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Ncube N, Thatyana M, Tancu Y, Mketo N. Quantitative analysis and health risk assessment of selected heavy metals in pet food samples using ultrasound assisted hydrogen peroxide extraction followed by ICP-OES analysis. Food Chem Toxicol 2024; 192:114915. [PMID: 39127121 DOI: 10.1016/j.fct.2024.114915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Revised: 08/04/2024] [Accepted: 08/07/2024] [Indexed: 08/12/2024]
Abstract
There is a lack of information regarding the presence of heavy metals in feed ingredients for animals. Therefore, this study examines 10 feed samples collected from commercial pet food in South African market. The optimal working parameters for ultrasound assisted hydrogen peroxide extraction (UA-HPE) confirmed by multivariate optimization were sonication temperature at 80 °C for 60 min, sample mass of 0.1 g, and H2O2 concentration of 5 mol/L. The UA-HPE results demonstrated high accuracy of (>95%), reproducibility (≤1.9%), low method of detection limits (0.3498 and 0.49 μg/g), and strong linearity as confirmed by regression analysis. The environmental friendliness of the UA-HPE method was assessed using AGREEPrep metric tool that resulted with a score of 0.74. The concentration levels of Cd, Pb and As, ranged between 0.86 and 11.34, 4.50-11.45, and 2.61-12.5 μg/g, respectively greater than the standardized limits, whilst Cr, and Sn were below the limits of detection in all pet food. The health index calculations (HI > 1) revealed that the cat, dog, and horse feed pose health risk for animal consumption. Consequently, this study demonstrated a green, efficient, and cost-effective method for the analysis of animal feed with high accuracy.
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Affiliation(s)
- Nomatter Ncube
- Department of Chemistry, College of Science, Engineering and Technology, Florida Science Campus, University of South Africa, Roodepoort, 1710, Johannesburg, South Africa
| | - Maxwell Thatyana
- Department of Chemistry, College of Science, Engineering and Technology, Florida Science Campus, University of South Africa, Roodepoort, 1710, Johannesburg, South Africa
| | - Yolanda Tancu
- Water Centre, Council for Scientific and Industrial Research (CSIR), Pretoria, 0001, South Africa
| | - Nomvano Mketo
- Department of Chemistry, College of Science, Engineering and Technology, Florida Science Campus, University of South Africa, Roodepoort, 1710, Johannesburg, South Africa.
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Bahia PVB, Nascimento MM, da Rocha GO, de Andrade JB, Machado ME. Quantification of polycyclic aromatic sulfur heterocycles in fine airborne urban particles (PM 2.5) after multivariate optimization of a green procedure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 898:165465. [PMID: 37451461 DOI: 10.1016/j.scitotenv.2023.165465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 06/15/2023] [Accepted: 07/09/2023] [Indexed: 07/18/2023]
Abstract
Polycyclic aromatic sulfur heterocycles (PASHs), such as benzothiophenes (BT), dibenzothiophenes (DBT) and benzonapthothiophenes (BNT), can be emitted from vehicular traffic and deposited in fine particles matter (PM2.5). The presence of these compounds in PM2.5 is an environmental concern due to air pollution and its toxic properties. In this study, a green microscale solid-liquid extraction method was developed to determine twenty-three PASHs in PM2.5. A simplex-centroid mixture design was applied to optimize the extraction solvent. A full factorial design was used for preliminary evaluation of the factors that influence the extraction process (extraction time, sample size, and solvent volume) and then a Doehlert design for the significant parameters. The optimal extraction conditions based on the experimental design were: sample size, 4.15 cm2; 450 μL of toluene:dichloromethane (80:20,v/v); and extraction duration, 24 min. High sensitivity (LOD < 0.66pg m-3 and LOQ < 2.21 pg m-3) and acceptable recovery (82.8-120 %), and precision (RSD 3.6-14.0 %) were obtained. The greenness of the method was demonstrated using the Analytical GREEnness (AGREE) tool. The method was applied for analyzing PASHs in PM2.5 samples collected in three time intervals per day from years with different sulfur contents in the diesel: S-500 (≤500 ppm sulfur) and S-50 (≤50 ppm sulfur). Fourteen PASHs were quantified with the highest concentrations observed for 2,8-DMDBT and 4,6-DMDBT, which are recalcitrant compounds. The ANOVA test indicated significant differences between sampling periods during the day. The reduction of diesel S-500 to S-50 corresponded to a 28 % decrease in the total sum of PASHs (∑PASHs) evaluated. Spearman's rank correlations allowed for verifying that BTs and DBTs were highly correlated, suggesting that they were derived from similar sources. A weak correlation of 2,1-BNT and 2,3-BNT with BTs and DBTs indicates that these compounds are a chemical proxy for the emission of diesel engines during the combustion process.
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Affiliation(s)
- Pedro Victor Bomfim Bahia
- Centro Interdisciplinar de Energia e Ambiente-CIEnAm, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Universidade Federal da Bahia, Instituto de Química, Programa de Pós-Graduação em Química, 40170-115, Salvador, BA, Brazil
| | - Madson Moreira Nascimento
- Centro Interdisciplinar de Energia e Ambiente-CIEnAm, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente-INCT E&A, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil
| | - Gisele Olimpio da Rocha
- Centro Interdisciplinar de Energia e Ambiente-CIEnAm, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Universidade Federal da Bahia, Instituto de Química, Programa de Pós-Graduação em Química, 40170-115, Salvador, BA, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente-INCT E&A, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil
| | - Jailson Bittencourt de Andrade
- Centro Interdisciplinar de Energia e Ambiente-CIEnAm, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente-INCT E&A, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Centro Universitário SENAI-CIMATEC, Av. Orlando Gomes, 1845 Piatã, 41650-010, Salvador, BA, Brazil
| | - Maria Elisabete Machado
- Centro Interdisciplinar de Energia e Ambiente-CIEnAm, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil; Universidade Federal da Bahia, Instituto de Química, Programa de Pós-Graduação em Química, 40170-115, Salvador, BA, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente-INCT E&A, Universidade Federal da Bahia, 40170-115, Salvador, BA, Brazil.
