scholarly journals Migration of Silver and Copper Nanoparticles from Food Coating

Coatings ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 380
Author(s):  
Hamed Ahari ◽  
Leila Khoshboui Lahijani
Keyword(s):  
Copper Nanoparticles ◽  
Inductively Coupled Plasma ◽  
Food Packaging ◽  
Human Life ◽  
Analytical Techniques ◽  
Optical Emission ◽  
Atomic Emission ◽  
The Body ◽  
Toxic Effects ◽  
Inductively Coupled

Packaging containing nanoparticles (NPs) can increase the shelf life of products, but the presence of NPs may hazards human life. In this regard, there are reports regarding the side effect and cytotoxicity of nanoparticles. The main aim of this research was to study the migration of silver and copper nanoparticles from the packaging to the food matrix as well as the assessment techniques. The diffusion and migration of nanoparticles can be analyzed by analytical techniques including atomic absorption, inductively coupled plasma mass spectrometry, inductively coupled plasma atomic emission, and inductively coupled plasma optical emission spectroscopy, as well as X-ray diffraction, spectroscopy, migration, and titration. Inductively coupled plasma-based techniques demonstrated the best results. Reports indicated that studies on the migration of Ag/Cu nanoparticles do not agree with each other, but almost all studies agree that the migration of these nanoparticles is higher in acidic environments. There are widespread ambiguities about the mechanism of nanoparticle toxicity, so understanding these nanoparticles and their toxic effects are essential. Nanomaterials that enter the body in a variety of ways can be distributed throughout the body and damage human cells by altering mitochondrial function, producing reactive oxygen, and increasing membrane permeability, leading to toxic effects and chronic disease. Therefore, more research needs to be done on the development of food packaging coatings with consideration given to the main parameters affecting nanoparticles migration.

scholarly journals Sulphur and Heavy Metal Pollution in Urban Snow: Multi-Elemental Analytical Techniques and Interpretations

1985 ◽  
Vol 7 ◽  
pp. 175-180 ◽  
Author(s):  
S. Landsberger ◽  
R.E. Jervis
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Inductively Coupled Plasma ◽  
Analytical Techniques ◽  
Atomic Emission ◽  
Enrichment Factors ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled

Three multi-elemental techniques (neutron activation analysis, proton-induced X-ray emission and inductively coupled plasma-atomic emission spectrometry) are described in terms of their special advantages in determining sulphur and heavy metal pollution in urban snow. Environmental analytical interpretations, including wash-out factors, enrichment factors, inter-elemental correlations, mobilization factors, and toxicity potential, are also discussed.

scholarly journals Sulphur and Heavy Metal Pollution in Urban Snow: Multi-Elemental Analytical Techniques and Interpretations

1985 ◽  
Vol 7 ◽  
pp. 175-180
Author(s):  
S. Landsberger ◽  
R.E. Jervis
Keyword(s):  
Heavy Metal ◽  
Metal Pollution ◽  
Heavy Metal Pollution ◽  
Inductively Coupled Plasma ◽  
Analytical Techniques ◽  
Atomic Emission ◽  
Enrichment Factors ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled

Three multi-elemental techniques (neutron activation analysis, proton-induced X-ray emission and inductively coupled plasma-atomic emission spectrometry) are described in terms of their special advantages in determining sulphur and heavy metal pollution in urban snow. Environmental analytical interpretations, including wash-out factors, enrichment factors, inter-elemental correlations, mobilization factors, and toxicity potential, are also discussed.

ICP-AES analysis of some Mycenaean vases from the cemetery at Pylona, Rhodes

2000 ◽  
Vol 95 ◽  
pp. 219-238 ◽  
Author(s):  
Efi Karantzali ◽  
Matthew J. Ponting
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Atomic Emission ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission ◽  
Plasma Atomic Emission Spectrometry ◽  
Emission Data ◽  
Inductively Coupled ◽  
Selection Of

This paper presents the results of the chemical analyses by inductively coupled plasma atomic emission spectrometry (ICP-AES) of a selection of vases from the recent excavations of Mycenaean tombs at Pylona, Rhodes. The data are used to support and confirm the stylistic attributions of the vases as either local Rhodian products or mainland imports. It is suggested that the majority of the imports are from the Argolid, but that at least one other origin is likely as well. Two distinct compositional groups of ‘local’ pottery are also identified. Comparison is made with the data from the analyses of pottery from Ialysos and the veracity of the conclusions drawn from the earlier optical emission data is confirmed.

Higher Ca and Na content in the hair of obese people in Poland

2019 ◽  
Vol 89 (3-4) ◽  
pp. 176-184
Author(s):  
Małgorzata Kwiecień ◽  
Wioletta Samolińska ◽  
Sławomir Puczkowski ◽  
Magdalena Waśko ◽  
T. Blicharski
Keyword(s):  
Body Mass Index ◽  
Body Mass ◽  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
The Body ◽  
Emission Spectrometry ◽  
Obese People ◽  
Inductively Coupled ◽  
Hair Samples ◽  
Positive Correlations

