Determination of inorganic nutrients in wheat flour by laser-induced breakdown spectroscopy and energy dispersive X-ray fluorescence spectrometry

Peruchi, Lidiane C; Nunes, Lidiane Cristina; Carvalho, Gabriel Gustinelli Arantes de; Guerra, Marcelo Braga Bueno; Almeida, Eduardo de; Rufini, Iolanda Aparecida; Santos, Dário; Krug, Francisco José

doi:10.1016/j.sab.2014.08.025

Cited by 57 publications

(27 citation statements)

References 47 publications

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“…A set of soybean samples was also analyzed by inductively coupled plasma optical emission (ICP-OES) [32], while another set was analyzed using also the spiked recovery tests and results are shown in Tables 3 and 4.…”

Section: Resultsmentioning

confidence: 99%

A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

Santos

Reis

2017

Journal of Analytical Methods in Chemistry

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A highly sensitive analytical procedure for photometric determination of molybdenum in plant materials was developed and validated. This procedure is based on the reaction of Mo(V) with thiocyanate ions (SCN−) in acidic medium to form a compound that can be monitored at 474 nm and was implemented employing a multicommuted flow analysis setup. Photometric detection was performed using an LED-based photometer coupled to a flow cell with a long optical path length (200 mm) to achieve high sensitivity, allowing Mo(V) determination at a level of μg L−1 without the use of an organic solvent extraction step. After optimization of operational conditions, samples of digested plant materials were analyzed employing the proposed procedure. The accuracy was assessed by comparing the obtained results with those of a reference method, with an agreement observed at 95% confidence level. In addition, a detection limit of 9.1 μg L−1, a linear response (r = 0.9969) over the concentration range of 50–500 μg L−1, generation of only 3.75 mL of waste per determination, and a sampling rate of 51 determinations per hour were achieved.

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Section: Resultsmentioning

confidence: 99%

A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

Santos

Reis

2017

Journal of Analytical Methods in Chemistry

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“…51 A proporção em massa de aglutinante/amostra no preparo das pastilhas pode variar entre 10 e 50%, e essa variação depende de fatores como propriedades da amostra e da resistência mecânica das pastilhas. 40 No trabalho proposto por Peruchi et al 52 os autores analisaram farinha de trigo, no entanto, as pastilhas não apresentavam boa coesão, sendo necessário o uso de um aglutinante. Os autores testaram três tipos de aglutinantes em três diferentes proporções, e os melhores resultados foram obtidos com 30% m m -1 de celulose.…”

Section: Preparo De Amostrasunclassified

“…81,132,205,[208][209][210] Nesse sentido, Ferreira et al 211 determinaram Ca em amostras de cereais matinais. Peruchi et al 52 analisaram amostras de farinhas de trigo pastilhadas para a determinação de Ca, Cu, Fe, K, Mg, Mn, P, S e Zn utilizando LIBS e espectrometria de fluorescência de raios X por energia dispersiva. Em outro estudo, Bilge et al 212 determinaram Na em biscoitos e diferentes tipos de pães.…”

Section: Alimentosunclassified

Laser Induced-Breakdown Spectroscopy (Libs): Histórico, Fundamentos, Aplicações E Potencialidades

Costa¹,

Augusto²,

Castro³

et al. 2019

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This review attempts to present a broad view of the technique laser-induced breakdown spectroscopy (LIBS), since its origin, fundamentals, sample preparation strategies, use of chemometric tools for data processing, the advantages and limitations with regard to qualitative and quantitative analysis, aplications and future trends as an analytical technique that is in consolidation in analytical chemistry. LIBS is a rapid and versatile, which is able of providing qualitative and quantitative analytical information for practically any sample, in a virtually non-destructive way, without any substantial sample preparation. The instrumentation is simple, robust, compact, and enables remote analysis. The advancement of the LIBS applications in the areas of agriculture, environmental, food, biological/pharmaceutical, forensic, metallurgy and electronic waste were discussed in detail in this review. We consider that this review will be an important tool concerning dissemination of the LIBS, mainly for audience of undergraduate courses, and disciplines related to instrumental analysis.

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“…Laser-induced breakdown spectroscopy (LIBS) stimulated strongly growing interest in the past years due to the capability of performing rapid multielemental analyses without or with minimized sample preparation [4,5]. Thus, the analytical capabilities of LIBS were investigated for various types of food such as wheat [6,7], cereals [8,9], vegetables [10,11], milk powder [12,13], and oil [14]. The presented approaches * Corresponding author: hermann@lp3.univ-mrs.fr that aim to quantify the elemental composition can be divided into three categories: (i) measurements based on calibration with standard samples; (ii) chemometric methods; (iii) calibration-free measurements.…”

Section: Introductionmentioning

confidence: 99%

Two-step procedure for trace element analysis in food via calibration-free laser-induced breakdown spectroscopy

Chen

Bănaru

Sarnet

et al. 2018

Spectrochimica Acta Part B: Atomic Spectroscopy

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Determination of inorganic nutrients in wheat flour by laser-induced breakdown spectroscopy and energy dispersive X-ray fluorescence spectrometry

Cited by 57 publications

References 47 publications

A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

A Highly Sensitive Multicommuted Flow Analysis Procedure for Photometric Determination of Molybdenum in Plant Materials without a Solvent Extraction Step

Laser Induced-Breakdown Spectroscopy (Libs): Histórico, Fundamentos, Aplicações E Potencialidades

Two-step procedure for trace element analysis in food via calibration-free laser-induced breakdown spectroscopy

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