Food & Environmental Testing

Testing food and water means proving a sample meets a limit, and the limit sets the instrument. A pesticide residue measured in parts per billion needs chromatography with a mass detector; a turbidity reading for drinking water needs a bench meter and little else. Most of the work is the preparation that gets a messy matrix into a form an analyser can read, which is why a lab here runs a chain of equipment rather than a single machine. The Questpair catalogue carries 37310 listings across the categories this work draws on, from sample prep up to the instruments that produce the final number on a certificate.