Abstract: This invention is directed to an improved total sulfur chemiluminescence detection system that uses a dual burner to generate the SO speckles for contact with ozone.

Abstract: Apparatus and method for qualitatively and quantitatively analyzing infrared emission from excited molecules in the determination of, for example, total inorganic carbon, chloride and available chlorine in aqueous samples. Methods of exciting the gas-phase, infrared-active molecules to emit radiation include flame excitation, furnace excitation, excitation by electron impact in a gas discharge or excitation by collisions with a vibrationally excited diatomic molecule. The detector is optimized by use of dual beam system with background subtraction capabilities thereby eliminating background noise and fluctuations therein.

Abstract: Apparatus and method for qualitatively and quantitatively analyzing infrared emission from excited molecules in samples of interest is disclosed. Over the wavelength interval from 1 to 5 um, two strong emission bands are observed with a PbSe detector when organic compounds are introduced into an hydrogen/air flame. The band at 4.3 um (2326 cm.sup.-1 is due to the asymmetric stretch of carbon dioxide while the band at 2.7 um is due to both water and carbon dioxide emission. The carbon dioxide emission at 4.3 um is most intense at the tip of the flame, and increases with the amount of organic compound introduced into the flame. For chromatographic application, an optical filter can be used to isolate the 4.3 um emission band. The infrared emission detection system finds application in the determination of total inorganic carbon, chloride and available chlorine in aqueous samples.

Abstract: A portable carrier for one or more beverage cans or bottles, the carrier being made of a lightweight insulating material such as a foamed synthetic resin which retains the cold (or heat) of the contents of the container. The resin is molded with pocket(s) to receive the beverage containers and is provided with attachment means to which a strap can be attached so that the article carrier can be worn either on a belt carried by a shoulder strap in order to permit the user to withdraw a can or bottle by the use of only one hand. A preferred attachment means includes a harness which is shaped to receive the article carrier and to articulate with a cover on the carrier.