New developments in food analysis by ICP‐MS

Alonso, J. Ignacio García; Marchante-Gayón, Juan Manuel; Moldován, Mariella

doi:10.1002/9781118654316.ch12

Cited by 7 publications

(5 citation statements)

References 56 publications

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“…For instance, sample preparation is the major limiting step, as proteins and phosphate constituents of dairy samples can significantly interfere with Ca absorbance. For such reason, lanthanum is often used to minimize milk phosphorus interference, while proteins must be precipitated by trifluoroacetic acid (∼24% w/v) (García Alonso et al, 2015). Another but more time-consuming option is reducing the sample to ash (e.g., 550 • C for 5 h or more) followed by dissolution in nitric acid.…”

Section: Atomic Absorption Spectroscopymentioning

confidence: 99%

Calcium: A comprehensive review on quantification, interaction with milk proteins and implications for processing of dairy products

Barone

Yazdi

Lillevang

et al. 2021

Comp Rev Food Sci Food Safe

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Calcium (Ca) is a key micronutrient of high relevance for human nutrition that also influences the texture and taste of dairy products and their processability.In bovine milk, Ca is presented in several speciation forms, such as complexed with other milk components or free as ionic calcium while being distributed between colloidal and serum phases of milk. Partitioning of Ca between these phases is highly dynamic and influenced by factors, such as temperature, ionic strength, pH, and milk composition. Processing steps used during the manufacture of dairy products, such as preconditioning, concentration, acidification, salting, cooling, and heating, all contribute to modify Ca speciation and partition, thereby influencing product functionality, product yield, and fouling of equipment. This review aims to provide a comprehensive understanding of the influence of Ca partition on dairy products properties to support the development of kinetics models to reduce product losses and develop added-value products with improved functionality. To achieve this objective, approaches to separate milk phases, analytical approaches to determine Ca partition and speciation, the role of Ca on protein-protein interactions, and their influence on processing of dairy products are discussed.

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Section: Atomic Absorption Spectroscopymentioning

confidence: 99%

Calcium: A comprehensive review on quantification, interaction with milk proteins and implications for processing of dairy products

Barone

Yazdi

Lillevang

et al. 2021

Comp Rev Food Sci Food Safe

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show abstract

“…Typically, agricultural products are analyzed in laboratory conditions by conventional elemental analysis techniques, such as inductively coupled plasma atomic emission spectrometry (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS), graphite furnace atomic absorption spectrometry (GFAAS), ame atomic absorption spectrometry (FAAS), and X-ray uorescence spectrometry (XRF). [1][2][3][4][5][6][7][8][9][10] At farm or food production line, online control should involve a few hundred analyses per day; thus compact hand-held instruments are required. Nowadays, hand-held instruments based on X-ray uorescence [11][12][13][14] and laser-induced breakdown spectroscopy (LIBS) [15][16][17][18][19] techniques are good candidates for the online control of heavy elements in plant or food materials.…”

Section: Introductionmentioning

confidence: 99%

Improving the LIBS analysis of heavy metals in heterogeneous agricultural samples utilizing large laser spotting

Lednev

Sdvizhenskii

Grishin

et al. 2022

J. Anal. At. Spectrom.

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“…Toxic elements and heavy metals in agricultural products can induce intoxication and even diseases, so express multi-elemental analysis techniques are required. Conventional laboratory techniques, such as inductively coupled plasma-atomic emission spectrometry (ICP-AES), inductively coupled plasma mass spectrometry (ICP-MS), graphite furnace atomic absorption spectrometry (GFAAS), flame atomic absorption spectrometry (FAAS), and X-ray fluorescence spectrometry (XRF) have been successfully adopted for food and agricultural products [1][2][3][4][5][6][7]. All the abovementioned techniques require laboratory conditions, are time-consuming, and need sample preparation.…”

Section: Introductionmentioning

confidence: 99%

Improving Calibration Strategy for LIBS Heavy Metals Analysis in Agriculture Applications

et al. 2021

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A new calibration procedure, known as mapping conditional-calibration laser-induced breakdown spectroscopy (LIBS), has been suggested to improve analysis results for heterogeneous samples. The procedure is based on LIBS elemental mapping, followed by signal conditioning in every sampling spot to skip signal outliers, then by finalizing the calibration curve construction. The suggested mapping conditional calibration procedure was verified for zinc analysis in soybean grist samples. The laser parameters correspond to those of the hand-held LIBS instrument in order to estimate the influence of sample surface heterogeneity under on-site analysis conditions. The laser spot (60 μm) was equal to or smaller than the typical size of grist particles (40–500 μm) but laser crater dimensions were significantly greater and varied widely (150–450 μm). The LIBS mapping of different spectral signals (atomic and ionic lines for major and minor components) was achieved. Elemental maps were normalized to achieve signal maps that were conditionally spotted to skip signal outliers. It was demonstrated that the suggested mapping conditional-calibration LIBS provided 15 ppm RMSECV for zinc determination in heterogeneous samples, which is typical for agricultural products.

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New developments in food analysis by ICP‐MS

Cited by 7 publications

References 56 publications

Calcium: A comprehensive review on quantification, interaction with milk proteins and implications for processing of dairy products

Calcium: A comprehensive review on quantification, interaction with milk proteins and implications for processing of dairy products

Improving the LIBS analysis of heavy metals in heterogeneous agricultural samples utilizing large laser spotting

Improving Calibration Strategy for LIBS Heavy Metals Analysis in Agriculture Applications

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