A Manual Rectangular KBr Pellet Press

$29.00 plus tax (Refund Policy)

Buy Article:

Abstract:

The absorbance for a given quantity of a compound in spectroscopic analysis is absolute and depends only on the fraction of that quantity which interacts with the electromagnetic radiation. Also, to maximize the signal-to-noise (S/N) ratio the total optical power of the spectrophotometer should be allowed to interact with the sample. Since the design of the monochromator is normally based on line-shaped entrance and exit slits, the optimum geometry for a sample pellet would be a rectangle of dimensions comparable to the entrance slit. Circular pellets which cover the entire slit keep part of the sample outside the beam; when the pellet diameter is made comparable to the slitwidth, excessive vignetting will occur which will adversely affect the S/N ratio.

Keywords: Infrared analysis; Rectangular pellet press; Spectroscopic technique

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370271779950409

Affiliations: Department of Chemistry, Kansas State University, Manhattan, Kansas 66502

Publication date: September 1, 1971

More about this publication?
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more