Purnendu K. Dasgupta

TL;DR: In this article, chemical reactivities, ptta differences, and differing volatilities of S-containing acids permit selective determinations in four conjoined but independant FIA schemes.

TL;DR: In this article, two different measurement methods for atmospheric nitric and nitrous acid during the Atlanta Supersite study are described and compared, which combined wet denuder collection coupled to ion chromatographic analysis.

TL;DR: It is reported here that a narrow capillary can be used to hydrodynamically separate a wide size range of DNA fragments in a single run without the need for gels, wall coatings, or an electric field.

TL;DR: In this paper, a gas or vapor permeable optical fiber waveguide with a liquid core is employed as a probe for the detection or measurement of a chemical specie of interest by filling the waveguide core region with a reagent liquid which undergoes a change in an optical characteristic thereof when exposed to the chemical species and then inserting the filled waveguide into an environment in which the specie may be present.

TL;DR: A high-resolution capacitance-based moisture sensor utilizing a thin film of a perfluorosulfonate ionomer-H(3)PO(4) composite in a flow-through configuration, for both gas and liquid samples, which can measure trace water in many types of organic solvents; no reagent consumption is involved.