Feed Editor 18 Jan 2008 15:59:25 GMT Information updates about ACD/Labs Optical Spectroscopy software solution including application and technical notes, and press releases. http://www.acdlabs.com/products/spec_lab/exp_spectra/uv_ir/ en Part 2 of this note covers the differences between a regular spectrum search and a 1st derivative search, and when to choose one or the other. This complements Part 1, where we already discussed differences between the Euclidean Distance, Squared Difference, and Absolute Difference algorithms, and which described how the data is generally preprocessed and normalized prior to the comparison. 18 Jan 2008 14:36:13 GMT http://www.acdlabs.com/download/technotes/100/optical_curve/searching_db2.pdf This series will cover some of the more common questions we get concerning what the algorithms do without going too deeply into the math behind the algorithms. This first part will focus on some of the data pretreatment that occurs and give a description of the algorithms. 20 Aug 2007 18:54:12 GMT http://www.acdlabs.com/download/technotes/100/optical_curve/searching_db.pdf We show that kinetic profiling information on individual components in the mixture can be obtained directly from molecular spectroscopy measurements of an etch bath solution without necessitating isolation or separation. 8 Mar 2007 19:03:26 GMT http://www.acdlabs.com/download/app/uvir/ma_etching.pdf We will show how to detect and identify batch-to-batch variations in a raw chemical mechanical polishing material. 8 Mar 2007 18:60:37 GMT http://www.acdlabs.com/download/app/uvir/ma_cmp.pdf SIMPLISMA was used to help extract and identify trace impurities and contaminants in an ATR-IR spectral data set acquired from solutions of photoresist developer used in the manufacture of silicon wafers. 8 Mar 2007 18:59:06 GMT http://www.acdlabs.com/download/app/uvir/ma_developer.pdf