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3
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Bahia PVB, de Oliveira VA, Nascimento MM, Santos LO, da Rocha GO, de Andrade JB, Machado ME. Multivariate optimization of a green procedure for determination of emerging polycyclic aromatic nitrogen heterocycles in PM 2.5 from sites with different characteristics. Anal Bioanal Chem 2023; 415:6177-6189. [PMID: 37541975 DOI: 10.1007/s00216-023-04889-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/14/2023] [Accepted: 07/26/2023] [Indexed: 08/06/2023]
Abstract
Emerging polycyclic aromatic nitrogen heterocycles (PANHs) contributes significantly to the health risk associated with inhaling polluted air. However, there is a lack of analytical methods with the needed performance to their determination. This study presents the optimization and validation for the first time of a green microscale extraction procedure for the determination of twenty-one PANHs, including carbazole, indole, and quinolone classes, in particulate matter (PM2.5) samples by gas chromatography-mass spectrometry. A simplex-centroid mixture design and full factorial design (23) were employed to optimize the following extraction parameters: type and volume of solvent, sample size, extraction time, and necessity of a cleanup step. Low limits of detection and quantification (LOD < 0.97 pg m-3 and LOQ < 3.24 pg m-3, respectively) were obtained in terms of matrix-matched calibration. The accuracy and precision of the method were adequate, with recoveries in three levels between 73 to 120% and intraday and interday relative standard deviations from 2.0 to 12.9% and 7.3 to 18.9%, respectively. The green character of the method was evaluated using the Analytical Greenness (AGREE) tool, where a score of 0.69 was obtained, indicating a great green procedure. The method was applied to PM2.5 samples collected from sites with different characteristics; the concentrations ranged from 69.3 pg m-3 (2-methylcarbazole) to 11,874 pg m-3 (carbazole) for individual PANHs and from 2306 to 24,530 pg m-3 for ∑21PANHs. Principal component analysis (PCA) and hierarchical clustering enabled discrimination of the sampling sites according to the PANHs concentrations. The score plots formed two distinct groups, one with samples containing higher concentrations of PANHs, corresponding to sites with a major influence from diesel emissions, and another group with minor PANH contents, corresponding to sites impacted by emissions from urban traffic and industrial activities.
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Affiliation(s)
- Pedro Victor Bomfim Bahia
- Instituto de Química, Programa de Pós-Graduação Em Química, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Centro Interdisciplinar de Energia E Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
| | - Valdiria Almeida de Oliveira
- Instituto de Química, Programa de Pós-Graduação Em Química, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
| | - Madson Moreira Nascimento
- Centro Interdisciplinar de Energia E Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Instituto Nacional de Ciência E Tecnologia Em Energia E Ambiente - INCT E&A, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
| | | | - Gisele Olimpio da Rocha
- Instituto de Química, Programa de Pós-Graduação Em Química, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Centro Interdisciplinar de Energia E Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Instituto Nacional de Ciência E Tecnologia Em Energia E Ambiente - INCT E&A, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
| | - Jailson Bittencourt de Andrade
- Centro Interdisciplinar de Energia E Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Instituto Nacional de Ciência E Tecnologia Em Energia E Ambiente - INCT E&A, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil
- Centro Universitário SENAI-CIMATEC, Salvador, BA, 41650-010, Brazil
| | - Maria Elisabete Machado
- Instituto de Química, Programa de Pós-Graduação Em Química, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil.
- Centro Interdisciplinar de Energia E Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil.
- Instituto Nacional de Ciência E Tecnologia Em Energia E Ambiente - INCT E&A, Universidade Federal da Bahia, Salvador, BA, 40170-115, Brazil.
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Atilio NC, Fertonani FL, de Oliveira EC. Modified and Optimized Glass Electrode for pH Measurements in Hydrated Ethanol Fuel. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27228048. [PMID: 36432149 PMCID: PMC9694676 DOI: 10.3390/molecules27228048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/10/2022] [Accepted: 11/16/2022] [Indexed: 11/22/2022]
Abstract
One of the quality control parameters of ethanol fuel is pH, established by the Brazilian standard ABNT NBR 10891, whose scope is specific for hydrated ethanol fuel, and by the American standard ASTM D 6423, which focuses on anhydrous ethanol fuel. This study presented a modified and optimized structure using a single solvent, both for the glass electrode and the external reference electrode, to minimize the presence of the liquid junction potential for measuring the pH of hydrated ethanol fuel. The Box-Behnken design enabled us to determine the optimal condition expected for the new measurement system, which was compared with the systems proposed by the standard references and the turning range of acid-base indicators using parametric and nonparametric tests. The results revealed that the pH values obtained by the different systems are statistically different, and that only the values obtained by this proposal are suitable for the pH range found by the indicators. The optimized electrode presented an adequate response sensitivity to the Nernst equation, having an operational behavior adequate for the modified and optimized glass electrode for pH measurements in hydrated ethanol fuel.
