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Tytuł:
Age-dependent changes in the calcium concentration in womens bones and teeth
Autorzy:
Fischer, A.
Brodziak-Dopierala, B.
Stojko, J.
Powiązania:
https://bibliotekanauki.pl/articles/1192510.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
calcium
bones
teeth
AAS
Opis:
The inorganic part of bone tissue is mainly composed of Ca. In adult people, the resorption processes lead to the removal of minerals from calcified tissues. Women’s bodies are particularly vulnerable to a decrease in the concentration of Ca because the osteolysis processes that occur with age are compounded by hormonal changes during the menopause. The aim of the study was to determine the age-dependent concentration of Ca in the bones and teeth of adult women. The object of the research was calcified tissues bones and teeth (n=323). Samples were taken from women aged 26 - 85 years (mean: 55.7 years), living in Poland, in the Silesian Province. Samples were submitted to wet microwave mineralization (spectrally pure nitric acid). The Ca concentration in teeth and bones was determined with the AAS method. The concentration of Ca in the tested samples of calcified tissues from women aged 26 - 85 years was 10.1‑32.0%, and the average concentration was 16.7±3.5% in bones and 22.2±4.7% in teeth. The calcified tissues, from both bones and teeth, show a progressive decrease in the Ca concentration that occurs as women age. The decreasing level of Ca in bone and teeth was statistically significant (p<0.05). There was a difference in what age calcium is released from bones and teeth. The research showed that a decrease in the Ca concentration in bone tissue occurs earlier than it happens in teeth (about 10 years). The decrease in the Ca concentration in calcified tissues of teeth was slight greater than in bones, indicating slightly greater mobilization of Ca from the tissues of teeth.
Źródło:
Journal of Elementology; 2020, 25, 4; 1319-1331
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of Nutrient Elements in Cucurbita pepo Using Atomic Absorption Spectrometry
Autorzy:
Harichan, S.
Verma, V.N.
Powiązania:
https://bibliotekanauki.pl/articles/411957.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AAS
Cucurbita pepo
metals
Opis:
There are a number of factors to keep our health in good condition. One of them is the role of the proper amount of nutrient metals which play the important role in many reactions in the body and it becomes increasingly evident that keeping a balance level of nutrient metals in every organ is very important for maintaining a healthy body, although metals comprise only a fraction of total body weight (mg). They play crucial role for many body functions in the metabolic regulations of the human body including transporting oxygen, normalizing the nervous system. The present investigation is focused to find out the different nutrient metals that exist in the vegetable Cucurbita pepo (squash) a source of natural nutrient metals abandance and to determine the relative concentration of each metal element. Investigation has been performed on the skin, the flesh, the seed, the leaves, the stems and the roots of squash to determine the relative levels of concentrations of various metals such as elements such as Al, Ca, Cd, Co,Cr, Fe,K, Mg, Mn, Na, Ni, Pb and Zn. The Atomic Absorption Spectrometry technique is used. The proper vegetable consumption can improve the mineral and trace metal regulation and reduce cardiovascular diseases and certain cancer risks.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 2; 11-17
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spectroscopic Investigation of the Hair of Diabetic Patients
Autorzy:
Ali, A.
Verma, N.V.
Powiązania:
https://bibliotekanauki.pl/articles/412256.pdf
Data publikacji:
2013
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
diabetes
metals
hair
AAS
Opis:
Diabetes is a major disease condition that is accountable for 5% of annual cause of death globally and it continues to escalate. In this research the levels of minerals in persons with type 2 diabetes were investigated using hair as the biopsy specimen. The philosophy behind is that minerals are involved in countless metabolic functions in all phases of the life process, an imbalance of which can have widespread implication, while hair due to its physiology serves an invaluable record of the body's exposure to minerals. Hair metal testing is a fascinating new diagnostic tool and often gives unexpected clues to mineral imbalances in the body. In executing the research samples of head hair collected from 6 type 2 diabetic patients were washed to remove exogenous contaminants, then subjected to open vessel acid digestion and subsequent analysis for the elements Ca, Cd, Cr, Cu Fe, K, Mg, Na and Zn using Flame Atomic Absorption Spectroscopy (FLAAS). After comparing the concentration of the elements to a range that is considered to be normal it was found that Ca, Zn, Fe, Mg, K, Cu, Cd and Cr were off range while Na was normal. Upon investigating the function and effects of the elements that were off range it was found that a deficiency of chromium and an excess of iron could be a possible cause of diabetes.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2013, 3; 37-45
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Chemical Study of Calotropis
Autorzy:
Verma, V. N.
