IR spectroscopy
Δημοσιεύτηκε στις 3 Μαΐ 2013
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Infrared
spectroscopy (IR spectroscopy) is the spectroscopy that deals with the
infrared region of the electromagnetic spectrum, that is light with a
longer wavelength and lower frequency than visible light. It covers a
range of techniques, mostly based on absorption spectroscopy. As with
all spectroscopic techniques, it can be used to identify and study
chemicals. A common laboratory instrument that uses this technique is a
Fourier transform infrared (FTIR) spectrometer.
The infrared
portion of the electromagnetic spectrum is usually divided into three
regions; the near-, mid- and far- infrared, named for their relation to
the visible spectrum. The higher-energy near-IR, approximately
14000--4000 cm−1 (0.8--2.5 μm wavelength) can excite overtone or
harmonic vibrations. The mid-infrared, approximately 4000--400 cm−1
(2.5--25 μm) may be used to study the fundamental vibrations and
associated rotational-vibrational structure. The far-infrared,
approximately 400--10 cm−1 (25--1000 μm), lying adjacent to the
microwave region, has low energy and may be used for rotational
spectroscopy. The names and classifications of these subregions are
conventions, and are only loosely based on the relative molecular or
electromagnetic properties. Source of the article published in
description is Wikipedia. I am sharing their material. Copyright by
original content developers of Wikipedia.
Link- http://en.wikipedia.org/wiki/Main_Page
http://shomusbiology.weebly.com/
Download the study materials here-
http://shomusbiology.weebly.com/bio-m...
Infrared
spectroscopy (IR spectroscopy) is the spectroscopy that deals with the
infrared region of the electromagnetic spectrum, that is light with a
longer wavelength and lower frequency than visible light. It covers a
range of techniques, mostly based on absorption spectroscopy. As with
all spectroscopic techniques, it can be used to identify and study
chemicals. A common laboratory instrument that uses this technique is a
Fourier transform infrared (FTIR) spectrometer.
The infrared
portion of the electromagnetic spectrum is usually divided into three
regions; the near-, mid- and far- infrared, named for their relation to
the visible spectrum. The higher-energy near-IR, approximately
14000--4000 cm−1 (0.8--2.5 μm wavelength) can excite overtone or
harmonic vibrations. The mid-infrared, approximately 4000--400 cm−1
(2.5--25 μm) may be used to study the fundamental vibrations and
associated rotational-vibrational structure. The far-infrared,
approximately 400--10 cm−1 (25--1000 μm), lying adjacent to the
microwave region, has low energy and may be used for rotational
spectroscopy. The names and classifications of these subregions are
conventions, and are only loosely based on the relative molecular or
electromagnetic properties. Source of the article published in
description is Wikipedia. I am sharing their material. Copyright by
original content developers of Wikipedia.
Link- http://en.wikipedia.org/wiki/Main_Page
Unit 1 Business Environment Assignment – British Airways
ΑπάντησηΔιαγραφήBritish Airways is a leading player in airline industry. The organisation operates around 183 destinations in the year 2013. The Unit 1 Business Environment Assignment British Airways implicates the purpose of different organization and their objective for the different stake holders. The current study depicts the responsibilities of different type of organization. The report will throw the light on the allocation of resources through economic system. The study will assess the respond of competition, monetary and fiscal policy on the British Airways. The report describes the pricing and output decision and forces that shape the organizational responses. The study will implicate Different culture shapes the activities of British airways. The report indicates the significance of international trade in UK and impact of European polices in UK business Organization.
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