision of analytical results.…”

Section: Introductionmentioning

confidence: 99%

Determination of vanadium in biological fluids using HR-ICP-MS

Yang

Sturgeon

Prince³

et al. 2002

J. Anal. At. Spectrom.

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Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Determination of vanadium in biological fluids using HR-ICP-MS NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8899905&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=8899905&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1039/b207563fJournal of Analytical Atomic Spectrometry, 17, 10, pp. 1300Spectrometry, 17, 10, pp. -1303Spectrometry, 17, 10, pp. , 2002 Determination of vanadium in biological fluids using HR-ICP-MS A simple, fast and sensitive method is described for the determination of vanadium in biological fluids using high resolution inductively coupled plasma mass spectrometry (HR-ICP-MS). Samples were diluted 20-fold in 0.3% HNO 3 . Spectral interference from 35 Cl 16 O 1 , present in urine or serum matrices, was completely resolved from the vanadium major isotope of 51 V 1 at medium resolution of 4000. Quantitation of V in urine and serum was achieved by the method of additions using standards prepared in a pooled urine or serum sample. Mass offset and lock mass ( 40 Ar 16 O 1 ) options were employed for more accurate and precise results. Better than 2.0% RSD was obtained with a 200 pg ml 21 V spike added to a 20-fold diluted urine or serum matrix, reflecting one day stability. Vanadium concentrations in the range of v10 to 1500 pg ml 21 and v10 to 760 pg ml 21 were determined in the urine and serum samples, respectively. Good day-to-day precision of less than 4.0% RSD was typical for both sample matrices. Spike recoveries of 99 ¡ 2 and 98 ¡ 3% (one standard deviation, n~3) were obtained in the urine and serum, respectively. An in-house CRM (SLRS-4: river water) was analyzed daily, yielding a V concentration of 0.337 ¡ 0.010 ng ml 21 (one standard deviati...

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New horizons in human biomonitoring of environmentally and occupationally relevant metals—sector-field ICP-MS versus electrothermal AAS

Cited by 62 publications

References 17 publications

ETAAS determination of nickel in serum and urine

ETAAS determination of nickel in serum and urine

On chromium direct ETAAS determination in serum and urine

Determination of vanadium in biological fluids using HR-ICP-MS

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