July 22 Marks 150 Years Since the Civil War Battle of Atlanta. 1  Georgia Tech had not yet been founded when the Civil War was fought, but that doesnât mean the Institute has no connections to the war.
A photoionization detector or PID is a type of gas detector. Typical photoionization detectors measure volatile organic compounds and other gases in concentrations from sub parts per billion to 10 000 parts per million (ppm).The photoionization detector is an efficient and inexpensive detector for many gas and vapor analytes.A PID may produce instantaneous readings and operate continuously. These hand-held, battery-operated detectors are widely used in military, industrial, and confined working facilities for safety.he first commercial application of photoionization detection was in 1973 as a hand-held detector for the purpose of detecting leaks of volatile organic compounds (VOC's), specifically vinyl chloride monomer (VCM), at a chemical manufacturing facility.
Our drug detection test line allows you to determine whether a substance is ecstasy, marijuana, cocaine/crack, or heroin. These tests are simple and easy to use. You can test a substance that you find or you can test any flat surface that was touched by the drug or the person who used the drug. Substance testing has been used by law enforcement and security agencies for many years and now is available for individuals to use at home, school or work. If you find a foreign or suspicious substance whether a powder, pill or even residue, you can test the substance to determine if it is an illegal drug. You can detect the presence of trace amounts of drug residues left on surfaces, such as, door knobs, counter tops, light switches, steering wheels, phones, etc.