Combined use of total metal content and size fractionation of metal biomolecules to determine the provenance of pine nuts (Pinus pinea)

2007 ◽  
Vol 388 (5-6) ◽  
pp. 1295-1302 ◽  
Author(s):  
J. L. Gómez-Ariza ◽  
A. Arias-Borrego ◽  
T. García-Barrera
Keyword(s):  
Metal Content ◽  
Pinus Pinea ◽  
Size Fractionation ◽  
Total Metal Content ◽  
Total Metal ◽  
Combined Use

Phosphorus sorption and chemical characteristics of lightweight aggregates (LWA)-potential filter media in treatment wetlands

1997 ◽  
Vol 35 (5) ◽  
pp. 103-108 ◽  
Author(s):  
T. Zhu ◽  
P. D. Jenssen ◽  
T. Mæhlum ◽  
T. Krogstad
Keyword(s):  
Sorption Capacity ◽  
Metal Content ◽  
Exchange Capacity ◽  
Chemical Characteristics ◽  
Phosphorus Sorption ◽  
Filter Media ◽  
Total Metal Content ◽  
P Sorption ◽  
P Sorption Capacity ◽  
Total Metal

Five light-weight aggregates (LWAs), suitable for filter media in subsurface flow constructed wetlands, were tested for potential removal of phosphorus (P). P-sorption variation is dependent on the chemical characteristics of the LWA. All LWAs exhibited high pH and high total metal content; however, P-sorption capacity varied by two orders of magnitude. Of the LWAs' chemical characteristics (total metal content, cation exchange capacity, and oxalate soluble Fe and Al), total metal content has the closest relationship with the P-sorption capacity. Among the four major metal ions (Mg, Ca, Fe and Al), Ca has the strongest correlation with the P-sorption capacity.

Evaluation of silicon influence on the mitigation of cadmium-stress in the development of Arabidopsis thaliana through total metal content, proteomic and enzymatic approaches

2017 ◽  
Vol 44 ◽  
pp. 50-58 ◽  
Author(s):  
Josiane M.T. Carneiro ◽  
Katherine Chacón-Madrid ◽  
Rodrigo M. Galazzi ◽  
Bruna K. Campos ◽  
Sandra C.C. Arruda ◽  
...  
Keyword(s):  
Arabidopsis Thaliana ◽  
Metal Content ◽  
Cadmium Stress ◽  
Total Metal Content ◽  
Total Metal

scholarly journals Levels of Trace Elements and Rare Earth Elements in Honey From Jordan

2021 ◽  
Author(s):  
Yahya R Tahboub ◽  
Abd Al-Majeed A. Al-Ghzawi ◽  
Shaker S Al-Zayadneh ◽  
Mohammad S AlGhotani
Keyword(s):  
Trace Elements ◽  
Rare Earth ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Metal Content ◽  
Human Consumption ◽  
Total Metal Content ◽  
Inductively Coupled ◽  
Total Metal ◽  
Plasma Mass Spectrometry

Abstract Honey is a common sweetener in the Jordanian diet with annual consumption of about one thousand tons, two-third of them are imported. It is believed that the elemental profile of honey is an indicator of safety and origin. In the literature, there is a lack of studies concerning levels of trace elements in honey in Jordan. A total 49 elements including 18 rare earth elements (REEs) were analyzed by inductively coupled plasma-mass spectrometry (ICP-MS) in mono-floral, and multi-floral imported honey samples, and multi-floral local samples. Regarding mono-floral samples, Black forest samples has the highest total metal content, while Acasia has the lowest total metal content. Local multi-floral honey has the largest Sr, and total REEs levels, while it has the lowest Mn levels. Very low levels of toxic elements were found in all samples, indicating the safety of honey in Jordan for human consumption. Results of this study showed that advanced statistical models are required to discriminate between multi-floral imported and local honey.

