COMPOSITION AND METAL CONTENTS OF ORE-FORMING FLUIDS OF THE KALGUTY Mo-W(Be) DEPOSIT (Gorny Altai)

2016 ◽  
Vol 57 (4) ◽  
Keyword(s):  
Metal Contents ◽  
Gorny Altai

Composition and metal contents of ore-forming fluids of the Kalguty Mo–W(Be) deposit (Gorny Altai)

2016 ◽  
Vol 57 (4) ◽  
pp. 507-518 ◽  
Author(s):  
A.A. Borovikov ◽  
V.A. Goverdovskiy ◽  
A.S. Borisenko ◽  
N.V. Bryanskiy ◽  
S.I. Shabalin
Keyword(s):  
Metal Contents ◽  
Gorny Altai

Assessment of heavy metals in tobacco of cigarettes commonly sold in Ethiopia

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Heavy Metals ◽  
Trace Metals ◽  
Atomic Absorption Spectrophotometry ◽  
Epidemiological Studies ◽  
Cigarette Tobacco ◽  
Absorption Spectrophotometry ◽  
Wet Digestion ◽  
Metal Contents ◽  
Cu And Zn ◽  
Significant Flux

A significant flux of heavy metals, among other toxins, reaches the lungs through smoking. This study reports Cd, Pb, Cu and Zn contents in tobacco of 11 brands of cigarette commonly sold in Ethiopia. The heavy metals were determined by atomic absorption spectrophotometry after wet digestion of cigarette tobacco using HNO3 and H2O2. The concentration of trace metals in the cigarettes ranged (mean) (μg/g), Cd: 1.3−7.6 (2.48±0.32), Pb: 0.50−12.50 (6.24±2.2), Cu: 2.89−25.35 (13.70±4.12) and Zn: 24.40−62.55 (36.22±7.50) while Ni was not detected in all the eleven brands of cigarettes. Comparable levels of trace metals were obtained in the tobacco of both imported and Ethiopian cigarettes. The average trace metal contents of cigarettes available in Ethiopia were Cd 1.82±0.39, Pb 4.23±0.97, Cu 10.2±3.1 and Zn 28.2±7.8 μg/cigarette and a person who smokes 20 cigarettes per day is estimated to increase his/her daily Cd, Pb, Cu and Zn retention by approximately 0.036, 0.085, 0.204, 0.564 mg/day, respectively. The results indicate that smoking and exposure to cigarette smoke is a serious problem to be taken into account when carrying out epidemiological studies on human exposure to trace metals.

Evaluation of Heavy Metal Contents in Mudflat Solar Salt, Salt Water, and Sea Water in the Nationwide Salt Pan

2012 ◽  
Vol 41 (7) ◽  
pp. 1014-1019 ◽  
Author(s):  
Hag-Lyeol Kim ◽  
Young-Joo Yoo ◽  
In-Sun Lee ◽  
Gang-Hee Ko ◽  
In-Cheol Kim
Keyword(s):  
Heavy Metal ◽  
Sea Water ◽  
Salt Water ◽  
Solar Salt ◽  
Metal Contents ◽  
Salt Pan

Heavy Metal Contents and Safety Evaluation of Commercial Salts in Seoul

2012 ◽  
Vol 41 (1) ◽  
pp. 129-135 ◽  
Author(s):  
Ae-Kyung Kim ◽  
Sung-Ja Cho ◽  
Jae-Eun Kwak ◽  
Jin-Young Kum ◽  
Il-Young Kim ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Safety Evaluation ◽  
Metal Contents
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