Contributions on the Use of Bismuth as Internal Standard for Lead Determinations Using ICP-Based Techniques

Bechlin, Marcos André; Ferreira, E.; Neto, José Anchieta Gomes; Ramos, Juliano Carvalho; Borges, Daniel L. G.

doi:10.5935/0103-5053.20150165

Cited by 4 publications

(4 citation statements)

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“…Bismuth ( 209 Bi) has also been used as an internal standard for high mass analytes such as lead ( 208 Pb), for which it has a similar ionisation potential. 40,41 However, the authors recommend against this as bismuth is still used in some medications such as bismuth subsalicylate (an aspirin derivative sold under the brand names Pepto-Bismol® and Kaopectate®) and ranitidine bismuth citrate (brand name Tritec®). Patients taking these medications may have an elevated level of bismuth in their blood; therefore if bismuth is used as an internal standard for ICP-MS, falsely low analyte concentrations may be reported.…”

Section: Common Internal Standards and Other Analytical Issuesmentioning

confidence: 99%

Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects

Wilschefski

Baxter

2019

CBR

399

169

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Inductively coupled plasma mass spectrometry (ICP-MS) is an analytical technique that can be used to measure elements at trace levels in biological fluids. Although older techniques such as atomic absorption and atomic emission are still in use by some laboratories, there has been a slow shift toward ICP-MS, particularly in the last decade. As this shift is likely to continue, clinical scientists should be aware of the analytical aspects of ICP-MS, as well as the potential for both spectroscopic and non-spectroscopic interference, and strategies that can be employed to eliminate or mitigate these issues.

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Section: Common Internal Standards and Other Analytical Issuesmentioning

confidence: 99%

Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects

Wilschefski

Baxter

2019

CBR

399

169

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“…Among these, internal standardization, which consists in normalizing the analyte signal by the signal of an internal standard (IS), is a well known methodology used to minimize fluctuations in spectroscopic techniques including LIBS [21][22][23][24]. To perform internal standardization, the IS concentration must be known and nearly constant [25,26]. However, in some cases it is difficult to select an adequate IS in LIBS analysis because the IS may be subject to temporal processes different from those experienced by the analyte in the plasma.…”

Section: Introductionmentioning

confidence: 99%

Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard

Morais

Barros

Júnior

et al. 2017

Microchemical Journal

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Biochar has gained agricultural importance as a soil amendment because of its important agricultural properties such as water retention, plant nutrient supplier, promoter of microorganism growth, sequestration action of atmospheric CO 2 , etc. Further, it is a low cost material being produced by recycling. Due to its active sites, biochar can adsorb nutrients so acting as a soil fertilizer. Thus the rapid assessment of nutrients in these materials is essential to ensure quality control for agricultural purposes. This work aimed to develop a simple analytical method based on Laser-Induced Breakdown Spectroscopy (LIBS) to determine Ca in biochar-based fertilizers. In particular, biochar samples enriched with Ca were prepared from peanut shells, residues of eucalyptus and banana fibers. The calibration standards were prepared by matrix matching using a biochar from eucalyptus residues. Different spectral preprocessing were evaluated to enhance the precision and accuracy of the method. However, the matrix effects demanded the use of internal standardization as the appropriate methodology to obtain the best accuracy. A linear correlation coefficient of 0.989 and a linear work range of 1.51-11.23% Ca were obtained using the proposed method, which yielded limits of detection and quantification of 0.45% e 1.51%, respectively. Calcium contents determined by LIBS in biochar-based fertilizers were in good agreement (paired t-test at 95% confidence level) with those determined by using High-Resolution Continuous Source Atomic Absorption Spectrometry (HR-CS FAAS) as the reference technique. Thus, the importance of internal standardization was demonstrated to be successful for the quantitative analysis of Ca in complex matrices like biochar-based fertilizers.

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“…Bechlin et al ( 2015 ) proposed Bi as a universal IS species for Pb determination. They demonstrated the efficiency of using the Pb/Bi pair in IS calibration for analyzing 34 assorted samples (household cleaning solutions, colored sugars, hard candies, mouthwash, orange, lemon, and grape juices, energy drink, tea, soft drinks, beer, vodka, sugar cane spirit, mineral water, vinegar, ethanol fuels, peanut, polyethylene terephthalate (PET) bottles, Maytenus ilicifolia, Peumus boldus, liquid fertilizer, solid fertilizer, shampoo and milk) by ICP OES, ICP-MS and ETV-ICP-MS.…”

Section: Traditional Calibration Methodsmentioning

confidence: 99%

Traditional Calibration Methods in Atomic Spectrometry and New Calibration Strategies for Inductively Coupled Plasma Mass Spectrometry

Carter¹,

Barros²,

Nóbrega³

et al. 2018

Front. Chem.

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Contributions on the Use of Bismuth as Internal Standard for Lead Determinations Using ICP-Based Techniques

Cited by 4 publications

References 0 publications

Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects

Inductively Coupled Plasma Mass Spectrometry: Introduction to Analytical Aspects

Calcium determination in biochar-based fertilizers by laser-induced breakdown spectroscopy using sodium as internal standard

Traditional Calibration Methods in Atomic Spectrometry and New Calibration Strategies for Inductively Coupled Plasma Mass Spectrometry

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