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Affiliation(s)
- Natalia Cambiaghi Atilio
- Postgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, Brazil
| | - Fernando Luis Fertonani
- Biosciences, Languages and Exact Sciences Institute (Ibilce), São Paulo State University (Unesp), Rua Cristovão Colombo, 2265, Jardim Nazareth, São José do Rio Preto 15054-000, Brazil
| | - Elcio Cruz de Oliveira
- Postgraduate Programme in Metrology, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro 22451-900, Brazil
- Logistics, Operational Planning and Control, Measurement and Product Inventory Management, PETROBRAS S.A., Rio de Janeiro 20231-030, Brazil
- Correspondence:
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Elemental Profiles of Legumes and Seeds in View of Chemometric Approach. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12031577] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The study aimed to evaluate fourteen elements’ profiles of legumes and oilseeds, of various geographical origins, available on the Polish market. They were determined by flame atomic absorption spectrometry (F-AAS) and spectrophotometric method (phosphorus) in 90 analytical samples. In general, legumes were characterized with lower mean concentrations of Ca, Mg, Na, P, Zn, Cu, Fe, Mn, and Cr than oilseeds. However, the concentrations ranges within each group differed significantly (p < 0.05). Calcium content varied between 6.2 and 243.5 mg/100 g in legumes and 38.4 and 2003 mg/100 g in oilseeds. In the case of Fe, its concentration was between 1.99 mg/100 g and 10.5 mg/100 g in legumes, and 2.05 mg and 12.15 mg/100 g in seeds. All the samples were characterized with Pb concentration below the LOQ (30 µg/100 g). In the case of Cd, its presence (>LOQ, 9 µg/100 g) was confirmed in one sample of legumes (soybean) and five samples of seeds (poppy seeds, roasted linseeds, hulled wheat, linseed, and sunflower seeds). The detected Cd content in every sample, except for soybean and hulled wheat, exceeded the permissible European standards. According to Kruskal-Wallis test results, Mg, Na, K, P, Zn, Cu, Mn, Cr, and Cd content depended on the type of the analyzed product, while in the case of botanical provenance such relationship was recorded for most of the analyzed components, except for Fe, Cr, and Co. Factor and cluster analyses classified the analyzed samples in view of their botanical species and type based on their mineral composition.
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FARIAS AS, SANTOS HM, SILVA JUNIOR ALSD, SILVA VHCD, MENDONÇA RBES, COUTINHO JP, LÔBO IP, JESUS RMD. Multivariate approaches applied to optimization of an ultrasound-assisted extraction procedure for determination of essential elements in guarana samples by ICP OES. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.01321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Bahia PVB, Nascimento MM, Hatje V, de Andrade JB, Machado ME. Microscale extraction combined with gas chromatography/mass spectrometry for the simultaneous determination of polycyclic aromatic hydrocarbons and polycyclic aromatic sulfur heterocycles in marine sediments. J Chromatogr A 2021; 1653:462414. [PMID: 34320434 DOI: 10.1016/j.chroma.2021.462414] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 06/15/2021] [Accepted: 07/06/2021] [Indexed: 10/20/2022]
Abstract
This paper describes a novel method based on an ultrasound-assisted extraction microscale device (UAE-MSD) for the rapid and simultaneous determination of polycyclic aromatic hydrocarbons (PAH) and polycyclic aromatic sulfur heterocycles (PASH) in marine sediments. Solvent extraction conditions were optimized by applying a simplex-centroid mixture design. Optimum conditions were used to validate and determine the concentrations of 17 PAH and 7 PASH. The best conditions were obtained by extracting sediments with 500 µL of DCM:MeOH (65:35, v:v) over 23 min of sonication. Analytes were determined by gas chromatography/mass spectrometry in selective ion monitoring (GC-MS/SIM). Matrix effects were evaluated, and matrix-matched calibration was used for quantitation. Analytical method validation was carried out using the certified reference material NIST SRM 1941b, as well as sediment spiked with PASH at three concentration levels. Recoveries ranged between 70.0 ± 3.5% and 119 ± 9.1% for PAH and 80.6 ± 10.4% and 120 ± 10% for PASH. Linearity (R2) was ≥0.99 for all compounds. Method detection limits ranged from 8.8 to 30.2 ng g-1, while limits of quantification ranged from 29.4 to 1011 ng g-1. UAE-MSD was applied to marine sediments exposed to different anthropogenic impacts collected in Todos os Santos Bay, Brazil. PAH concentrations ranged from <LOQ to 667 ng g-1, while PASH levels were <LOQ to 1152 ng g-1. Dibenzothiophene was the compound presented in the highest concentration in all samples, with values up to 249 ng g-1. The results indicated contributions of pyrogenic sources from all compounds. The developed method can potentially be applied to extract trace levels of compounds in different solid matrices to minimize extraction time and solvent consumption.
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Affiliation(s)
- Pedro Victor Bomfim Bahia
- Instituto de Química, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Madson Moreira Nascimento
- Instituto de Química, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Vanessa Hatje
- Instituto de Química, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Jailson Bittencourt de Andrade
- Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Universitário SENAI-CIMATEC, Av. Orlando Gomes, 1845 - Piatã, Salvador, BA 41650-010, Brazil
| | - Maria Elisabete Machado
- Instituto de Química, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil.
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Vasil’eva IE, Shabanova EV. Plant-Matrix Certified Reference Materials as a Tool for Ensuring the Uniformity of Chemical Measurements. JOURNAL OF ANALYTICAL CHEMISTRY 2021. [DOI: 10.1134/s1061934821020143] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Nascimento MM, da Rocha GO, de Andrade JB. Customized dispersive micro-solid-phase extraction device combined with micro-desorption for the simultaneous determination of 39 multiclass pesticides in environmental water samples. J Chromatogr A 2020; 1639:461781. [PMID: 33517136 DOI: 10.1016/j.chroma.2020.461781] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Revised: 11/27/2020] [Accepted: 12/01/2020] [Indexed: 01/18/2023]
Abstract
A dispersive micro-solid phase extraction (d-µ-SPE) procedure was developed for the simultaneous extraction of 39 multiclass pesticides, containing a variety of chemical groups (organophosphate, organochlorine, pyrethroid, strobilurin, thiocarbamate, triazole, imidazole, and triazine), from water samples. A customized d-µ-SPE glass device was combined with a multi-tube platform vortex and a micro-desorption unit (Whatman Mini-UniPrep G2 syringeless filter), which allowed the unique simultaneous desorption, extract filtration, and injection. A simplex-centroid mixture design and Doehlert design were employed to optimize the extraction conditions. The optimized extraction conditions consisted of an extraction time of 30 min, an addition of 6.74 % of NaCl into 100 mL of water sample, and a desorption time of 24 min with 500 µL of EtAc. The procedure provided a low limit of detection (LOD), ranging from 0.51 ng L-1 (4,4-DDE) to 22.4 ng L-1 (dimethoate), and an enrichment factor ranging from 72.5 (dimethoate) to 200 (tebuconazole). The relative recoveries of the pesticides from spiked freshwater and seawater ranged from 74.2 % (endrin) to 123 % (molinate). The proposed procedure was applied to detect the presence of multiclass pesticides in environmental water samples. Three pesticides commonly applied in Brazil, namely, malathion, dimethoate, and lambda-cyhalothrin, were detected in concentrations ranging from <LOD to 120 ng L-1 (dimethoate).
