scholarly journals Multielemental analysis of vegetable oils and fats by means of ICP-OES following a dilution and shot methodology

2020 ◽  
Vol 35 (9) ◽  
pp. 1897-1909
Author(s):  
Santiago Martínez ◽  
Raquel Sánchez ◽  
Johan Lefevre ◽  
José-Luis Todolí
Keyword(s):  
Vegetable Oils ◽  
Elemental Analysis ◽  
Fats And Oils ◽  
Analysis Method ◽  
Icp Oes ◽  
Multielemental Analysis

The accurate direct elemental analysis of fats and oils is accomplished according to a dilution and shot analysis method.

Comparison of physicochemical properties of edible vegetable oils commercially available in Bahir Dar, Ethiopia

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Physicochemical Properties ◽  
Vegetable Oils ◽  
Relative Viscosity ◽  
Acid Value ◽  
Smoke Point ◽  
Refractive Indices ◽  
Bahir Dar ◽  
Icp Oes ◽  
Saponification Value ◽  
Oil Sunflower

The physicochemical properties of six imported and one locally produced edible vegetable oils (soybean oil, sunflower oil, sunlit oil, hayat oil, avena oil, USA vegetable oil and Niger oil) purchased from Bahir Dar city, Ethiopia, were examined for their compositional quality. All the oil samples were characterized for specific gravity, moisture content, color, relative viscosity, refractive indices, ash content, peroxide value, saponification value, smoke point, acid value, free fatty acid value and trace metals contents using established methods. The result clearly indicates that some of the oil samples exhibited unacceptable value when compared with physicochemical parameters recommended by the Codex Alimentations Commission of FAO/WHO and the specification of Ethiopian standards. The contents of nickel (Ni), copper (Cu) and iron (Fe) in seven samples were determined using ICP-OES and their concentrations were found in the range of 1.8-20.4, 45.8-82.2 and 136.04-445.0 mg/kg, respectively.

scholarly journals A Comparative Study Between Conventional ICP-OES and the Innovative PLS Model-Assisted ICP-OES for the Assay of Trace Elements

2020 ◽  
Author(s):  
Adel M Michael ◽  
Ahmed A Mohamed ◽  
Yousef A Abdelaziz ◽  
Nesma M Fahmy
Keyword(s):  
Trace Elements ◽  
Elemental Analysis ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Official Method ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Flame Emission ◽  
Significant Difference ◽  
Student’S T

Abstract Background Inductively coupled plasma is widely used for elemental analysis with the advantage of being eco-friendly since the discharge is free of contaminants. Objective A rapid, novel method was developed for the quantitation of trace elements using inductively coupled plasma with optical emission spectrometry.This method has the advantage of simultaneous calibration compared to the conventional method. Method The assay was carried out for iron, copper, zinc, and molybdenum using the linear regression model partial least-squares. Results The method was optimized and validated as per the International Conference on Harmonization guidelines, showing highly accurate and precise results. The linearity range was 0.25–4 ppm for all trace elements under investigation. The method was applied for the assay of the cited elements in non-chelated and amino acid chelated multi-mineral preparations in the Egyptian market with acceptable mean percent recovery. Conclusions In comparison with the official method by flame emission, statistical analysis showed no significant difference with Student’s t-test and F-values. Highlights Inductively coupled plasma is superior as all of the elements can be measured simultaneously. The method was found to have a high degree of specificity and can be easily applied in routine elemental analysis in laboratories.

Multi-elemental analysis of particulate matter PM2.5 and PM10 by ICP OES

Talanta ◽  
2021 ◽  
Vol 221 ◽  
pp. 121457
Author(s):  
Eduardo José dos Santos Souza ◽  
Camilo Zapata Mora ◽  
Beatriz Helena Aristizábal Zuluaga ◽  
Clarice Dias Britto do Amaral ◽  
Marco Tadeu Grassi
Keyword(s):  
Particulate Matter ◽  
Elemental Analysis ◽  
Icp Oes ◽  
Pm2.5 And Pm10

Industrial development and application of biobased oleochemicals

2007 ◽  
Vol 79 (11) ◽  
pp. 1999-2011 ◽  
Author(s):  
Karlheinz Hill
Keyword(s):  
Vegetable Oils ◽  
Renewable Resources ◽  
Industrial Development ◽  
Raw Materials ◽  
Supply And Demand ◽  
Fats And Oils ◽  
Major Research ◽  
Industrial Use ◽  
Increasing Demand ◽  
Technology Area

In concepts for new products, performance, product safety, and product economy criteria are equally important. They are taken into account already when the raw materials base for a new industrial product development is defined. Here, renewable resources gain-again after the earlier "green trend" in the 1980s-increasing attention as an alternative raw materials source compared to fossil feedstock. The industrial use of carbohydrates, proteins, and vegetable oils aligns perfectly with the principles of Responsible Care and is an important part of green chemistry and sustainability in general. Since the 1950s, oleochemistry has grown to a major research and technology area in several institutions and industries. A large variety of products based on fats and oils have been developed since then for different uses, such as specialties for polymer applications, biodegradable mineral oil replacements for lubricants, and surfactants and emulsifiers for the home and personal-care industries. However, at present it seems that the use of renewable resources, especially vegetable oils, has to compete more and more with the increasing demand for bioenergy, which could cause an unbalanced supply and demand in the future or even a threat for the increasing demand for food in certain areas of the world.

Elemental analysis of instant soups and seasoning mixtures by ICP–OES

2007 ◽  
Vol 105 (1) ◽  
pp. 242-247 ◽  
Author(s):  
A KREJCOVA ◽  
T CERNOHORSKY ◽  
D MEIXNER
Keyword(s):  
Elemental Analysis ◽  
Icp Oes

Sensitivity of the external beam pixe elemental analysis method

1978 ◽  
Vol 149 (1-3) ◽  
pp. 469-473 ◽  
Author(s):  
A. Katsanos ◽  
A. Hadjiantoniou
Keyword(s):  
Elemental Analysis ◽  
External Beam ◽  
Analysis Method
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