scholarly journals EvaluationofremovalefficiencyofFe(III)andAl(III)ionsinacidsulfate waterusing agarose-basedmagnesiumoxidecomposite

2021 ◽  
Vol 63 (3) ◽  
pp. 30-34
Author(s):  
Ngoc Xuan Dat Mai ◽  
◽  
Tan Le-Hoang Doan ◽  
Le Nguyen Bao Thu ◽  
Bach Thang Phan ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Room Temperature ◽  
Gravimetric Analysis ◽  
Batch Method ◽  
Acid Sulfate ◽  
Composite Adsorbent ◽  
Mgo Nanoparticles ◽  
Inductively Coupled ◽  
Composite Adsorbents ◽  
Icp Mass Spectrometry

Agarose/MgO composite adsorbents were developed through interspersing MgO nanoparticles with agarose to create an absorbent. The elimination capacity of the composite towards iron (Fe), aluminium (Al), and arsenate (As) in acid sulfate water was evaluated by means of batch method at room temperature. The constituents of the composite were characterized by thermal gravimetric analysis (TGA). The removal efficiency was determined through inductively coupled plasma (ICP) mass spectrometry. The composite adsorbent exhibited an excellent adsorption capacity towards three types of ions and heavy metals that are found in acid sulfate water. After treating with agarose/MgO, the concentrations of Fe and Al decreased from 60.28 and 604.84 μg/l, respectively, to under 3.42 and 1.78 μg/l, respectively. These exceptional results reveal the potential uses of agarose/MgO composites as adsorbents in the treatment of acid sulfate water.

Zinc kinetics in preterm infants: a compartmental model based on stable isotope data

1996 ◽  
Vol 271 (5) ◽  
pp. R1452-R1459 ◽  
Author(s):  
M. E. Wastney ◽  
P. Angelus ◽  
R. M. Barnes ◽  
K. N. Subramanian
Keyword(s):  
Stable Isotope ◽  
Preterm Infants ◽  
Inductively Coupled Plasma ◽  
Compartmental Analysis ◽  
Atomic Emission ◽  
Fecal Excretion ◽  
Emission Spectrometry ◽  
Zinc Intake ◽  
Inductively Coupled ◽  
Icp Mass Spectrometry

Zinc is an essential nutrient for growth; however, little is known about zinc kinetics (absorption, distribution, and excretion) in preterm infants (< 38-wk gestation). Zinc kinetics were studied in two preterm infants (gestational ages, 32 and 33 wk) following oral or intravenous administration of a stable isotope (70Zn). Plasma, red blood cells (RBC), urine, and feces were sampled for up to 30 days. Isotope enrichment was measured in tissues by inductively coupled plasma (ICP)-mass spectrometry, and zinc was determined by ICP-atomic emission spectrometry. Data were analyzed by compartmental analysis using SAAM31. Zinc intake increased during the studies, and, because body zinc was not in steady state, both tracer (70Zn) and tracee (Zn) data were fitted using analogous models. A model for adults [M. E. Wastney, R. L. Aamodt, W. F. Rumble, and R. I. Henkin. Am. J. Physiol. 251 (Regulatory Integrative Comp. Physiol. 20): R398-R408, 1986] was modified to fit data from the preterm infants. RBC data were fitted using one compartment (vs. 2 in adults), and an adult RBC subsystem was included in the model to account for zinc introduced during blood transfusions. Exchange of zinc between compartments that were not sampled was based on zinc distribution in neonates. Absorption was 42 and 34%, and endogenous fecal excretion, based on intravenous data, was 15 micrograms.kg-1.day-1. The model can be used to quantify changes in zinc kinetics of preterm infants with age, weight, and zinc intake for evaluating nutritional requirements with growth.

scholarly journals Nanoplastic Labelling with Metal Probes: Analytical Strategies for Their Sensitive Detection and Quantification by ICP Mass Spectrometry

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7093
Author(s):  
Lucile Marigliano ◽  
Bruno Grassl ◽  
Joanna Szpunar ◽  
Stéphanie Reynaud ◽  
Javier Jiménez-Lamana
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Analytical Techniques ◽  
Inductively Coupled ◽  
Advantages And Disadvantages ◽  
Promising Tool ◽  
Icp Ms ◽  
Analytical Strategies ◽  
Icp Mass Spectrometry ◽  
Detection And Quantification