Powiązania:
https://bibliotekanauki.pl/articles/412601.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Calotropis
Madar
AAS
metals
Opis:
Calotropis (Asclepiadaceae) commonly known as “madar” is a useful medicinal plant. The two species i.e. Calotropis gigantea and Calotropis procera are to a great extent having a very similar chemical properties, but the colours of their flowers are different. The pH of latex of these two species has been found different in the present study. The temperature effects have been noticed on their pH values which is varying from 7.2 to 8.1 between the temperatures 25 °C to 45 °C and then remains constant for Calotropis gigantia. The milky latex contains hydrocarbons, fatty acids, sterols and terpenels. Seven spots have been observed on the TLC plates; out of which 3 were identified as calotoxin, uscharin and calactin. Aluminum, calcium, cadmiun, cobalt, chromium, copper, iron, magnese, magnesium, nickel, lead, and zinc metal elements were investigated in the latex and similarly in the leaves and bark from the AA spectra. The amount of magnese was found the highest in the latex of both species but calcium was found highest in leaves and bark of both species. Copper, chromium and lead were not found at all in latex but a very little amount of copper and lead were found in leaves and bark. The atomic absorption spectrophotometer was used to investigate the metals which were measured in the order of ppm.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 1; 74-90
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photochemical investigation of Abelmochus esculentus
Autorzy:
Verma, Vishwa Nath
Powiązania:
https://bibliotekanauki.pl/articles/1118240.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AAS
Abelmochus esculentus
Nutrients
Okra
Opis:
Okra is an edible fruit that is commonly known as a vegetable. It is available in most parts of the world generally throughout the year. The scientific name of okra is ‘Abelmochus esculentus or Hibiscus esculentus. The different varieties of this fruit are reflected in variation in shape, size and, more importantly, taste. Okra is known by different local names in different countries. Since okra has very interesting nutritional properties, it has attracted research. In the present study, attention has been paid to investigate the nutrients it holds that are essential for a healthy body. Flame absorption spectrophotometer was used to ascertain Ca, Cr, Cu, Fe, Mg, Mn, Pb, and Zn content. The amount of calcium was found highest at 4582.85 mg/kg, 1067.23 mg/kg and 1816.37 mg/kg in raw pod flesh, unripened seeds and ripened seeds, respectively. Pb and Cr were not detected at all, while the highest value of nitrogen (4.32%) was found in unripened pods.
Źródło:
World News of Natural Sciences; 2017, 9; 45-51
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of Heavy Metal Concentration of Groundwater in Veppanthattai Block, Perambalur District, Tamil Nadu
Autorzy:
Ibraheem, A. Mohamed
Mazhar Nazeeb Khan, S. M.
Powiązania:
https://bibliotekanauki.pl/articles/1113912.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AAS
Groundwater
Heavy metal
Veppanthattai
WHO
Opis:
The current study was aimed to find out the heavy metal concentration of groundwater in the Veppanthattai block. Here, 45 water samples from different sites were collected during the year 2015 at post monsoon, and Cd, Cr, Cu, Fe, Ni, Pb and Zn heavy metal content was analyzed using an atomic absorption spectrophotometer (AAS), The obtained results were then compared with the WHO standard for the specific highest pollution level. Accordingly, some or all water samples are above the permissible limit, particularly for Cd metal (all samples). The elevated concentration of cadmium in water samples of the study area may be due to agricultural runoff, as pesticides and cadmium-containing fertilizer have been used. The study showed that without proper treatment, the groundwater of the study area is not suitable for domestic applications.
Źródło:
World News of Natural Sciences; 2017, 12; 21-26
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photochemical Studies of Solanum Melangena (Eggplant) Fruit by Flame Atomic Absorption Spectrometry
Autorzy:
Persid, R.
Verma, V. N.
Powiązania:
https://bibliotekanauki.pl/articles/411552.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
solanum melangena
Eggplant
elemental analysis
AAS
Opis:
Solanum melangena (eggplant) belongs to Solanaceae family. The common name of this frui and the plant is the same. It has different names in different countries such as eggplant, brinjal, baigan, balangie etc. Eggplant has been reported as a healthiest fruit due to the chemical constituents. The shape, size and colour of the fruits are also different. The genetically engineered eggfruits are also available. Some research works on eggplant are reported in different countries for different purposes. The present study has been taken into an account for the chemical elements present in flesh, skin and the seeds of eggplant grown in the soil and environmental conditions of Guyana. The investigation by the flame atomic absorption photometry shows the presence of Ca, Cd, Co, Cu, Fe, Mg, Mn, Pb and Zn at a varying concentrations in flesh, skin and seeds. In general the presence of calcium and magnesium as the higher values out of which concentration of calcium is 1366mg/kg in skin and magnesium as 2466 mg/Kg in seed.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 20, 2; 211-218
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photochemical studies of Eichhornia crassipes (Water Hyacinth)
Autorzy:
Ratan, A.