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Affiliation(s)
- Madson Moreira Nascimento
- Universidade Federal da Bahia, Instituto de Química, Campus de Ondina, Salvador, BA 40170-115, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Gisele Olímpio da Rocha
- Universidade Federal da Bahia, Instituto de Química, Campus de Ondina, Salvador, BA 40170-115, Brazil; Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Jailson B de Andrade
- Instituto Nacional de Ciência e Tecnologia em Energia e Ambiente - INCT, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Interdisciplinar de Energia e Ambiente - CIEnAm, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil; Centro Universitário SENAI-CIMATEC, Av. Orlando Gomes, 1845 - Piatã, Salvador, BA 41650-010, Brazil.
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10
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Silva MJ, Soares SAR, Santos IDF, Pepe IM, Teixeira LR, Pereira LG, Silva LBA, Celino JJ. Optimization of the photocatalytic degradation process of aromatic organic compounds applied to mangrove sediment. Heliyon 2020; 6:e05163. [PMID: 33088946 PMCID: PMC7560603 DOI: 10.1016/j.heliyon.2020.e05163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Revised: 08/06/2020] [Accepted: 10/01/2020] [Indexed: 11/24/2022] Open
Abstract
Polycyclic aromatic hydrocarbons (PAHs) are part of a class of organic compounds resistant to natural degradation. In this way, heterogeneous photocatalysis becomes useful to degrade persistent organic pollutants, however it can be influenced by environmental variables (i.e.: organic matter) and experimental factors such as: mass of the photocatalyst and irradiation time. The objective of this research was to use a factorial design 2k as a function of the multiple response (MR) to evaluate simultaneously experimental conditions for the photodegradation of polycyclic aromatic hydrocarbons in contaminated mangrove sediment and its application in oil from Potiguar Basin in Brazil. The sediment samples collected in Belmonte city (Southern Bahia state) were contaminated with 0.25 mg kg−1 of Acenaphthene, Anthracene, Benzo[a]Anthracene, Indene[1,2,3cd]pyrene, Dibenzo[ah]anthracene, Benzo[ghi]pyrene. Factors such as mass of the photocatalyst and irradiation time were evaluated in factorial design 22, with triplicate from the central point, to 1g of the PAH contaminated sediment. After performing the experiments, it was found that the best experimental condition for the degradation of all PAHs indicated by MR was the central point (0.5 g of photocatalyst and 12h of irradiation). For such conditions, the half-life of PAHs varied from 3.51 to 9.37 h and the degradation speed constant between 0.0740 to 0.1973 h−1. The comparison of the optimized methodology between photolysis tests and heterogeneous photocatalysis was performed using the Kruskal-Wallis test, which indicated a difference for the reference solution, where heterogeneous photocatalysis was more efficient in the degradation of PAHs. The optimized methodology was apply in samples contaminated with crude oil from Potiguar Basin, no significant difference was observed in the aromatic fraction, using for the Kruskal-Wallis test. Heterogeneous photocatalysis has shown to be a promising remediation technique to remedy aromatic organic compounds in mangrove sediments.
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Affiliation(s)
- Marcio J Silva
- Postgraduate Program in Geochemistry: Petroleum and Environment, Geoscience Institute, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Sarah A R Soares
- LEPETRO, Excellence in Geochemistry: Petroleum, Energy and Environment, Geoscience Institute, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Ingrid D F Santos
- LEPETRO, Excellence in Geochemistry: Petroleum, Energy and Environment, Geoscience Institute, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Iuri M Pepe
- Laboratory of Optical Properties, Institute of Physics, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Leandro R Teixeira
- Laboratory of Optical Properties, Institute of Physics, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Lucas G Pereira
- Laboratory of Optical Properties, Institute of Physics, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Lucas B A Silva
- Laboratory of Optical Properties, Institute of Physics, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
| | - Joil J Celino
- Postgraduate Program in Geochemistry: Petroleum and Environment, Geoscience Institute, Federal University of Bahia, Rua Barão de Jeremoabo, s/n, 40170-020 Salvador, BA, Brazil
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11
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Gamela RR, Costa VC, Sperança MA, Pereira-Filho ER. Laser-induced breakdown spectroscopy (LIBS) and wavelength dispersive X-ray fluorescence (WDXRF) data fusion to predict the concentration of K, Mg and P in bean seed samples. Food Res Int 2020; 132:109037. [DOI: 10.1016/j.foodres.2020.109037] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Revised: 01/23/2020] [Accepted: 01/25/2020] [Indexed: 12/23/2022]
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12
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Costa FS, Leal RVP, Pacheco CSV, Amorim FÃBAC, de Jesus RM, Santos LN, da Silva EGOP. Multivariate optimization of an ultrasound-assisted extraction procedure for the determination of Cu, Fe, Mn, and Zn in plant samples by flame atomic absorption spectrometry. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2020; 12:2509-2516. [PMID: 32930241 DOI: 10.1039/d0ay00554a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
In this work, a simple, easy, and fast ultrasound-assisted extraction procedure for the determination of Cu, Fe, Mn, and Zn in plant samples was developed. Sample preparation conditions were optimized in a multivariate manner using mixture design and Box-Behnken. The extraction conditions adequate to obtain the maximum response were 90% power, 10 minutes, 40 °C temperature, and using an extraction solution composed of HNO3 and HCl at a concentration of 0.5 and 1.1 mol L-1, respectively, for a volume of 10 mL and 250 mg of samples. Accuracy was verified from the analysis of a certified reference material (Apple leaves, NIST 1515) yielding recoveries between 89 and 98% for the procedure. Precision was evaluated in a repeatability study (n = 10), yielding RSDs less than 6.7%, and the limits of quantification (mg kg-1) were 0.95, 2.42, 1.31, and 1.18 for Cu, Fe, Mn, and Zn, respectively. The concentrations determined in the stem and leaf of the mangrove species varied according to the collection point and the tissue, being consistent with other studies. The proposed procedure was efficient and reliable for elemental determination in plant samples, with the advantages of low cost and reagent consumption besides short analysis time as a valid alternative to the conventional sample preparation procedure.