The detection and quantification of nanoplastics in aquatic environments is one of the major challenges in environmental and analytical research nowadays. The use of common analytical techniques for this purpose is not only hampered by the size of nanoplastics, but also because they are mainly made of carbon. In addition, the expected concentrations in environmental samples are below the detection limit of the majority of analytical techniques. In this context, the great detection capabilities of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) in its Single Particle mode (SP-ICP-MS) have made of this technique a good candidate for the analysis of nanoplastics. Since the monitoring of carbon by ICP-MS faces several difficulties, the use of metal tags, taking advantage of the great potential of nanoplastics to adsorb chemical compounds, has been proposed as an alternative. In this perspectives paper, three different strategies for the analysis of polystyrene (PS) nanoplastics by SP-ICP-MS based on the use of metals species (ions, hydrophobic organometallic compound, and nanoparticles) as tags are presented and discussed. Advantages and disadvantages of each strategy, which rely on the labelling process, are highlighted. The metal nanoparticles labelling strategy is shown as a promising tool for the detection and quantification of nanoplastics in aqueous matrices by SP-ICP-MS.

Comparing the Physico-Chemical Characteristics of Formulated and Marketed Yashada Bhasma

2021 ◽  
pp. 6392-6398
Author(s):  
Nitu Bhatnagar ◽  
Avani Pareek
Keyword(s):  
Inductively Coupled Plasma ◽  
Thermo Gravimetric Analysis ◽  
Human Consumption ◽  
Chemical Characteristics ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Inductively Coupled ◽  
Physico Chemical ◽  
The Difference

The present study is aimed to observe the difference in the Physico-Chemical characteristics of the marketed and formulated bhasma samples through X-Ray Diffraction analysis (XRD), Dynamic Light Scattering (DLS), Zeta potential, Thermo-Gravimetric analysis (TGA), Scanning Electron Microscopy (SEM) and Energy Dispersive X-Ray analysis (EDAX), apart from organoleptic methods. Inductively Coupled Plasma Mass Spectroscopy (ICPMS) analysis was also done to observe the presence of trace and heavy metals so that the safety of all these samples could be ensured. XRD shows variation in oxide nature of zinc as well crystallite size in all bhasma samples. DLS and SEM results show difference in particle size of marketed bhasma samples as compared to formulated Yashada bhasma. EDAX and ICPMS also confirm the alteration in elemental composition of all these bhasma samples. Thus, it can be concluded that these ayurvedic medicines should be prepared strictly using the formulation methods as mentioned in the Ayurvedic texts. This will help the prepared products to adopt the inherent quality of the ancient system of medicine, which shall be useful and devoid of any side effects for human consumption.

scholarly journals Crystal Chemistry and Luminescence Properties of Eu-Doped Polycrystalline Hydroxyapatite Synthesized by Chemical Precipitation at Room Temperature

Crystals ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 250 ◽  
Author(s):  
Francesco Baldassarre ◽  
Angela Altomare ◽  
Nicola Corriero ◽  
Ernesto Mesto ◽  
Maria Lacalamita ◽  
...  
Keyword(s):  
Fourier Transform ◽  
High Temperature ◽  
Inductively Coupled Plasma ◽  
Room Temperature ◽  
Annealing Temperature ◽  
Chemical Precipitation ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Inductively Coupled

Europium-doped hydroxyapatite Ca10(PO4)6(OH)2 (3% mol) powders were synthesized by an optimized chemical precipitation method at 25 °C, followed by drying at 120 °C and calcination at 450 °C and 900 °C. The obtained nanosized crystallite samples were investigated by means of a combination of inductively coupled plasma (ICP) spectroscopy, powder X-ray diffraction (PXRD), Fourier Transform Infrared (FTIR), Raman and photoluminescence (PL) spectroscopies. The Rietveld refinement in the hexagonal P63/m space group showed europium ordered at the Ca2 site at high temperature (900 °C), and at the Ca1 site for lower temperatures (120 °C and 450 °C). FTIR and Raman spectra showed slight band shifts and minor modifications of the (PO4) bands with increasing annealing temperature. PL spectra and decay curves revealed significant luminescence emission for the phase obtained at 900 °C and highlighted the migration of Eu from the Ca1 to Ca2 site as a result of increasing calcinating temperature.