Verma, V. N.
Powiązania:
https://bibliotekanauki.pl/articles/412466.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Water Hyacinth
Eichhornia crassipes
AAS
Elements
metals
Opis:
Eichhornia crassipes is a floating macrophyte. It is capable of assimilating large quantities of toxic metals, some of which are essential for plant growth. Water Hyacinth grows rapidly in water with a high level of nutrients like nitrogen and phosphorous. The plants have been shown to absorb trace elements such as Silver (Ag), Lead (Pb), Cadmium (Cd) and Copper (Cu) reported by Lu et al [1]. The purpose of this study is to determine the distribution of heavy metals in different parts of the Water Hyacinth . Such a detail study has been taken for the first time. It is expected that the metal distribution within the plant species would be a representation of the concentration and distribution of the water in which it is found. Plants have the ability to accumulate non-essential and essential trace elements and this ability could be harnessed to remove pollutant metals from the environment. Aluminum, cadmium, calcium, copper, iron, lead, magnesium and zinc have been found in different amounts in roots, stems , leaves and flowers.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 11, 3; 214-222
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Elemental analysis of Citrullus colocynthis (L.) using atomic absorption spectrometer
Autorzy:
Verma, Vishwa Nath
Powiązania:
https://bibliotekanauki.pl/articles/1178049.pdf
Data publikacji:
2018
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AAS
Citrullus colocynthis L
Elemental analysis
Watermelon
Opis:
Citrullus colocynthis (L.) Schrad. (Watermelon) belongs to Cucurbitaceae family. Watermelon can be correctly referred as either fruit or vegetable. The watermelon has attracted attention of many researchers due to various kinds of its medicinal properties. A watermelon has basically four parts as rind, white flesh, red flesh and seed. There are a number of varieties of watermelon in which the central ripped part may be dark red, light red, pink, or yellow. The new variety is watermelon is also available without seed or very few seed called seedless watermelon. In the present investigation the dark red flesh variety of watermelon was chosen. Ca, Cu, Fe, Mg, Mn and Zn were investigated in rind, white flesh, dark red flesh and seed. It was found interesting that the amount of calcium (Ca) in all these four parts was very high and highest in the white flesh (unripped) of watermelon.
Źródło:
World Scientific News; 2018, 95; 64-74
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ mineralizacji próbki odcieków składowiskowych na wyniki oznaczeń niklu i cynku uzyskane metodą AAS
Influnce of landfill effluents mineralization for Ni and Zn determination by the AAS method
Autorzy:
Gawdzik, J.
Powiązania:
https://bibliotekanauki.pl/articles/126186.pdf
Data publikacji:
2009
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
mineralizacja
metale ciężkie
AAS
mineralization
heavy metals
Opis:
Przedstawiono badania zawartości metali ciężkich w złożonych matrycach środowiskowych. Celem badań było porównanie wpływu zastosowanej metody mineralizacji na wyniki zawartości Ni oraz Zn w odciekach pobranych ze składowiska odpadów komunalnych w Barczy.
Results of investigation metals concentration in complicated environmental matrix were presented. Aim of researches conducted by author were comparing an influence of used mineralization methods with chosen heavy metals (Ni, Zn) in outflows from inactive landfill Barcza near Kielce on received results.
Źródło:
Proceedings of ECOpole; 2009, 3, 2; 457-460
1898-617X
2084-4557
Pojawia się w:
Proceedings of ECOpole
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Trend of Drug Abuse in 2011– 2014 in Italy
Autorzy:
Sacco, Alessia
Macchiarella, Alessandra
Amato, Alessandra
La Commare, Daniele
Contrò, Valentina
Proia, Patrizia
Powiązania:
https://bibliotekanauki.pl/articles/1055216.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
Tematy:
AAS
diuretics
drug abuse
glucocorticoids
physical health
stimolants
Opis:
Doping, although was born as a medication and not with the purpose of enhancing performance, is a widespread practice in all sports, between amateur and gym-goers. The Italian sports federations were in second place worldwide for positive doping-test, after Russia. This review focuses on the analysis of data collected by Italian National Olympic Committee (CONI) in the 2012–2014 period, showing that the most commonly used substances were anabolic androgenic agents, glucocorticoids, diuretics and stimulants. Prevention in doping could be a key to limit the damage caused by this harmful practice both, for the physical health and the athlete’s moral integrity and anti-doping campaigns should be direct as much as possible to young people, since about two-thirds of adolescents appear to be dissatisfied with their body. Even coordination between the various professionals that surround athletes could help fight doping by planning specific training and adapted to the individual athlete, taking into account the actual physical limitations and physical features of each.
