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<h1>
Dual-Beam UV-VIS Spectrophotometer</h1>
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<H3>
Introduction</H3>
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<U>uv-visspectroscopy</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/uv-vis.htm")
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<H3>
Instrumentation</H3>
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Schematic of a dual-beam UV-VIS Spectrophotometer<BR>
<U><IMG SRC="uv-vis-2.gif" HEIGHT=100 WIDTH=466></U>(internet-link: "http:/www.scimedia.com/chem-ed/spec/uv-vis/graphics/uv-vis-2.gif")
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Pictures of Lambda 3A and 4B dual-beam uv-vis spectrophotometers<BR>
<U><IMG SRC="lambda3a.jpg" HEIGHT=133 WIDTH=290></U>(internet-link: "http:/www.scimedia.com/chem-ed/spec/uv-vis/graphics/lambda3a.jpg")
<U><IMG SRC="lambda4b.jpg" HEIGHT=133 WIDTH=280></U>(internet-link: "http:/www.scimedia.com/chem-ed/spec/uv-vis/graphics/lambda4b.jpg")
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<U>Largerpicture of the Lambda 3a spectrophotometer<BR></U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/lambda.jpg")
<U>Close-upof the control panel</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/lpanel.jpg")
/ <U>Close-upof the sample compartment</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/lsample.jpg")
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<I>
Pictures of a Hitachi dual-beam uv-vis spectrophotometer<BR>
<U><IMG SRC="hitachi.jpg" HEIGHT=133 WIDTH=295></U>(internet-link: "http:/www.scimedia.com/chem-ed/spec/uv-vis/graphics/hitachi.jpg")
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<U>Largerpicture</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/hitachi2.jpg")
/ <U>Pictureof the sample compartment</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/hsample.jpg")
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<U>Pictureof the sample cells</U>(internet-link: "http://www.scimedia.com/chem-ed/spec/uv-vis/graphics/uv-cells.jpg")
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<H3>
<I>
Further Information</I>
</H3>
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<HR>
<I>
<U>Science Hypermedia HomePage</U>(internet-link: "http://www.scimedia.com/index.htm")
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<U>Copyright</U>(internet-link: "http://www.scimedia.com/scimedia/copyright.htm")
© 1996 by Brian M. Tissue </I>
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<PRE>
<I>
updated 2/24/96</I>
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