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Affiliation(s)
- Floriatan Santos Costa
- Universidade Estadual de Santa Cruz, Department of Exact and Technological Sciences, Ilhéus, BA 45662-900, Brazil.
- Universidade Federal do Paraná, Department of Chemistry, Curitiba, PR 81530-900, Brazil
| | - Raquel Viana Pinto Leal
- Universidade Estadual de Santa Cruz, Department of Exact and Technological Sciences, Ilhéus, BA 45662-900, Brazil.
| | | | - FÃ Bio Alan Carqueija Amorim
- Universidade Estadual de Santa Cruz, Department of Exact and Technological Sciences, Ilhéus, BA 45662-900, Brazil.
| | - Raildo Mota de Jesus
- Universidade Estadual de Santa Cruz, Department of Exact and Technological Sciences, Ilhéus, BA 45662-900, Brazil.
- Instituto Nacional de Ciência e Tecnologia de Energia e Ambiente, Universidade Federal da Bahia, Salvador, BA 40170-115, Brazil
| | - Luana Novaes Santos
- Universidade Estadual de Santa Cruz, Department of Exact and Technological Sciences, Ilhéus, BA 45662-900, Brazil.
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Bezerra MA, Lemos VA, Novaes CG, de Jesus RM, Filho HRS, Araújo SA, Alves JPS. Application of mixture design in analytical chemistry. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104336] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Abstract
The present study represents the determination of Ti and Cr in dry animal feeds using wet acid digestion and inductively coupled plasma–atomic emission spectrometry (ICP-AES), in order to use these metals as digestibility markers. A radiofrequency power of 1350 W and a nebulizer argon flow of 0.8 L/min was selected. The limits of detection were between 11.4 and 16.1 μg/g for titanium and between 10.7 and 38.2 μg/g for chromium. The recovery values for the aqueous solutions were 89.5–103.9% (titanium) and 85.3–104.2% (chromium), with relative standard deviations (RSD%) under 2.1% and standard errors under 2.32%, demonstrating that the method offered good accuracy and repeatability. Six different samples of commercially available feedstuffs (two cat foods, two dog foods, and two poultry foods) were analyzed and the levels of investigated metals were found to be in the ranges of 0.10 g/kg and <LOD for chromium and titanium, respectively (dog foods); 0.10–0.18 g/kg, 0.70 g/kg for chromium and titanium, respectively (cat foods); and 0.07 g/kg, 0.82–1.35 g/kg for chromium and titanium, respectively (poultry foods).
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15
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Costa VC, Pinheiro FC, Amorim FAC, Paranhos da Silva EG, Pereira-Filho ER. Multivariate optimization for the development of a sample preparation procedure and evaluation of calibration strategies for nutrient elements determination in handmade chocolate. Microchem J 2019. [DOI: 10.1016/j.microc.2019.104166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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16
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Simple and effective dispersive micro-solid phase extraction procedure for simultaneous determination of polycyclic aromatic compounds in fresh and marine waters. Talanta 2019; 204:776-791. [DOI: 10.1016/j.talanta.2019.06.061] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 06/14/2019] [Accepted: 06/15/2019] [Indexed: 11/20/2022]
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Rugnini L, Ellwood NTW, Costa G, Falsetti A, Congestri R, Bruno L. Scaling-up of wastewater bioremediation by Tetradesmus obliquus, sequential bio-treatments of nutrients and metals. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 172:59-64. [PMID: 30682634 DOI: 10.1016/j.ecoenv.2019.01.059] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 01/11/2019] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
Microalgae may be exploited in water or wastewater treatment facilities to reduce excess concentrations of nutrients and metals to comply with regulatory limits. In this study, we characterized the growth and phosphorus (P) removal capacity of an isolated strain of Tetradesmus obliquus VRUC280. Investigations were carried out from laboratory scale (50 mL) up to a 100 L outdoor photobioreactor (PBR). After 10 days, batch cultures removed up to 74% of the media P, while in the PBR, 95% removal was achieved within five days. The harvested biomass was then inactivated (freeze-dried) and used for metal adsorption tests, employing solutions containing 6.0 mg Cu L-1 or 4.8 mg Ni L-1. Metal removal rates were evaluated after 15, 30, 60 and 120 min by the analysis of liquid and biomass metal contents. For the latter, a specific biomass digestion method was developed. Cu removal ranged between 50% and 65%, while for Ni, removal varied between 30% and 50%. 300-400 mg Cu Kg DW-1 and 130-250 mg Ni Kg DW-1 were rapidly adsorbed on the cell surface of T. obliquus (ca. 15-30 min incubations). This study demonstrates the potential of microalgae, in this case T. obliquus, to remove sequentially P and metals from aqueous media.