Źródło:
Central European Journal of Sport Sciences and Medicine; 2017, 19, 3; 77-84
2300-9705
2353-2807
Pojawia się w:
Central European Journal of Sport Sciences and Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Chemical Composition and Quantitative Elemental Investigation of Bitter Melon
Autorzy:
Verma, Vishwa N.
Powiązania:
https://bibliotekanauki.pl/articles/1193971.pdf
Data publikacji:
2015
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
AAS
Bitter melon
Elements
Karaila
Momordica charantia
Nutrients
Opis:
Researchers have found many interesting properties of bitter melon and therefore attracted many others on its studies. Bitter melon belongs to cucurbitacea family and momordica genus. Bitter melon is used for human consumption all over the world in different forms such as a vegetable and /or medicine. Some of the research work has been done on the fruits, its seeds and leaves but the other parts such as tissues has not been studied. The present study is an extensive investigation of the quantitative elements for Ca, Cd, Co, Cr, Cu, Fe, Mg, Mn, Pb, Zn, K, N, and P of the fruit- skin, fruit-flesh, fruit-seed, tissue skin, leaf and root of bitter melon for the first time using flame atomic absorption spectrometry. The results show a quite good variation of the concentration of the elements in different part of the fruit and the tissue.
Źródło:
World Scientific News; 2015, 16; 64-74
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Photochemical investigation of elements in Oryza sativa
Autorzy:
McKenzie, Feanna
Verma, Vishwa N.
Powiązania:
https://bibliotekanauki.pl/articles/1192076.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Oryza Sativa
Rice Grains
Human Consumption
Trace Elements
AAS
Opis:
Short white rice grains produced locally from Mahaica, Guyana were collected from the rice farm and analyzed for ten trace elements by flame atomic absorption spectrometer. The concentrations of the trace elements investigated are as follows: - Ca (76.81), Mg (54.30), Fe (28.2), Cu (4.90), Zn (71.16) and Mn (14.33) mg/Kg. There had been controversial reports about the toxic elements normally present in the rice produced in different areas and conditions. The other four toxic elements As, Co, Pb and Al were also analyzed but not detected. With reference to the literature on the maximum daily intakes for human consumption, the concentration levels were all below the literature except for zinc and manganese
Źródło:
World Scientific News; 2016, 37; 50-60
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Quantitative and qualitative analysis of slags from zinc and lead metallurgy
Autorzy:
Nocoń, Milena
Korus, Irena
Loska, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/27311569.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
heavy metal slags
BCR sequential extraction
zinc and lead metallurgy
AAS
Opis:
The zinc and lead industry generates substantial quantities of waste. Among the many types of wastes, such as dust or liquid, a large proportion are solid waste such as slags. The purpose of the study was the qualitative and quantitative assessment of the short rotary kiln slags and slags deposited in a hazardous waste landfill originating from zinc and lead metallurgy. This assessment represents the primary step in evaluating materials such as slags concerning their potential for substantial applications, such as process for metal separation. Additionally, this evaluation forms the basis for a comprehensive environmental study. The concentrations of the four predominant metals – Fe>Pb>Zn>Cu – and accompanying elements – Na>Ca>K>Ni>Mn>Cr – were determined using atomic absorption spectroscopy (AAS) after aqua regia digestion. A large variation was found in the phase analysis of the studied materials based on SEM, XRD, X-ray microanalysis, and BCR sequential extraction. The BCR analysis revealed the occurrence of major metals in four different fractions: acid-soluble, reducible, oxidizable, and residual. Pb was mainly present in the acid-soluble fraction, while Fe, Cu, and Zn were present in the residual fraction.
Źródło:
Archives of Environmental Protection; 2023, 49, 3; 26--37
2083-4772
2083-4810
Pojawia się w:
Archives of Environmental Protection
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Georadar investigations and geochemical analysis in contemporary archeological studies
Autorzy:
Łyskowski, M.
Wardas-Lasoń, M.
Powiązania:
https://bibliotekanauki.pl/articles/184685.pdf
Data publikacji:
2012
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
sewage
Old Town of Cracow
moat
GPR
echograms
AAS
heavy metals
Opis:
Archeological studies require a precise and interdisciplinary approach. Use of the noninvasive methods in urban area investigations is expected because they do not result in any changes in land architecture plans. Very good combination fulfilling such demands are geochemical analyses of: pH, Eh, conductivity and heavy metals concentrations in soils and the results of the ground penetrating radar method. These methods allow for a more precise selection of places of interest and can be also used for a more accurate calibration and better interpretation of subsequent results. Proposed methodology gives good final results thanks to complementarity of each method and can be used under variable conditions.
Źródło:
Geology, Geophysics and Environment; 2012, 38, 3; 307-315
2299-8004
2353-0790
Pojawia się w:
Geology, Geophysics and Environment
Dostawca treści:
Biblioteka Nauki
Artykuł
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