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Atomic absorption spectroscopy
...h element absorbs wavelengths differently, allowing for the identification and quantification of the element in the sample. ...ent of interest absorb the light. The amount of light absorbed is measured and used to determine the concentration of the element within the sample.

3 KB (431 words) - 03:29, 24 March 2024
Trace levels
...hese minute quantities can have significant effects on health, ecosystems, and chemical reactions. ...esence of trace impurities can influence the outcome of chemical reactions and the properties of materials.

3 KB (448 words) - 04:16, 28 March 2024
Particle-induced X-ray emission
...and intensity of these X-rays can be measured to identify and quantify the elements present in the sample. ...om approximately 11 (sodium) to 92 (uranium), making it applicable to most elements of interest in scientific research.

3 KB (473 words) - 02:07, 22 March 2024
Francium
...ity and radioactivity, francium has no significant commercial applications and is primarily of interest to [[scientific research]]. ...but it is presumed to be a highly reactive metal, similar to other alkali metals.

2 KB (335 words) - 12:09, 19 April 2024
Boron group
...making boron a metalloid, while the others are considered post-transition metals. ...oints decrease down the group, with boron having the highest melting point and thallium the lowest among them.

3 KB (433 words) - 20:04, 17 March 2024
Elemental analysis
...environmental science, and materials science among other fields of science and engineering. ...scientific research to ensure product quality, compliance with standards, and in the development of new materials.

4 KB (560 words) - 14:46, 19 April 2024
Cadmium
...obacco smoke. Exposure to high levels of cadmium may cause certain cancers and other health problems. Cadmium is a trace element and transitional metal that is not believed to play a role in higher biologic s

2 KB (380 words) - 12:57, 12 May 2019
Dross
...ross can vary significantly depending on the type of metal being processed and the specific techniques employed. ==Formation and Composition==

3 KB (441 words) - 02:22, 19 April 2024
Biology and pharmacology of chemical elements
'''Biology and Pharmacology of Chemical Elements''' ...different elements in biological processes, their therapeutic potentials, and their toxicological risks.

3 KB (443 words) - 03:50, 2 April 2024
Dietary mineral
...living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen present in common organic molecules. The term "dietary mineral" is a ...the diet. Some are heavier than the four just mentioned, including several metals, which often occur as ions in the body. Some dietitians recommend that thes

2 KB (347 words) - 22:06, 28 February 2024
Osmium
...ue-black [[transition metal]] in the [[platinum group]] that is found as a trace element in alloys, mostly in platinum ores. Osmium is the densest naturally Osmium has a blue-gray tint and is the densest stable element; it is approximately twice as dense as [[lead

2 KB (345 words) - 18:25, 25 February 2024
Chromium(III)
.... It is the first element in Group 6. It is a steely-grey, lustrous, hard, and brittle transition metal. Chromium is also the main additive in stainless s ...nk collagen, which stabilizes the leather by linking the collagen proteins and preventing them from becoming water-soluble.

1 KB (172 words) - 23:14, 25 February 2024
Hair analysis
...od involves the examination of hair samples to assess the concentration of elements or compounds absorbed by the hair over a period of time. Hair analysis can ...ample is then washed to remove external contaminants, digested chemically, and analyzed using techniques such as [[mass spectrometry]] or [[atomic absorpt

3 KB (437 words) - 16:49, 17 March 2024
Bottom ash
...The exact composition can vary depending on the type of coal being burned and the specific power plant. ...nd reclamation]] projects. It is also used in the production of [[cement]] and [[brick]]s.

2 KB (256 words) - 14:29, 3 March 2024
Actinium
...e first non-primordial radioactive element to be isolated. [[Marie Curie]] and [[André-Louis Debierne]] are also credited with discovering the element in ...ium has no significant commercial applications, but it is used in research and as a source of [[neutrons]].

3 KB (394 words) - 12:55, 19 April 2024
Biosolids
...volves treating sewage sludge to meet regulatory requirements for pathogen and vector attraction reduction, making it safe for beneficial use in the envir ...rying. The resulting material, when processed to meet strict environmental and health standards, is termed "biosolids."

3 KB (471 words) - 06:48, 22 March 2024
Ashing
...tical chemistry, particularly in the analysis of [[metals]], [[minerals]], and [[ceramics]], as well as in the food industry to determine the mineral cont ...absorption spectroscopy]] (AAS) to determine the concentration of various elements.

3 KB (391 words) - 19:15, 27 March 2024
Molybdenum
...humb]] '''Molybdenum''' is a [[chemical element]] with the symbol '''Mo''' and [[atomic number]] 42. It is a [[silvery]]-gray [[metal]] in the [[transitio ==Properties and Characteristics==

3 KB (430 words) - 08:00, 22 April 2024
Zinc ions
...abolism, acting as catalytic and structural components of many [[enzyme]]s and [[protein]]s. ==Properties and Occurrence==

3 KB (460 words) - 19:34, 27 March 2024
Selenium
| appearance = Black, red, and gray (not pictured) allotropes | discovery = Jöns Jakob Berzelius and Johan Gottlieb Gahn (1817)

5 KB (730 words) - 10:10, 28 March 2023