https://wikimd.org/index.php?action=history&feed=atom&title=Spectrophotometry Spectrophotometry - Revision history 2026-04-24T23:38:19Z Revision history for this page on the wiki MediaWiki 1.44.2 https://wikimd.org/index.php?title=Spectrophotometry&diff=6321499&oldid=prev Prab: CSV import 2025-02-18T11:03:18Z <p>CSV import</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 11:03, 18 February 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l26">Line 26:</td> <td colspan="2" class="diff-lineno">Line 26:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Physics-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Physics-stub}}</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Biochemistry-stub}}</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>{{Biochemistry-stub}}</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;gallery&gt;</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Spektrofotometri.jpg|Spectrophotometry</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Beckman_Ir-1_Spectrophotometer,_ca._1941.jpg|Beckman IR-1 Spectrophotometer, ca. 1941</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Beckman_model_db_n009w2543.tiff|Beckman Model DB Spectrophotometer</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Spectrophotometer-in-use.jpg|Spectrophotometer in use</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Spetrophotometer-en.svg|Spectrophotometer diagram</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">File:Mettler_Toledo_UV5Nano_micro-volume.jpg|Mettler Toledo UV5Nano micro-volume spectrophotometer</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">&lt;/gallery&gt;</ins></div></td></tr> </table> Prab https://wikimd.org/index.php?title=Spectrophotometry&diff=5342690&oldid=prev Prab: CSV import 2024-03-02T14:09:14Z <p>CSV import</p> <p><b>New page</b></p><div>&#039;&#039;&#039;Spectrophotometry&#039;&#039;&#039; is a [[quantitative analysis|quantitative]] method used in [[chemistry]] and [[physics]] to measure the [[absorption spectrum|absorption]] of a substance at different wavelengths of light. It is a key technique in the fields of [[biochemistry]] and [[molecular biology]].<br /> <br /> == History ==<br /> The concept of spectrophotometry dates back to the 19th century, when scientists began studying the [[absorption spectrum|absorption]] and [[emission spectrum|emission]] of light by matter. The first practical spectrophotometer was developed in the early 20th century by [[Arnold O. Beckman|Arnold Beckman]].<br /> <br /> == Principles ==<br /> Spectrophotometry is based on the principle that every substance absorbs or transmits light over a certain range of wavelength. This property is known as the [[absorption spectrum]]. The amount of light absorbed or transmitted is measured by a spectrophotometer, which produces a graph of the absorption spectrum.<br /> <br /> == Types ==<br /> There are several types of spectrophotometry, including [[UV/Vis spectrophotometry]], [[infrared spectrophotometry]], and [[atomic absorption spectrophotometry]]. Each type uses a different range of the [[electromagnetic spectrum]] and is suited to different types of analysis.<br /> <br /> == Applications ==<br /> Spectrophotometry is used in many scientific fields, including [[chemistry]], [[biochemistry]], [[molecular biology]], and [[environmental science]]. It is used to measure the concentration of a substance in a solution, to study the [[chemical kinetics]] of reactions, and to identify substances by their absorption spectra.<br /> <br /> == See also ==<br /> * [[Colorimetry]]<br /> * [[Spectroscopy]]<br /> * [[Absorption spectroscopy]]<br /> * [[Fluorescence spectroscopy]]<br /> <br /> [[Category:Analytical chemistry]]<br /> [[Category:Spectroscopy]]<br /> [[Category:Biochemistry methods]]<br /> [[Category:Physics]]<br /> {{Chemistry-stub}}<br /> {{Physics-stub}}<br /> {{Biochemistry-stub}}</div> Prab