Trace and minor elements in galena: A reconnaissance LA-ICP-MS study

The purpose of this study was to characterize some types of biomass wastes resulted from different activities such as: agriculture, forestry and food industry using thermogravimetric and ICP-MS analyses. Also, it was optimized an ICP-MS method for the determination of As, Cd and Pb from biomass ash samples. The ICP-MS analysis revealed that the highest concentration of metals (As, Cd, Pb) was recorded in the wood waste ash sample, also the thermogravimetric analysis indicated that the highest amount of ash was obtained for the same sample (26.82%). The biomass wastes mentioned in this study are alternative recyclable materials, reusable as pellets and briquettes. Keywords: ash, biomass, ICP-MS, minor elements, TG

Download Full-text

Trace and minor elements in Woodbine sub-surface waters of the East Texas basin

Geochimica et Cosmochimica Acta ◽

10.1016/0016-7037(60)90074-0 ◽

1960 ◽

Vol 20 (3-4) ◽

pp. 199-214 ◽

Cited By ~ 1

Author(s):

F.A. Brooks

Keyword(s):

Surface Waters ◽

East Texas ◽

Minor Elements ◽

East Texas Basin ◽

Trace And Minor Elements

Download Full-text

No ion is an island: Multiple ions involved during boron incorporation into CaCO3

10.5194/egusphere-egu21-10652 ◽

2021 ◽

Author(s):

Michael Henehan ◽

Christa Klein-Gebbinck ◽

Gavin Foster ◽

Jill Wyman ◽

Mathis Hain ◽

...

Keyword(s):

Calcium Carbonate ◽

Isotope Fractionation ◽

Isotope Composition ◽

Boron Isotope ◽

Minor Role ◽

Growth Mechanisms ◽

Minor Elements ◽

Vital Effects ◽

Biogenic Carbonates ◽

Trace And Minor Elements

Boron isotope ratios, as measured in marine calcium carbonate, are a proven tracer of past seawater and calcifying fluid pH and thus a powerful tool for the reconstruction of past atmospheric CO2 and monitoring of coral physiology. For such applications, understanding the inorganic baseline upon which foraminiferal vital effects or coral pH upregulation are superimposed should be an important prerequisite. Yet, investigations into boron isotope fractionation in synthetic CaCO3&#160;polymorphs have often reported variable and even conflicting results, implying that we may not fully understand pathways of boron incorporation into calcium carbonate. &#160;Here we address this topic with experimental data from calcite and aragonite precipitated across a range of pH in the presence of both Mg and Ca. We confirm the results of previous studies that the boron isotope composition of inorganic aragonite precipitates closely reflects that of aqueous borate ion, but that calcites display a higher degree of scatter, and diverge from the boron isotope composition of borate ion at low pH. We discuss these findings with reference to the simultaneous incorporation of other trace and minor elements, and highlight a number of mechanisms by which crystal growth mechanisms may influence the concentration and isotope composition of boron in CaCO3. In particular, we highlight the potential importance of surface electrostatics in driving variability in published synthetic carbonate datasets. Importantly for palaeo-reconstruction, however, these electrostatic effects are likely to play a much more minor role during natural precipitation of biogenic carbonates.

Download Full-text

Studies on some trace and minor elements in blood

Biological Trace Element Research ◽

10.1007/bf02785290 ◽

1997 ◽

Vol 57 (3) ◽

pp. 207-221 ◽

Cited By ~ 4

Author(s):

T. R. Mahalingam ◽

S. Vijayalashmi ◽

R. Krishna Prabhu ◽

A. Thiruvengadasami ◽

K. S. R. Murthy ◽

...

Keyword(s):

Minor Elements ◽

Trace And Minor Elements

Download Full-text

Nutrient Analysis of Some Commercially Important Molluscs of Bangladesh

Journal of Scientific Research ◽

10.3329/jsr.v2i2.3362 ◽

2010 ◽

Vol 2 (2) ◽

pp. 390-396 ◽

Cited By ~ 18

Author(s):

R. L. Baby ◽

I. Hasan ◽

K. A. Kabir ◽

M. N. Naser

Keyword(s):

Nutrient Content ◽

Proximate Analysis ◽

Nutrient Analysis ◽

Minor Elements ◽

Crude Fiber Content ◽

Pila Globosa ◽

Calcium Phosphorus ◽

Commercially Important ◽

Trace And Minor Elements ◽

Supplementary Feed

This proximate study was carried out to determine the nutrient content of six commercially important molluscs. The selected molluscan species were Pila globosa, Bellamya bengalensis, Melania tuberculata, Lamellidens marginalis, Anisus convexiusculus and Helix sp. These species were assessed for their proximate and mineral compositions designed to establish their nutritive values on the wet weight basis. The analysis of muscles revealed that the composition of crude protein varied from 8.272%±0.05% in Pila globosa to 12.927%±0.57% in Anisus convexiusculus, moisture content varied from 74.6%±0.04% in Melania tuberculata to 85.9%±0.68% in Lamellidens marginalis and in case of ash content it varied from 1.036%±0.02% in Pila globosa to 4.607%±0.01% in Anisus convexiusculus. Carbohydrate content varied from 2.902±0.03% in Pila globosa and 7.566%±0.37% in Melania tuberculata. The fat and crude fiber content was marginally small in all of the species. The concentrations of calcium, phosphorus, iron, sodium and potassium in the flesh and shells of the molluscs were determined. It becomes pretty clear that molluscs are excellent sources of some required trace and minor elements needed for the proper growth and development of human being and can also be used as high-nutrient supplementary feed for domestic animals, birds and even for fish culture. Keywords: Freshwater; Snails; Proximate analysis; Nutrition; Minerals. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.DOI: 10.3329/jsr.v2i2.3362 J. Sci. Res. 2 (2), 390-396 (2010)

Download Full-text

Interlaboratory and Interinstrumental Spectrochemical Precision: Comparison of dc Carbon Arc Optical Emission Spectrographic, Atomic Absorption, and X-ray Fluorescence Spectrometric Procedures

Applied Spectroscopy ◽

10.1366/000370276774457173 ◽

1976 ◽

Vol 30 (3) ◽

pp. 335-343 ◽

Cited By ~ 6

Author(s):

Isaac B. Brenner ◽

L. Gleit ◽

A. Harel

Keyword(s):

Atomic Absorption ◽

Optical Emission ◽

X Ray ◽

Minor Elements ◽

Accuracy And Precision ◽

Spectrographic Method ◽

Carbon Arc ◽

The Common ◽

Trace And Minor Elements

A cooperative investigation has been performed to test long-term interlaboratory and interinstrumental accuracy and precision of a dc carbon arc optical emission spectrographic method for determining the common trace and minor elements in silicate rocks and minerals. Comparisons are made with determinations by atomic absorption and X-ray fluorescence spectrometric procedures to indicate agreement or bias of the analytical results, and the presence of systematic errors.

Download Full-text