Mineral Profile of Children’s Fast Food Menu Samples

2017 ◽  
Vol 100 (6) ◽  
pp. 1879-1884 ◽  
Author(s):  
Manuela Ruiz-de-Cenzano ◽  
Arancha Rochina-Marco ◽  
Óscar López-Salazar ◽  
Maria Luisa Cervera ◽  
Miguel de la Guardia
Keyword(s):  
Fast Food ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Soft Drink ◽  
Optical Emission ◽  
Rice Flour ◽  
Emission Spectrometry ◽  
Analytical Methodology ◽  
Inductively Coupled ◽  
Mineral Profile

Abstract Children’s fast food menus, including hamburgers served with french fries, dessert, and a soft drink, were analyzed to obtain the mineral profile of trace elements. The developed analytical methodology involved sample digestion under pressure inside a microwave oven with a mixture of HNO3 and H2O2 and inductively coupled plasma-optical emission spectrometry. The method was validated by carrying out the analysis of certified reference materials (NIST 1570a spinach leaves, NCS ZC73016 chicken, and NIST 1568a rice flour) and using recovery experiments. Repeatability was verified by analyzing replicate samples. Twenty-six elements were studied, 12 of which—aluminum, barium, calcium, copper, iron, potassium, lithium, magnesium, manganese, sodium, strontium, and zinc—were quantitatively determined. Results were compared with other studies of fast food and children’s menus published in the literature, and the nutritional value of samples was assessed with dietary intake guidelines.

Microwave assisted extraction of Cr(iii) and Cr(vi) from soil/sediments combined with ion exchange separation and inductively coupled plasma optical emission spectrometry detection

2014 ◽  
Vol 6 (24) ◽  
pp. 9653-9657 ◽  
Author(s):  
P. Mamatha ◽  
G. Venkateswarlu ◽  
A. V. N. Swamy ◽  
A. C. Sahayam
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Analytical Methodology ◽  
Inductively Coupled ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Ion Exchange Separation ◽  
Plasma Optical Emission Spectrometry ◽  
Soil Sediments

An analytical methodology has been developed for the speciation of Cr(iii) and Cr(vi) in soil/sediments.

scholarly journals Chlorine determination in medicinal plants by potentiometry with ion-selective electrode after microwave-induced combustion

2021 ◽  
Vol 5 (1) ◽  
pp. 19-25
Author(s):  
Mariele Samuel Nascimento ◽  
Gabriel Toneto Druzian ◽  
Rochele Sogari Picoloto ◽  
Paola Azevedo Mello ◽  
Erico M. M. Flores
Keyword(s):  
Medicinal Plants ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Ion Selective Electrode ◽  
Emission Spectrometry ◽  
Selective Electrode ◽  
Complete Combustion ◽  
Inductively Coupled ◽  
Relative Standard

A method based on microwave-induced combustion (MIC) was applied for medicinal plants digestion allowing further chlorine determination by potentiometry using ion-selective electrode (ISE). Sample masses ranging from 500 to 1000 mg were evaluated for MIC digestion. Water and 10, 25, 50, and 100 mmol/L NH4OH were investigated as absorbing solutions. The accuracy of the proposed method was evaluated by using certified reference materials (CRMs), by recovery tests (500 µg/g), and also by comparison with the results obtained by inductively coupled plasma optical emission spectrometry (ICP-OES) after microwave-assisted alkaline extraction (MAE). Using water or NH4OH solutions (10 to 100 mmol/L), recoveries close to 100% and relative standard deviation lower than 5% were obtained. Results were in agreement with CRMs values (better than 95%) and also with those values obtained by using the MAE method. The main advantage of the proposed method was the complete combustion of high sample mass (1000 mg) resulting in low quantification limit (12.5 µg/g) and chlorine determination at low concentration by ISE. Another advantage of the proposed method was the high chlorine stability in digests (up to 30 days of storage) even using water as absorbing solution, which is in agreement with green analytical chemistry recommendations. Finally, the proposed MIC method was applied for commercial medicinal plants and the chlorine concentration was in the range of 59.4 ± 1.4 to 2038 ± 70 µg/g. The proposed MIC method was considered suitable for quality control for chlorine determination in medicinal plants.

scholarly journals Comparison of Partial Digestion Procedures for Determination of Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, and Zn in Milk by Inductively Coupled Plasma-Optical Emission Spectrometry