Preparation and Characterization of Natural Hydroxyapatite from Animal Hard Tissues

2007 ◽  
Vol 342-343 ◽  
pp. 213-216 ◽  
Author(s):  
Xiao Ying Lü ◽  
Yong Bin Fan ◽  
Dachun Gu ◽  
Wei Cui
Keyword(s):  
Inductively Coupled Plasma ◽  
Gravimetric Analysis ◽  
X Ray Diffraction ◽  
Human Teeth ◽  
Inductively Coupled ◽  
Biological Source ◽  
Prepared Material ◽  
Different Temperatures ◽  
Natural Hydroxyapatite

The purpose of this study is to find out an effective method to prepare natural hydroxyapatite (HA) from biological source, i.e., pig bones, pig teeth, and extracted human teeth. For the preparation of natural HA a calcining method with different temperatures was used, in combination with the thermal gravimetric analysis (TGA). Three analysis methods, i.e., Fourier transform infrared spectroscope (FTIR), X-ray diffraction (XRD), and inductively coupled plasma (ICP) have been used to investigate the characteristics of the prepared materials. The spectrum of the prepared material, obtained by means of FTIR and XRD, are consistent with the standard FTIR spectrum and JCPDS index of XRD of hydroxyapitite. It confirms that the material prepared is hydroxyapitite indeed. The natural HA obtained by calcining at 850°C shows a desired quality.

Intercalation of basic amino acids into layered zirconium proline-N-methylphosphonate phosphate

2011 ◽  
Vol 65 (5) ◽  
Author(s):  
Ren-Quan Zeng ◽  
Xiang-Kai Fu ◽  
Xin-Bin Yang
Keyword(s):  
Amino Acids ◽  
Inductively Coupled Plasma ◽  
Room Temperature ◽  
Plasma Analysis ◽  
X Ray ◽  
Basic Amino Acids ◽  
Inductively Coupled ◽  
Ft Ir ◽  
Xrd Patterns ◽  
Ir And Raman

AbstractIntercalation of basic amino acids into layered zirconium proline-N-methylphosphonate phosphate (α-ZPMP) was investigated at room temperature. Three kinds of host-guest compounds were prepared and characterised by elemental analysis, inductively coupled plasma analysis (ICP), Fourier transform infrared spectrum (FT-IR), Raman spectrum, X-ray powder diffraction (XRD) and thermoanalysis. The interaction of amino acid guests with P-OH of α-ZPMP host was documented by FT-IR and Raman spectra. In addition, the XRD patterns indicated that l-arginine or l-lysine were intercalated into the interlayer galleries of α-ZPMP host; the interlayer distances of the Larginine and l-lysine intercalation compounds were expanded from 1.520 nm to 2.218 nm and 2.207 nm, respectively. l-arginine and l-lysine would be arranged as a mono-molecule layer in different orientations. The interlayer distance of l-histidine (d = 1.522 nm) was similar to that of α-ZPMP host (d = 1.520 nm), l-histidine might be adsorbed on the outer surface of the α-ZPMP host. Thermoanalysis showed that the intercalated l-arginine and l-lysine were removed at 110–305°C or 150–250°C, respectively, the adsorbed l-histidine was released at a temperature of up to 320°C.

A More Accurate Molar Mass of Silicon via High Resolution MC-ICP-Mass Spectrometry

2014 ◽  
Vol 228 (4-5) ◽  
Author(s):  
Axel Pramann ◽  
Olaf Rienitz ◽  
Janine Noordmann ◽  
Bernd Güttler ◽  
Detlef Schiel
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Inductively Coupled Plasma ◽  
Molar Mass ◽  
Silicon Crystal ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Icp Mass Spectrometry

AbstractHigh resolution multicollector inductively coupled plasma mass spectrometry (HR-MC-ICP-MS) was applied for the determination of the isotopic composition and molar mass of a silicon crystal material (“Si28”) highly enriched in the

Improvement of Hydrogenation and Dehydrogenation Kinetics on MgH2 by the Catalytic Effect of ZrO2

2011 ◽  
Vol 117-119 ◽  
pp. 1195-1198
Author(s):  
Liang Zeng ◽  
Toru Kimura ◽  
Satoshi Hino ◽  
Hiroki Miyaoka ◽  
Takayuki Ichikawa ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Room Temperature ◽  
Catalytic Effect ◽  
Atomic Emission ◽  
Hydrogen Desorption ◽  
Milling Process ◽  
Spectroscopy Analysis ◽  
Inductively Coupled ◽  
Dehydrogenation Kinetics ◽  
Kinetics Of

Hydrogen desorption temperature of MgH2, which was milled with 20 pieces of ZrO2 balls for 20 h, was decreased to 240 °C, although steel−ball−milled MgH2 required more than 350 °C. Moreover, the completely dehydrogenated product was able to absorb hydrogen of ~3.5 mass% even at room temperature under 1 MPa hydrogen within 5 hours. Inductively coupled plasma−atomic emission spectroscopy analysis revealed zirconium element was doped into MgH2 from the ZrO2 balls during the milling process. Therefore, it was concluded that the presence of ZrO2 improved the kinetics of the hydrogenation and dehydrogenation behaviors of MgH2.

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