What is the sorbent tube?
sorbent tube is a glass bottle filled with specialized absorption materials used to test atmospheric concentrations of specific substances, including hazardous gases. The tubes are used in conjunction with a specially calibrated pump that draws air from the test atmosphere through the tube at a controlled speed. The target substances present in the air are captured in the appropriate absorption materials. After sampling, the tube is sealed and sent to the analysis laboratory. There are several sorbent tube classes, each containing a specific selection of absorption materials used to test different groups of air contaminants.
Precise concentrations of dangerous contaminants, such as gases and air vapors, can lead to the accumulation of contaminants to a point where explosions and poisoning may occur. These problems are particularly concerned about environments such as mines, chemical plants and oil refinery, WDE is the presence of toxic or explosive gasand the vapors of the continuing operational reality. Although there are different types of sampling and test devices used to detect these substances, one of the most accurate, and in fact one of the simplest is the sorbent tube.
consisting of an intake pump and a series of uncomplicated glass tubes limited at each end and filled with the selection of absorbent materials or sorbents is a sorbent system one of the most technical devices. How simple are one of the most accurate and provides consistent and reliable values of contaminants concentrations. The operation of the system is equally simple and requires the open sorbent tube to be inserted at the end of the hollow wand that is connected over the length of the pump hose. The open end of the tube is held in the test atmosphere for the cycle of the timed pump. When cycle is finished, the tube is sealed and sent to the laboratory to keep contaminantsin the analyzed sorbents.
The system's accuracy is supported by a calibrated speed at which the vacuum pump stretches the air through the tube through the set timeframe and the known speed of the absorption value of the sorbents. A number of tubes, each with a specific combination of sorbents, also lends the versatility of the system by allowing the sampling of the test atmosphere to the presence of a number of target substances. Pumps may also contain a number of pump cycles to meet relevant ambient conditions, types of tubes and targeted contaminants.