Determination of cadmium in sediment reference materials by isotope dilution inductively coupled plasma mass spectrometry with correction of tin isobaric interference using mass bias equations

Park, Chang J.; Cho, Kyung H.; Suh, Jung Ki; Han, Myung Sub

doi:10.1039/b000300j

Cited by 26 publications

(3 citation statements)

References 14 publications

(12 reference statements)

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“…This issue and its avoidance or correction is no IDMS specific problem and has been discussed in the literature [53][54][55]. The appearance of isobaric interferences with low ion intensities compared to the analyte element can be corrected easily in IDMS by mathematical models as it is shown for Sninterferences on Cd [56][57]. Here mass discrimination effects have to be considered, when correcting the observed ion intensities of the analyte (Cd) with the observed ion intensities of the interference (Sn) multiplied with IUPAC data.…”

Section: Sources Of Bias or Errormentioning

confidence: 99%

Isotope dilution mass spectrometry — A primary method of measurement and its role for RM certification

Vogl

Pritzkow

2010

MAPAN

116

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This article describes the application of isotope dilution mass spectrometry (IDMS) to the field of reference material (RM) characterisation focusing on the approach, which is applied by the IDMS group at BAM. Emphasis is placed on IDMS measurements of highest analytical quality. Basic principles as well as the equation system are being recalled. Different calibration strategies, such as single, double or triple IDMS, are critically reviewed and the achievable uncertainties are discussed. Differences in the application of thermal ionization mass spectrometry (TIMS) and inductively coupled plasma mass spectrometry (ICPMS) are discussed as well as differences between different types of mass spectrometers such as single collector versus multi-collector or quadrupole versus magnetic sector instruments. Possible sources of errors and bias are mentioned and correction models introduced and applied within the past years are discussed. Several examples for RM characterisations in the field of elemental analysis are shown, each demonstrating excellent analytical quality. In general it can be stated that IDMS is the most important reference method for elemental analysis, offering highest accuracy and precision or smallest measurement uncertainties, when properly applied. Thus IDMS represents by far the best suited reference method for RM characterisation. Due to its universal applicability IDMS offers sufficient potential to follow future needs in analytical chemistry as well as in the RM sector.

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Section: Sources Of Bias or Errormentioning

confidence: 99%

Isotope dilution mass spectrometry — A primary method of measurement and its role for RM certification

Vogl

Pritzkow

2010

MAPAN

116

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“…The increase of heavy metals levels in the environment over the last few decades have been reported by some authors [1][2][3][4].…”

Section: Introductionmentioning

confidence: 96%

Method development for the determination of cadmium, copper, lead, selenium and thallium in sediments by slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry and isotopic dilution calibration

Dias

Miranda

Saint’Pierre

et al. 2005

Spectrochimica Acta Part B: Atomic Spectroscopy

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“…Several correction and separation methods have been proposed including mathematical correction, 11,12) ion exchange separation, 13,14) and the coprecipitation technique. 15) In the case of low Cd concentrations, the mathematical correction methods are unsuitable because the error of the interference correction may become large.…”

Section: Introductionmentioning

confidence: 99%

Determination of Labile Cadmium in Agricultural Soils by Isotope Dilution Plasma Mass Spectrometry and a Coprecipitation Separation Technique

Kawasaki

Yada

2008

Journal of Nuclear Science and Technology

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Isotope dilution techniques were examined in order to determine the E-value (isotopically exchangeable pool or labile pool) of cadmium (Cd) in uncontaminated soil. In order to avoid spectral interference, coprecipitation separation was applied before taking inductively coupled plasma mass spectrometry (ICP-MS) measurements. An enriched 113 Cd solution was added to a soil suspension (15 g of soil and 150 mL of water) and then a 2 mL aliquot of it was sampled and filtered immediately at different exchange times. By addition of a sodium hydroxide solution to the filtered solution, Cd coprecipitated with major constituents in the filtered solution, such as iron and magnesium. After the supernatant was discarded, the precipitate was dissolved by adding 1.5 mL of 0.2 mol/L nitric acid. After this treatment, the 113 Cd/ 114 Cd ratio in the soil solution could be measured with high precision, within RSD 5%. The correction of mass bias was not required. The proportion of E-values to total Cd concentration in the soil samples ranged between 50 and 60%. These results indicate that the E-value of Cd in uncontaminated soil can be measured by using both coprecipitation separation and isotope dilution ICP-MS.

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Determination of cadmium in sediment reference materials by isotope dilution inductively coupled plasma mass spectrometry with correction of tin isobaric interference using mass bias equations

Cited by 26 publications

References 14 publications

Isotope dilution mass spectrometry — A primary method of measurement and its role for RM certification

Isotope dilution mass spectrometry — A primary method of measurement and its role for RM certification

Method development for the determination of cadmium, copper, lead, selenium and thallium in sediments by slurry sampling electrothermal vaporization inductively coupled plasma mass spectrometry and isotopic dilution calibration

Determination of Labile Cadmium in Agricultural Soils by Isotope Dilution Plasma Mass Spectrometry and a Coprecipitation Separation Technique

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