SGA-100 Symmetrical Gravimetric Analyzer

The SGA-100 Symmetrical Gravimetric Analyzer is a continuous vapor flow sorption instrument for obtaining water and organic vapor isotherms at temperatures ranging from 0ºC to 80ºC at ambient pressure. As a result of its symmetrical design (both the sample and the reference side of the microbalance are subjected to identical temperature, relative humidity and flow rate), this instrument achieves great accuracy and stability. Another benefit of this design is the ability to perform absolute or differential adsorption experiments. In addition to isotherms," isohumes", maintaining constant humidity and equilibrating the sample to a series of temperatures, heats and kinetics of adsorption, hydrate formation can also be studied.

The core of the instrument is an isothermal aluminum block containing the sample chamber, which permits very tight control of temperature and RH at the sample. The temperature within the block is kept stable by a constant temperature bath capable of temperature control within 0.01ºC. Because of the easy access to the sample and the absence of glass hang-down tubes, this instrument is very easy to operate and highly reliable. The SGA-100 is also very compact, with a footprint of only 18" x 20".

VTI Corporation, 7650 W. 26th Avenue, Hialeah, FL 33016. Tel: 305-828-4700; Fax: 305-828-0299.