Perchloric acid and it salts are commonly used in laboratory practice as strong oxidizers in sample preparation. Usually sample is boiled in mixture of perchlorates and acids to dissolve some metals and otherwise acid resistance sample matrix. Mist, which is formed during sample digestion, contains small amounts of perchlorate, which eventually precipitate in ductwork and on the inner surfaces of the fume hoods.
Perchlorates may ignite other combustible materials and increase the intensity of a fire. They are unstable and can decompose explosively or spontaneously combust at ordinary temperatures if mixed with organic compounds. Heating produces toxic fumes of chlorine compounds. Perchlorates are shock sensitive. Many heavy metal perchlorates and organic perchlorate salts are extremely sensitive explosives. Proper monitoring and decommissioning of the laboratory equipment contaminated with perchlorates is a matter of safety.
LCS Laboratory Inc., developed a sampling kit, for detection of perchlorate contamination on laboratory equipment. Swab samples are collected of glass filters spiked with Deionized Water. The samples are returned to LCS Laboratory and analysed for perchlorate presence with sensitivity of 2 mg/swab.
Our request forms (Chain of Custody form) are available online, Please explore an example of the typical 2016 Perchlorates in swabs, Example Report to be sure that it satisfies your requirements. Please visit our price list for current laboratory rates or request a quote for your project.