2004 ◽  
Vol 87 (1) ◽  
pp. 151-156 ◽  
Author(s):  
Carmen S Kira ◽  
Franca D Maio ◽  
Vera A Maihara
Keyword(s):  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Hot Plate ◽  
Inductively Coupled ◽  
Large Numbers ◽  
Partial Digestion ◽  
Fast Procedure

Abstract A fast procedure was developed for determination of Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, and Zn in milk samples. This procedure consisted of a partial digestion with hydrochloric acid on a hot plate. The results obtained were compared with 3 other digestion procedures (dry ashing and 2 microwave digestions). All the procedures showed similar precision levels, with coefficients of variation <10% for most analyzed elements. Accuracy was evaluated by using certified reference materials, and the values obtained were within the confidence intervals for these products. The results obtained were not considered statistically different. The partial digestion on a hot plate with HCl can be very practical for laboratories with relatively large numbers of sample analyses.

Mineral profile of “fino” wines using inductively coupled plasma optical emission spectrometry methods

2012 ◽  
Vol 135 (1) ◽  
pp. 309-313 ◽  
Author(s):  
Mercedes Álvarez ◽  
Isabel M. Moreno ◽  
Silvia Pichardo ◽  
Ana M. Cameán ◽  
A. Gustavo González
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Mineral Profile ◽  
Plasma Optical Emission Spectrometry

scholarly journals Bioaccessibility Assessment of Cu, Fe, K, Mg, P, and Zn in Thermally Treated Lamb Meat

2021 ◽  
Author(s):  
Julymar de Higuera ◽  
Herick Santos ◽  
Aline de Oliveira ◽  
Ana Rita Nogueira
Keyword(s):  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Cooking Methods ◽  
Inductively Coupled ◽  
Lamb Meat ◽  
Temperature Loss ◽  
Meat Samples

A bioaccessibility test with raw and cooked lamb meat samples was performed. The evaluated cooking devices were grill, microwave oven, air fryer, pressure cooker, and electric oven. Physicochemical parameters and the total mass fraction of Cu, Fe, K, Mg, P, and Zn were determined in raw and cooked samples by inductively coupled plasma optical emission spectrometry (ICP OES). The trueness was evaluated using certified reference materials, with recoveries from 87 to 101%. The pressure cooking presented the major changes, including the highest values of internal temperature, loss of inorganic elements after cooking, and the lowest values of moisture and analyte mass fractions. An in vitro gastrointestinal simulation was performed, and the method was validated by an addition and recovery test, in which the trueness varied from 87 to 115%. The bioaccessibility ranged between 28-56, 4-19, 68-76, 41-54, 48-57, and 1-21% for Cu, Fe, K, Mg, P, and Zn, respectively. The cooking methods promoted changes in the meat samples, thus affecting the bioaccessibility of the nutrients. Based on the recommended dietary intake (RDI) calculation, lamb meat can be considered a good Fe, P, and Zn source.

scholarly journals Improvement and modification of energy-dispersive x-ray fluorescence method for determination of metal elements in cement leachates - chemometric approach

2020 ◽  
pp. 67-67
Author(s):  
Nevenka Mijatovic ◽  
Anja Terzic ◽  
Lato Pezo ◽  
Ljiljana Milicic ◽  
Dragana Zivojinovic
Keyword(s):  
Inductively Coupled Plasma ◽  
Chemical Elements ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Fluorescence Method ◽  
Energy Dispersive ◽  
Emission Spectrometry ◽  
X Ray ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

A modification of analytical procedure for energy-dispersive X-ray fluorescence (EDXRF) quantification of ten chemical elements (As, Ba, Cd, Co, Cr, Cu, Mo, Ni, Pb, Zn) in the leachates obtained from cement binders was developed. Twenty-nine testing samples were used in the experiment. All samples were based on Portland cement. Fly ash of different origin, zeolite and bentonite were employed as mineral additives in the cement binders. Distilled water was used as leachate. Validation of the modified EDXRF procedure was conducted in terms of limits of detection and quantification, working range, linearity, selectivity, precision, trueness, and robustness. Traceability of the procedure was established using certified reference materials. Uncertainty of measurement was confirmed via ?in-house? laboratory validation approach. The expanded uncertainties for ten analysed elements were obtained for entire working range of EDXRF method. Robustness of the modified EDXRF procedure was assessed by means of chemometric in-house approach. The results obtained by modified X-ray fluorescence method were additionally correlated to those acquired by inductively coupled plasma optical emission spectrometry to confirm that EDXRF can be used as an effective and reliable alternative method for analysis of cement leachates.

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