The Reinsch test is an initial indicator to detect the presence of one or more of the following

heavy metals upright=1.2, Crystals of lead.html" ;"title="osmium, a heavy metal nearly twice as dense as lead">osmium, a heavy metal nearly twice as dense as lead Heavy metals is a controversial and ambiguous term for metallic elements with relatively h ...

in a biological sample, and is often used by

toxicologist Toxicology is a scientific discipline (academia), discipline, overlapping with biology, chemistry, pharmacology, and medicine, that involves the study of the adverse effects of chemical substances on living organisms and the practice of diagnos ...

s where poisoning by such metals is suspected. The method, which is sensitive to

antimony Antimony is a chemical element; it has chemical symbol, symbol Sb () and atomic number 51. A lustrous grey metal or metalloid, it is found in nature mainly as the sulfide mineral stibnite (). Antimony compounds have been known since ancient t ...

arsenic Arsenic is a chemical element; it has Symbol (chemistry), symbol As and atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony. Arsenic is not ...

bismuth Bismuth is a chemical element; it has symbol Bi and atomic number 83. It is a post-transition metal and one of the pnictogens, with chemical properties resembling its lighter group 15 siblings arsenic and antimony. Elemental bismuth occurs nat ...

selenium Selenium is a chemical element; it has symbol (chemistry), symbol Se and atomic number 34. It has various physical appearances, including a brick-red powder, a vitreous black solid, and a grey metallic-looking form. It seldom occurs in this elem ...

thallium Thallium is a chemical element; it has Symbol (chemistry), symbol Tl and atomic number 81. It is a silvery-white post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors when exposed to air. Che ...

and mercury, was discovered by Hugo Reinsch in 1841.

Process

* Dissolve suspect body fluid or tissue in a

hydrochloric acid Hydrochloric acid, also known as muriatic acid or spirits of salt, is an aqueous solution of hydrogen chloride (HCl). It is a colorless solution with a distinctive pungency, pungent smell. It is classified as a acid strength, strong acid. It is ...

solution * Insert a

copper Copper is a chemical element; it has symbol Cu (from Latin ) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orang ...

strip into the solution. * The appearance of a silvery coating on the copper may indicate mercury. A dark coating indicates the presence of one of the other metals. * Confirm finding using absorption or emission

spectroscopy Spectroscopy is the field of study that measures and interprets electromagnetic spectra. In narrower contexts, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum. Spectro ...

X-ray diffraction X-ray diffraction is a generic term for phenomena associated with changes in the direction of X-ray beams due to interactions with the electrons around atoms. It occurs due to elastic scattering, when there is no change in the energy of the waves. ...

, or other analytical technique suitable for

inorganic An inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds⁠that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemistry''. Inor ...

analysis. * A scientific application of the Reinsch test was presented in 2010 by chemists of Technische Universität München, Lehrstuhl für Radiochemie (Institute for Radiochemistry,

Technical University Munich The Technical University of Munich (TUM or TU Munich; ) is a Public university, public research university in Munich, Bavaria, Germany. It specializes in engineering, technology, medicine, and applied science, applied and natural sciences. Est ...

) and ITU (

Institute for Transuranium Elements The Institute for Transuranium Elements (ITU) is a nuclear research institute in Karlsruhe, Germany. The ITU is one of the seven institutes of the Joint Research Centre, a Directorate-General of the European Commission. The ITU has about 300 sta ...

, Karlsruhe): in the course of the radiochemical purification of ⁷⁹Se for the determination of its

half-life Half-life is a mathematical and scientific description of exponential or gradual decay. Half-life, half life or halflife may also refer to: Film * Half-Life (film), ''Half-Life'' (film), a 2008 independent film by Jennifer Phang * ''Half Life: ...

, reductive deposition of selenium on metallic copper was the first step to extract ⁷⁹Se from high active raffinate (= PUREX raffinate) in a

hot cell A hot cell is a name given to a containment chamber that is shielded against nuclear radiation. The word ''hot'' refers to radioactivity. Hot cells are used in both the nuclear-energy and the nuclear-medicines industries. They are required to ...

.Jörg, G., Bühnemann, R., Hollas, S., Kivel, N., Kossert, K., Van Winckel, S., Lierse v. Gostomski, Ch. ''Applied Radiation and Isotopes'' 68 (2010), 2339–2351

References

* Saferstein R. 2001. ''Criminalistics: An Introduction to Forensic Science''. Prentice Hall {{reflist

External links

* Analytical tests for H
rcm-medicine.upr.clu.edu
Toxicology tests

Process

See also

References

External links