The developed procedure allowed the individual identification and quantification of benzene and toluene and the determination of the sum of ethylbenzene and xylenes. As it can be seen, benzene was undetected in actual samples, probably as a result of the easy evaporation of this compound, as well as its low concentration in petroleum derivatives (less than 5%, v/v).
Shelby, North Carolina. Shelby is a city in and the county seat of Cleveland County, North Carolina, United States. It lies near the western edge of the Charlotte combined statistical area. The population was 20,323 at the 2010 census.
Welcome to Shelby County, the fastest growing county in the State of Alabama. Encompassing approximately 800 square miles in Central Alabama, the County offers diverse amenities in a temperate climate with dramatic landscapes. Recreational opportunities flourish throughout the County, from our city and county parks to the 10,000-acre Oak Mountain State Park.