Griess test


Griess test
   A chemical test for the detection of nitrites. It is used by the firearms examiner to develop patterns of gunpowder residues (nitrites) around bullet holes.

Forensic science glossary. . 2012.

Look at other dictionaries:

  • Griess test — The Griess test is a chemical analysis test which detects the presence of organic nitrite compounds. The Griess diazotization reaction on which the Griess reagent relies was first described in 1858 by Peter Griess. MethodNitrite is detected and… …   Wikipedia

  • Griess test — (grēs) [Johann Peter Griess, German born chemist in England, 1829–1888] see under test …   Medical dictionary

  • Griess test — 1. (for nitrate reducing bacteria in a fluid) a formerly common test in which sulfuric acid and an indicator were added to a dilute solution and color change was assessed. 2. the same name is now applied to nitrite tests for bacteriuria in which… …   Medical dictionary

  • Réactif de Griess — Le réactif de Griess est un réactif très utilisé pour déterminer les micro organismes possédant une enzyme nitrate réductase (dits « nitrate + ») et ceux qui en sont dépourvus (dits « nitrate  »). Mode d action Le réactif de… …   Wikipédia en Français

  • Peter Griess — Infobox Scientist name = Johann Peter Griess caption = birth date = birth date|1829|9|6|mf=y birth place = Kirchhosbach near Waldkappel, Germany residence = Germany, England nationality = German death date = death date and… …   Wikipedia

  • Chemical test — In chemistry, a chemical test is a qualitative or quantitative procedure designed to prove the existence of, or to quantify, a chemical compound or chemical group with the aid of a specific reagent. A presumptive test is specifically used in… …   Wikipedia

  • nitrite test — 1. (for nitrites in saliva) to the saliva add 1 or 2 drops of sulfuric acid, a few drops of potassium iodide solution, and some starch paste; a blue color indicates nitrites. 2. a test for nitrites in any fluid; see specific tests, including… …   Medical dictionary

  • Frank Skuse — Doctor Frank Skuse was a forensic scientist for the North West Forensic Laboratories based in Chorley in Lancashire, England. His flawed conclusions, eventually discredited, contributed to the convictions of Judith Ward and the Birmingham Six.… …   Wikipedia

  • Scientific phenomena named after people — This is a list of scientific phenomena and concepts named after people (eponymous phenomena). For other lists of eponyms, see eponym. NOTOC A* Abderhalden ninhydrin reaction Emil Abderhalden * Abney effect, Abney s law of additivity William de… …   Wikipedia

  • Birmingham Six — The Birmingham Six were six men Hugh Callaghan, Patrick Joseph Hill, Gerard Hunter, Richard McIlkenny, William Power and John Walker sentenced to life imprisonment in 1975 in the United Kingdom for the Birmingham pub bombings. Their convictions… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.