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Affiliation(s)
- Lorenza Rugnini
- LBA-Laboratory for Biology of Algae, Department of Biology, University of Rome "Tor Vergata", via Cracovia 1, 00133 Rome, Italy.
| | | | - Giulia Costa
- Laboratory of Environmental Engineering, Dept. Civil Engineering and Computer Science Engineering, University of Rome "Tor Vergata", via del Politecnico 1, 00133 Rome, Italy
| | - Alessia Falsetti
- Laboratory of Environmental Engineering, Dept. Civil Engineering and Computer Science Engineering, University of Rome "Tor Vergata", via del Politecnico 1, 00133 Rome, Italy
| | - Roberta Congestri
- LBA-Laboratory for Biology of Algae, Department of Biology, University of Rome "Tor Vergata", via Cracovia 1, 00133 Rome, Italy; AlgaRes s.r.l., ed. PP1, Via della Ricerca Scientifica snc, 00133 Rome, Italy
| | - Laura Bruno
- LBA-Laboratory for Biology of Algae, Department of Biology, University of Rome "Tor Vergata", via Cracovia 1, 00133 Rome, Italy; AlgaRes s.r.l., ed. PP1, Via della Ricerca Scientifica snc, 00133 Rome, Italy
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Multivariate Optimization of Ultrasound-Assisted Extraction Procedure for the Determination of Ca, Fe, K, Mg, Mn, P, and Zn in Pepper Samples by ICP OES. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01524-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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19
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Bezerra MA, Ferreira SLC, Novaes CG, dos Santos AMP, Valasques GS, da Mata Cerqueira UMF, dos Santos Alves JP. Simultaneous optimization of multiple responses and its application in Analytical Chemistry – A review. Talanta 2019; 194:941-959. [DOI: 10.1016/j.talanta.2018.10.088] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 10/26/2018] [Accepted: 10/26/2018] [Indexed: 01/05/2023]
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20
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Souza SO, Pereira TRS, Ávila DVL, Paixão LB, Soares SAR, Queiroz AFS, Pessoa AGG, Korn MDGA, Maranhão TA, Araujo RGO. Optimization of sample preparation procedures for evaluation of the mineral composition of fish feeds using ICP-based methods. Food Chem 2019; 273:106-114. [DOI: 10.1016/j.foodchem.2018.01.178] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 01/18/2018] [Accepted: 01/29/2018] [Indexed: 12/01/2022]
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21
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Ferreira SL, Silva Junior MM, Felix CS, da Silva DL, Santos AS, Santos Neto JH, de Souza CT, Cruz Junior RA, Souza AS. Multivariate optimization techniques in food analysis – A review. Food Chem 2019; 273:3-8. [DOI: 10.1016/j.foodchem.2017.11.114] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 10/27/2017] [Accepted: 11/30/2017] [Indexed: 02/04/2023]
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22
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Classification of cowpea beans using multielemental fingerprinting combined with supervised learning. Food Control 2019. [DOI: 10.1016/j.foodcont.2018.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Ávila DVL, Souza SO, Korn MGA, Pessoa AGG, Araujo RGO. Analysis of children modelling clay (toy) using inductively coupled plasma-based methods. Talanta 2018; 188:273-281. [PMID: 30029376 DOI: 10.1016/j.talanta.2018.05.083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 11/26/2022]
Abstract
This work proposes the application of a Doehlert design to optimize dilute HNO3 and H2O2 concentrations employed for the digestion of samples of modelling clay for children (used as toy). Inductively coupled plasma-based (ICP) methods were employed to determine 22 inorganic constituents (Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, P, Pb, S, Sb, Se, Sr, V and Zn) in children's modelling clay samples. The limits of quantification (LoQ) obtained were between 0.003 mg kg-1 (Cd, Co and Sb) and 0.54 g kg-1(Ca) employing ICP-based methods. The accuracy and precision of the methods were evaluated by analysing the certified reference materials (CRMs) oyster tissue (NIST 1566b), rice flour (NIST 1568b), peach leaves (NIST 1547) and tomato leaves (NIST 1573a), along with addition and recovery tests. The children's modelling clay samples presented concentrations of As, Ba, Cd, Cr, Pb, Sb and Se in agreement with the maximum values established by National Institute of Metrology, Quality and Technology (Instituto Nacional de Metrologia, Qualidade e Tecnologia - INMETRO). However, for other elements it were obtained concentrations within the following ranges: Al (0.83 ± 0.12-2.91 ± 0.04 g kg-1), Ca (16.09 ± 0.20-24.56 ± 1.00 g kg-1), Cu (< 0.30-30.01 ± 2.11 mg kg-1), Fe (< 5.3 - 13.21 ± 3.94 mg kg-1), K (1.31 ± 0.33-33.47 ± 0.75 g kg-1), Mg (0.90 ± 0.04-1.36 ± 0.05 g kg-1), Mn (3.32 ± 0.10-121.05 ± 1.88 mg kg-1), Na (12.07 ± 0.88-36.77 ± 0.50 g kg-1), Sr (4.23 ± 0.47-22.43 ± 6.95 mg kg-1), P (1.00 ± 0.13-57.43 ± 0.88 g kg-1), V (0.25 ± 0.07-1.15 ± 0.19 mg kg-1), S (3.57 ± 0.77-48.49 ± 1.02 g kg-1), Zn (< 4.4-11.82 ± 0.49 mg kg-1), Co (0.020 ± 0.002-0.060 ± 0.020 mg kg-1) and Ni (< 0.03-1.33 ± 0.46 mg kg-1). These elements have no minimum and maximum limits established by legislation for children's modelling clay so, a comparison was not possible. The ICP-based methods presented an efficient routine application in the analysis of modelling clay.
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Affiliation(s)
- Dayara Virgínia Lino Ávila
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Salvador, Bahia 40170-115, Brazil
| | - Sidnei Oliveira Souza
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Salvador, Bahia 40170-115, Brazil
| | - Maria Graças A Korn
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Salvador, Bahia 40170-115, Brazil; Instituto Nacional de Ciência e Tecnologia do CNPq - INCT de Energia e Meio Ambiente, Universidade Federal da Bahia, Salvador, BA, Brazil
| | - Amália G G Pessoa
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Salvador, Bahia 40170-115, Brazil
| | - Rennan G O Araujo
- Universidade Federal da Bahia, Instituto de Química, Departamento de Química Analítica, Salvador, Bahia 40170-115, Brazil; Instituto Nacional de Ciência e Tecnologia do CNPq - INCT de Energia e Meio Ambiente, Universidade Federal da Bahia, Salvador, BA, Brazil.
