Abstract: A system for detecting nitrates in a tobacco sample having a light source, and a detection device. The light source provides a beam of light incident to a tobacco sample, which is reflected from the tobacco sample to the detection device. A computing device computes the amount of nitrates within the tobacco sample based on data received from the detection device to correlate the amount of tobacco-specific nitrosamines within the tobacco sample.

Abstract: A positive relief image is produced by coating a substrate with a layer of a copolymer containing about 90-98 mole percent of polymerized lower alkyl methacrylate units and about 2-10 mole percent of polymerized lower haloalkyl methacrylate units, heating the layer to cause cross-linking between polymer chains by removal of hydrogen halide, patternwise exposing the layer with high energy radiation such as a scanning electron beam, and removing the exposed portion of the layer with a solvent developer.The purpose of this abstract is to enable the public and the Patents and Trademark Office to rapidly determine the subject matter of the technical disclosure of the application. This abstract is neither intended to define the invention of the application nor is it intended to be limiting as to the scope thereof.