2016
DOI: 10.5935/0103-5053.20160092
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Method Development and Total Uncertainty Estimation for Boron, Sulfur and Phosphorus Determination in Mineral Fertilizer Using ICP OES

Abstract: This study deals with B, S, and P determination in mineral fertilizer and S in commercial sulfur-formulation using inductively coupled plasma optical emission spectrometry. According to multivariate optimization using a Doehlert matrix, the analytes extraction in fertlizer can be conducted in open flask and heating on hot plate or in closed flask in microwave oven. However, when S is present in its elemental form in the fertilizer, the sample must be decomposed in closed flask in microwave oven for accurate S … Show more

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Cited by 4 publications
(4 citation statements)
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“…Table A1-1 with the specified wavelength of 213.618 nm used to analyze P within all samples based on literature articles (DeOliveira et al, 2016;Michalos & Rouff, 2015;Viso & Zachariadis, 2018).2.3 Method Evaluation, Calibration, Validation, Data Quality Assurance and Quality Control Evaluation and validation were performed to assess its usefulness, reproducibility, and accuracy before sample analysis. All sample preparation and deterministic methods were evaluated using working standards produced from a 1000 µg P g -1 of the stock standard solution generated from disodium phosphate (Sigma Aldrich) dissolved in ultrapure water.…”
mentioning
confidence: 99%
“…Table A1-1 with the specified wavelength of 213.618 nm used to analyze P within all samples based on literature articles (DeOliveira et al, 2016;Michalos & Rouff, 2015;Viso & Zachariadis, 2018).2.3 Method Evaluation, Calibration, Validation, Data Quality Assurance and Quality Control Evaluation and validation were performed to assess its usefulness, reproducibility, and accuracy before sample analysis. All sample preparation and deterministic methods were evaluated using working standards produced from a 1000 µg P g -1 of the stock standard solution generated from disodium phosphate (Sigma Aldrich) dissolved in ultrapure water.…”
mentioning
confidence: 99%
“…O aquecimento por micro-ondas em frascos fechados é um modo de obter altas temperaturas em um curto espaço de tempo (Kane et al, 2006;Mackey et al, 2007;Shirisha et al, 2014;Webb et al, 2014), que melhora a eficiência da digestão e possibilita o uso de ácidos diluídos. O ácido nítrico diluído combinado com peróxido de hidrogênio na digestão assistida por radiação microondas foi também proposto para as determinações de As (Machado, Pereira-Filho, et al, 2016;Machado, Virgilio, et al, 2016) e B, P e S (Oliveira et al, 2016) (Bizzi et al, 2014). Além disso, o uso de ácido diluído para a decomposição da amostra é uma boa estratégia para minimizar o consumo de reagentes, geração de resíduos e valores dos brancos analíticos (Nóbrega et al, 2012;Bizzi et al, 2014;Machado, Pereira-Filho, et al, 2016;Machado, Virgilio, et al, 2016;Oliveira et al, 2016).…”
Section: Introductionunclassified
“…O ácido nítrico diluído combinado com peróxido de hidrogênio na digestão assistida por radiação microondas foi também proposto para as determinações de As (Machado, Pereira-Filho, et al, 2016;Machado, Virgilio, et al, 2016) e B, P e S (Oliveira et al, 2016) (Bizzi et al, 2014). Além disso, o uso de ácido diluído para a decomposição da amostra é uma boa estratégia para minimizar o consumo de reagentes, geração de resíduos e valores dos brancos analíticos (Nóbrega et al, 2012;Bizzi et al, 2014;Machado, Pereira-Filho, et al, 2016;Machado, Virgilio, et al, 2016;Oliveira et al, 2016). No entanto, em alguns casos, essa abordagem pode ser limitada devido à perda de eficiência na decomposição da matriz de amostra (Nóbrega et al, 2012).…”
Section: Introductionunclassified
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