Abstract. The authors of this paper decided to check whether the content of selected minerals in human hair is projected into the nutritional status of the body expressed as the BMI. The study focused on evaluating the content of calcium, sodium, potassium and magnesium in the hair of 7845 individuals in relation to their BMI. 5126 women and 2719 men aged from 18 to 92, domiciled throughout Poland, were involved in the study. Hair samples were taken from several points of the occipital scalp. Ca, Na, K and Mg in the hair were determined using inductively coupled plasma optical emission spectrometry (ICP-OES). The content of Ca and Na in the hair of obese people (>30.0 kg·m2) was higher (323 mg·kg−1 and 180 mg·kg−1) in comparison with the groups of people with normal body weight and those grade 2 underweight (<16.9 kg·m2): 191 mg·kg−1 and 103 mg·kg−1 respectively. The highest level of K (317 mg·kg−1) was found in the hair of people classed as grade 2 underweight. The body mass index caused no differentiation in the content of Mg in hair. Positive correlations were found between Ca-Na, Ca-Mg and Na-Mg and between the BMI of the subjects and the content of Ca in hair (R = 0.163; p < 0.01) and between the BMI and the content of Na (R = 0.191; p < 0.01). On the other hand, a negative relation between K and the BMI was correlated only to an infinitesimal degree (R = −0.030, p < 0.01). The results point to a relationship between the body mass index and the content of Ca, Na and K in the hair of adults.

scholarly journals Correlation of phosphorus level with macro- and microelements in the bristles of Landrace pigs

2021 ◽  
Vol 36 ◽  
pp. 06031
Author(s):  
Olga Zaiko ◽  
Andrey Nazarenko ◽  
Marya Strizhkova ◽  
Aleksandr Zheltikov ◽  
Tatyana Konovalova
Keyword(s):  
Inductively Coupled Plasma ◽  
Chemical Elements ◽  
Atomic Emission ◽  
The Body ◽  
Atomic Emission Spectrometry ◽  
Emission Spectrometry ◽  
Plasma Atomic Emission Spectrometry ◽  
Inductively Coupled ◽  
Calcium Magnesium ◽  
Tissue Calcium

The presented results expand the understanding of the normal chemical composition of the body. The study was carried out on the basis of a pig-breeding farm in the Altai Territory in 2016-2020 on clinically healthy 6-month-old pigs of the Landrace breed. Chemical analysis of pig bristles was performed by inductively coupled plasma atomic emission spectrometry. The data were processed using Statistica 8 software (StatSoft Inc., USA). A study of the correlations between phosphorus in bristles and other macro-, microelements, as well as chemical elements associated with phosphorus, has been carried out. Only positive connections of different strengths have been established between phosphorus and elements involved in the formation of bone tissue (calcium, magnesium, manganese), copper, iron and strontium. There are two groups of direct interactions of different strengths between the chemical elements associated with phosphorus. Explained supposedly the essence of the connections, which is consistent in the bristle, as the final site of exchange, with organs and tissues of mammals.

Characterization of Bromine and Chlorine Atomic Emission in a Reduced-Pressure Inductively Coupled (27 MHz) Helium Plasma

1985 ◽  
Vol 39 (6) ◽  
pp. 930-935 ◽  
Author(s):  
K. A. Wolnik ◽  
D. C. Miller ◽  
C. J. Seliskar ◽  
F. L. Fricke
Keyword(s):  
Inductively Coupled Plasma ◽  
Gas Flow ◽  
Emission Spectra ◽  
Optical Emission ◽  
Atomic Emission ◽  
Future Application ◽  
Helium Plasma ◽  
Reduced Pressure ◽  
Inductively Coupled ◽  
Quantitative Results

A reduced-pressure 27 MHz inductively coupled plasma (ICP) sustained in helium at low powers (less than 300 W) has been investigated with regard to future application as a selective halogen detector for gas chromatography. The effects of applied power and bulk gas flow rate on neutral and monopositive ionic chlorine and bromine plasma species have been studied. Studies of the optical emission spectra of helium plasmas containing low-molecular-weight organohalogens show that the molecular fragments of the analyte give rise to little radiative background interference. Quantitative results for halogen atomic state populations show that the monopositive species exist in an effectively much hotter plasma environment than the neutral species. A listing of corrected spectral intensities for the most prominent halogen emissions observed from the rf helium plasma over the region 2500 to 7500 Å are given as an appendix.

scholarly journals Thermal and Calorimetric Evaluations of Some Chemically Modified Carbohydrate-Based Substrates with Phosphorus-Containing Groups

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 588 ◽  
Author(s):  
Ananya Thomas ◽  
Paul Joseph ◽  
Khalid Moinuddin ◽  
Haijin Zhu ◽  
Svetlana Tretsiakova-McNally
Keyword(s):  
Solid State ◽  
Inductively Coupled Plasma ◽  
31P Nmr ◽  
Potato Starch ◽  
Analytical Techniques ◽  
Optical Emission ◽  
31P Nmr Spectroscopy ◽  
Icp Oes ◽  
Thermal Stabilities ◽  
Inductively Coupled

In the present article, we report on the chemical modifications of some carbohydrate-based substrates, such as potato starch, dextran, β-cyclodextrin, agar agar and tamarind, by reacting with diethylchlorophosphate (DECP), in dispersions in dichloromethane (DCM), in the presence of triethylamine (TEA) as the base. The modified substrates, after recovery and purification, were analyzed for their chemical constitutions, thermal stabilities and calorimetric properties using a variety of analytical techniques. These included: solid-state 31P NMR, inductively coupled plasma-optical emission spectroscopy (ICP-OES), thermogravimetric analysis (TGA) and pyrolysis combustion flow calorimetry (PCFC). The unmodified counterparts were also subjected to the same set of analyses with a view to serving as controls. Phosphorus analyses, primarily through ICP-OES on the recovered samples, showed different degrees of incorporation. Such observations were optionally verified through solid-state 31P NMR spectroscopy. The thermograms of the modified substrates were noticeably different from the unmodified counterparts, both in terms of the general profiles and the amounts of char residues produced. Such observations correlated well with the relevant parameters obtained through PCFC runs. Overall, the modified systems containing phosphorus were found to be less combustible than the parent substrates, and thus can be considered as promising matrices for environmentally benign fire-resistant coatings.

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