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24
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Ferreira SL, Lemos VA, de Carvalho VS, da Silva EG, Queiroz AF, Felix CS, da Silva DL, Dourado GB, Oliveira RV. Multivariate optimization techniques in analytical chemistry - an overview. Microchem J 2018. [DOI: 10.1016/j.microc.2018.04.002] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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25
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Nascimento MM, da Rocha GO, de Andrade JB. A rapid low-consuming solvent extraction procedure for simultaneous determination of 34 multiclass pesticides associated to respirable atmospheric particulate matter (PM2.5) by GC–MS. Microchem J 2018. [DOI: 10.1016/j.microc.2018.03.023] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Multivariate Optimization for the Development of a Fast and Simple Ultrasound-Assisted Extraction Procedure for Multielemental Determination in Tea Leaves by Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES). FOOD ANAL METHOD 2018. [DOI: 10.1007/s12161-018-1171-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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27
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Amorim FAC, Costa VC, Silva EGPD, Lima DDC, Jesus RMD, Bezerra MDA. Multivariate optimization of simple procedure for determination of Fe and Mg in cassava starch employing slurry sampling and FAAS. Food Chem 2017; 227:41-47. [DOI: 10.1016/j.foodchem.2016.12.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 11/29/2016] [Accepted: 12/10/2016] [Indexed: 02/08/2023]
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28
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Tarantino TB, Barbosa IS, de C. Lima D, de G. Pereira M, Teixeira LSG, Korn MGA. Microwave-Assisted Digestion Using Diluted Nitric Acid for Multi-element Determination in Rice by ICP OES and ICP-MS. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0658-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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A review of multivariate designs applied to the optimization of methods based on inductively coupled plasma optical emission spectrometry (ICP OES). Microchem J 2016. [DOI: 10.1016/j.microc.2016.05.015] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Use of tartaric acid–citric acid–sucrose as chemical modifier for the determination of lead in several matrices employing ET AAS. Microchem J 2016. [DOI: 10.1016/j.microc.2015.12.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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31
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Villa JE, Pereira CD, Cadore S. A novel, rapid and simple acid extraction for multielemental determination in chocolate bars. Microchem J 2015. [DOI: 10.1016/j.microc.2015.03.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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32
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Multivariate optimisation of ICP OES instrumental parameters for Pb/Ba/Sb measurement in gunshot residues. Microchem J 2015. [DOI: 10.1016/j.microc.2015.01.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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33
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BahramParvar M, Tehrani MM, Razavi SMA, Koocheki A. Application of simplex-centroid mixture design to optimize stabilizer combinations for ice cream manufacture. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2015; 52:1480-8. [PMID: 25745216 PMCID: PMC4348263 DOI: 10.1007/s13197-013-1133-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/25/2013] [Accepted: 08/01/2013] [Indexed: 10/26/2022]
Abstract
This study aimed to obtain the optimum formulation for stabilizers in ice cream that could contest with blends presented nowadays. Thus, different mixtures of three stabilizers, i.e. basil seed gum, carboxymethyl cellulose, and guar gum, at two concentrations (0.15 % & 0.35 %) were studied using mixture design methodology. The influence of these mixtures on some properties of ice cream and the regression models for them were also determined. Generally, high ratios of basil seed gum in mixture developed the apparent viscosity of ice cream mixes and decreased the melting rate. Increasing proportion of this stabilizer as well as guar gum in the mixtures at concentration of 0.15 % enhanced the overrun of samples. Based on the optimization criteria, the most excellent combination was 84.43 % basil seed gum and 15.57 % guar gum at concentration of 0.15 %. This research proved the capability of basil seed gum as a novel stabilizer in ice cream stabilization.
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Affiliation(s)
- Maryam BahramParvar
- Department of Food Science and Technology, Ferdowsi University of Mashhad (FUM), Khorasan Razavi, P.O. Box 91775 – 1163, Iran
| | - Mostafa Mazaheri Tehrani
- Department of Food Science and Technology, Ferdowsi University of Mashhad (FUM), Khorasan Razavi, P.O. Box 91775 – 1163, Iran
| | - Seyed M. A. Razavi
- Department of Food Science and Technology, Ferdowsi University of Mashhad (FUM), Khorasan Razavi, P.O. Box 91775 – 1163, Iran
| | - Arash Koocheki
- Department of Food Science and Technology, Ferdowsi University of Mashhad (FUM), Khorasan Razavi, P.O. Box 91775 – 1163, Iran
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Frena M, Quadros DP, Castilho IN, de Gois JS, Borges DL, Welz B, Madureira LA. A novel extraction-based procedure for the determination of trace elements in estuarine sediment samples by ICP-MS. Microchem J 2014. [DOI: 10.1016/j.microc.2014.05.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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35
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Determination of micronutrient minerals in coconut milk by ICP OES after ultrasound-assisted extraction procedure. J Food Compost Anal 2014. [DOI: 10.1016/j.jfca.2014.02.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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36
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Fast determination of trace elements in organic fertilizers using a cup-horn reactor for ultrasound-assisted extraction and fast sequential flame atomic absorption spectrometry. Talanta 2014; 119:232-9. [DOI: 10.1016/j.talanta.2013.11.018] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2013] [Revised: 11/06/2013] [Accepted: 11/06/2013] [Indexed: 11/22/2022]
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BARROS JOELIAM, BEZERRA MARCOSA, VALASQUES GISSELIS, NASCIMENTO JUNIOR BARAQUIZIOBDO, SOUZA ANDERSONS, ARAGAO NADIAMDE. Multivariate optimization of an ultrasound-assisted extraction procedure for Cu, Mn, Ni and Zn determination in ration to chickens. AN ACAD BRAS CIENC 2013; 85:891-902. [DOI: 10.1590/s0001-37652013000300005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2011] [Accepted: 09/05/2012] [Indexed: 11/22/2022] Open
Abstract
In this work, multivariate optimization techniques were used to develop a method based on the ultrasound-assisted extraction for copper, manganese, nickel and zinc determination from rations for chicken nutrition using flame atomic absorption spectrometry. The proportions of extracting components (2.0 mol.L–1 nitric, hydrochloric and acetic acid solutions) were optimized using centroid-simplex mixture design. The optimum proportions of this mixture taken as percentage of each component were respectively 20%, 37% and 43%. Variables of method (sample mass, sonication time and final acid concentration) were optimized using Doehlert design. The optimum values found for these variables were respectively 0.24 g, 18s and 3.6 mol.L–1. The developed method allows copper, manganese, nickel and zinc determination with quantification limits of 2.82; 4.52; 10.7; e 9.69 µg.g–1, and precision expressed as relative standard deviation (%RSD, 25 µg.g–1, N = 5) of 5.30; 2.13; 0.88; and 0.83%, respectively. This method was applied in the analytes determination from chicken rations collected from specialized commerce in Jequié city (Bahia State/Brazil). Application of paired t-test at the obtained results, in a confidence level of 95%, does not show significant difference between the proposed method and the microwave-assisted digestion.
