Determination of Zn in Dry Feeds for Cats and Dogs by Energy-Dispersive X-Ray Fluorescence Spectrometry

Ávila, Dayara Virgínia Lino; Souza, Sidnei O.; Costa, Silvânio Silvério Lopes da; Araújo, Rennan Geovanny Oliveira; Garcia, Carlos Alexandre Borges; Alves, José do Patrocínio Hora; Passos, Elisangela Andrade

doi:10.5740/jaoacint.16-0105

Cited by 3 publications

(4 citation statements)

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“…The measurement uncertainty SD(u) provides the data confidence and the ultimate assessment of ED‐XRF capability. The complicated and lengthy bottom‐up approach of measurement uncertainty estimation from Eurachem could be replaced by the simplified one previously used based on the combination of combining precision and trueness using repeatability. Relative uncertainties are calculated using the following formula:

RSD ((), u) ED - XRF = \sqrt{CV ((), r) ED - {XRF}^{2} + RSD ((), differences) ED - {XRF}^{2} .}

…”

Section: Resultsmentioning

confidence: 99%

“…The sample preparation is similar to those used in previous studies . Pellets (32‐mm diameter) were prepared using 6 g +/−0.1 g of homogenized powder pressed with under 10 to 17 tons, using a benchtop electro hydraulic press (max.…”

Section: Methodsmentioning

confidence: 99%

“…The technique of X‐ray fluorescence analysis (XRF) has been previously shown as fit for purpose for elemental analysis of a wide range of organic and inorganic samples. Although initial applications for the technique were predominately in geology, mining, and manufacturing, Energy dispersive‐X‐ray fluorescence (ED‐XRF) is now a well spread in food industry for easy and rapid measurement of major elements and/or trace elements in many different matrices such as infant cereals, milk based powders, cocoa powder drinks, cheese, pet food, and rice . Contrary to reference methods like atomic absorption spectrophotometry (AAS) and inductively coupled plasma‐atomic emission spectrometry (ICP‐AES), ED‐XRF technique is not destructive.…”

Section: Introductionmentioning

confidence: 99%

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Rapid analysis of Na, Mg, Ca, Fe, and Zn in breakfast cereals (granola type) by energy dispersive‐X‐ray fluorescence

Perring

Cotard

Sayadi³

et al. 2018

X-Ray Spectrometry

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Energy dispersive‐X‐ray fluorescence (ED‐XRF) is a well spread near‐line analytical technique, suitable for easy and rapid measurement of major elements and/or trace elements especially in many different food matrices. This study demonstrates the fitness for purpose of this method to ensure the correct addition of minerals during breakfast cereal production. Indeed, variations in process and in raw material compositions may lead to values out of legal tolerance, and thus quality controls need to be regularly performed to meet the release compliance criteria. Using such analytical technique close to production lines can allow controls that are more systematic as well as avoiding the shipment of numerous samples for reference method analyses often done to external laboratories. Thus, ED‐XRF allows to ensure finished products compliance with product declarations. A commercial ED‐XRF device was used during this study. Within 7 min of analytical time for two replicates/sample, the developed method gave accurate results for the quantification of Na, Mg, Ca, Fe, and Zn in breakfast cereals without any proportional biases between ED‐XRF and reference method (inductively coupled plasma‐atomic emission spectrometry) results.

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RSD ((), u) ED - XRF = \sqrt{CV ((), r) ED - {XRF}^{2} + RSD ((), differences) ED - {XRF}^{2} .}

…”

Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rapid analysis of Na, Mg, Ca, Fe, and Zn in breakfast cereals (granola type) by energy dispersive‐X‐ray fluorescence

Perring

Cotard

Sayadi³

et al. 2018

X-Ray Spectrometry

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“…Although zinc content of ingredients is available in feed tables, several factors can influence the accuracy of those estimations, being advisable to routinely analyze the content of zinc in raw ingredients. However, that is still not current practice, probably because the analytical techniques require expertise and sophisticated equipment, which inevitably translates into high costs [84].…”

Section: Variation Of Zinc Content In Raw Ingredientsmentioning

confidence: 99%

Zinc in Dog Nutrition, Health and Disease: A Review

Pereira

Maia

Fonseca

et al. 2021

Animals

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Zinc is an essential trace element, required for enzymatic, structural, and regulatory functions. As body reserves are scarce, an adequate zinc status relies on proper dietary supply and efficient homeostasis. Several biomarkers have been proposed that enable the detection of poor zinc status, but more sensitive and specific ones are needed to detect marginal deficiencies. The zinc content of commercial dry dog foods has great variability, with a more frequent non-compliance with the maximum authorized limit than with the nutritional requirement. The bioavailability of dietary zinc also plays a crucial role in ensuring an adequate zinc status. Despite controversial results, organic zinc sources have been considered more bioavailable than inorganic sources, albeit the zinc source effect is more evident after a restriction period of dietary zinc. Many disorders have been associated with inadequate zinc status, not being clear whether the occurrence of the disease is the consequence or the cause. This review presents data on zinc requirements and biomarkers for zinc status, that can be applied for the development of supplementation strategies of zinc in complete pet foods. Moreover, it provides an understanding of the role zinc plays in the health of dogs, and how altered zinc status affects diseases in dogs.

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Analytical capabilities of Energy Dispersive X-Ray Fluorescence for the direct quantification of iron in cocoa powder and powdered cocoa drink

Andrey

Dufrier

Perring

2018

Spectrochimica Acta Part B: Atomic Spectroscopy

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Determination of Zn in Dry Feeds for Cats and Dogs by Energy-Dispersive X-Ray Fluorescence Spectrometry

Cited by 3 publications

References 0 publications

Rapid analysis of Na, Mg, Ca, Fe, and Zn in breakfast cereals (granola type) by energy dispersive‐X‐ray fluorescence

Rapid analysis of Na, Mg, Ca, Fe, and Zn in breakfast cereals (granola type) by energy dispersive‐X‐ray fluorescence

Zinc in Dog Nutrition, Health and Disease: A Review

Analytical capabilities of Energy Dispersive X-Ray Fluorescence for the direct quantification of iron in cocoa powder and powdered cocoa drink

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