Study of Ti(C,N)-Based Cermets Fabricated by Pressureless-HIP Sintering

2007 ◽  
Vol 280-283 ◽  
pp. 1417-1420
Author(s):  
Xian Juan Ni ◽  
Long Hao Qi ◽  
Wei Wang ◽  
Wei Pan
Keyword(s):  
Mechanical Properties ◽  
Hot Pressing ◽  
Metal Content ◽  
Sintering Temperature ◽  
Pressureless Sintering ◽  
Total Metal Content ◽  
Grain Sizes ◽  
Total Metal ◽  
Metal Contents

In this paper, the Ti(C,N)-based cermets were fabricated with ultrafine Ti(C,N) powders and metal binders Mo and Ni, in which the ratio of Mo to Ni was 1:1 and total metal content ranged from 10wt% to 20wt%. The specimens were first CIP and pressureless sintered at various temperatures ranged from 1450°C to 1600°C and then treated at 1350°C for 20mins by HIP at the pressure of 140MPa. Results revealed that Post-HIP treatment could dramatically improve the density of specimens if their densities after pressureless sintering could reach the required standard. At the same sintering temperature, the grains became finer with increasing metal contents. The grain sizes increased dramatically with increasing sintering temperature from 1550°C to 1600°C. Compared to those obtained by hot pressing, the cermets obtained by pressureless-HIP sintering had better mechanical properties.

Study on Wet Treatment Process of Waste Printed Circuit Boards

2012 ◽  
Vol 518-523 ◽  
pp. 3621-3626
Author(s):  
Cai Bin Wu ◽  
Gui Ming Shi ◽  
Cui Ping Yan
Keyword(s):  
Metal Content ◽  
Printed Circuit Boards ◽  
Treatment Process ◽  
Shaking Table ◽  
Circuit Boards ◽  
Total Metal Content ◽  
Printed Circuit ◽  
Waste Printed Circuit Boards ◽  
Total Metal ◽  
Comminution Process

The dry crushing of wasted printed circuit boards (PCBs) can make secondary contamination. In this paper, a wet comminution process is put forward to solve the difficulties. For the comminution product, the distributions of particle size, liberation degree and metal grade are analyzed, and for the product below 1mm, a wet metal beneficiation process combined with shaking table and flotation is employed. The results show that the Whole PCBs could be comminuted by the MX wet impact crusher, and the cumulative yield, liberation degree, total metal content and its copper grade of the product below 1mm is 83.49%, 97%, 83.46% and 20.50%respectively, and that metal concentrates could be beneficiated by XZY wet shaking table, and the yield, total metal weight, copper grade of the metal concentrate, the recovery of total metal and copper is 34.87%, 88.99%, 50.73%,79.90% and 78.07% respectively keeping the feeding concentration at 20% and water consumption in 1100L/h. For these metals included by shaking-table middling, the separation of both flotation and shaking table is carried out, and the total metal content and its copper grade, recovery in metal concentrate 2′ is 72.07% , 31.59% and62.04% respectively, meanwhile the copper grade of tailings in flotation and shaking table are decreased to 1.26% and 2.94%. The wet treatment process can effectively concentrate these valuable metals from waste PCBs.

Effect of denervation on the total metal content of skeletal muscle

1960 ◽  
Vol 198 (5) ◽  
pp. 943-944 ◽  
Author(s):  
Sumio Shimizu ◽  
Kaname Kuriaki
Keyword(s):  
Heavy Metals ◽  
Skeletal Muscle ◽  
Metal Content ◽  
Pronounced Increase ◽  
Alkaline Metals ◽  
Apparent Increase ◽  
Total Metal Content ◽  
Total Metal ◽  
Calcium Magnesium

Effect of sciatic denervation on the level of potassium, calcium, magnesium, copper and iron in the gastrocnemius of the rat was studied. Following denervation, copper exhibited most pronounced increase in the muscle. Potassium and magnesium did not change at first, but they decreased later; conversely, iron showed initially an apparent increase which became later less obvious. Calcium decreased first, then increased. On the whole, heavy metals appear to be chelated in place of alkaline metals. However, there was also some difference among alkaline metals, calcium behaving somewhat opposite to potassium and magnesium in their chelation.

Assessment of the pseudo total metal content in alluvial sediments from Danube River, Serbia

2010 ◽  
Vol 63 (6) ◽  
pp. 1303-1317 ◽  
Author(s):  
Dubravka Relić ◽  
Dragana Đorđević ◽  
Aleksandar Popović
Keyword(s):  
Metal Content ◽  
Danube River ◽  
Alluvial Sediments ◽  
Total Metal Content ◽  
Total Metal
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