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Multivariate analysis of the mineral content of raw and cooked okra (Abelmoschus esculentus L.). Microchem J 2013. [DOI: 10.1016/j.microc.2013.05.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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39
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De La Calle I, Costas M, Cabaleiro N, Lavilla I, Bendicho C. Fast method for multielemental analysis of plants and discrimination according to the anatomical part by total reflection X-ray fluorescence spectrometry. Food Chem 2013; 138:234-41. [DOI: 10.1016/j.foodchem.2012.09.105] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2012] [Revised: 06/22/2012] [Accepted: 09/30/2012] [Indexed: 10/27/2022]
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40
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da Costa SSL, Pereira ACL, Passos EA, Alves JDPH, Garcia CAB, Araujo RGO. Multivariate optimization of an analytical method for the analysis of dog and cat foods by ICP OES. Talanta 2013; 108:157-64. [PMID: 23601884 DOI: 10.1016/j.talanta.2013.03.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2012] [Revised: 02/28/2013] [Accepted: 03/01/2013] [Indexed: 11/24/2022]
Abstract
Experimental design methodology was used to optimize an analytical method for determination of the mineral element composition (Al, Ca, Cd, Cr, Cu, Ba, Fe, K, Mg, Mn, P, S, Sr and Zn) of dog and cat foods. Two-level full factorial design was applied to define the optimal proportions of the reagents used for microwave-assisted sample digestion (2.0 mol L(-1) HNO3 and 6% m/v H2O2). A three-level factorial design for two variables was used to optimize the operational conditions of the inductively coupled plasma optical emission spectrometer, employed for analysis of the extracts. A radiofrequency power of 1.2 kW and a nebulizer argon flow of 1.0 L min(-1) were selected. The limits of quantification (LOQ) were between 0.03 μg g(-1) (Cr, 267.716 nm) and 87 μg g(-1) (Ca, 373.690 nm). The trueness of the optimized method was evaluated by analysis of five certified reference materials (CRMs): wheat flour (NIST 1567a), bovine liver (NIST 1577), peach leaves (NIST 1547), oyster tissue (NIST 1566b), and fish protein (DORM-3). The recovery values obtained for the CRMs were between 80 ± 4% (Cr) and 117 ± 5% (Cd), with relative standard deviations (RSDs) better than 5%, demonstrating that the proposed method offered good trueness and precision. Ten samples of pet food (five each of cat and dog food) were acquired at supermarkets in Aracaju city (Sergipe State, Brazil). Concentrations in the dog food ranged between 7.1 mg kg(-1) (Ba) and 2.7 g kg(-1) (Ca), while for cat food the values were between 3.7 mg kg(-1) (Ba) and 3.0 g kg(-1) (Ca). The concentrations of Ca, K, Mg, P, Cu, Fe, Mn, and Zn in the food were compared with the guidelines of the United States' Association of American Feed Control Officials (AAFCO) and the Brazilian Ministry of Agriculture, Livestock, and Food Supply (Ministério da Agricultura, Pecuária e Abastecimento-MAPA).
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Affiliation(s)
- Silvânio Silvério Lopes da Costa
- Laboratório de Química Analítica Ambiental (LQA), Departamento de Química, Centro de Ciências Exatas e Tecnologia, Universidade Federal de Sergipe (UFS), 49100-000 São Cristovão (SE), Brazil
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Geographical Characterization of Beans Based on Trace Elements After Microwave-Assisted Digestion Using Diluted Nitric Acid. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9520-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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BahramParvar M, Razavi SM, Mazaheri Tehrani M. Optimising the ice cream formulation using basil seed gum (Ocimum basilicumL.) as a novel stabiliser to deliver improved processing quality. Int J Food Sci Technol 2012. [DOI: 10.1111/j.1365-2621.2012.03148.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Maryam BahramParvar
- Department of Food Science and Technology; Ferdowsi University of Mashhad (FUM); PO Box 91775; Mashhad; Khorasan Razavi; 1163; Iran
| | - Seyed M.A. Razavi
- Department of Food Science and Technology; Ferdowsi University of Mashhad (FUM); PO Box 91775; Mashhad; Khorasan Razavi; 1163; Iran
| | - Mostafa Mazaheri Tehrani
- Department of Food Science and Technology; Ferdowsi University of Mashhad (FUM); PO Box 91775; Mashhad; Khorasan Razavi; 1163; Iran
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Santos JS, Teixeira LS, Araújo RG, Fernandes AP, Korn MGA, Ferreira SL. Optimization of the operating conditions using factorial designs for determination of uranium by inductively coupled plasma optical emission spectrometry. Microchem J 2011. [DOI: 10.1016/j.microc.2010.08.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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dos Santos WP, Hatje V, Santil DDS, Fernandes AP, Korn MGA, de Souza MM. Optimization of a centrifugation and ultrasound-assisted procedure for the determination of trace and major elements in marine invertebrates by ICP OES. Microchem J 2010. [DOI: 10.1016/j.microc.2009.11.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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