Application Note: Milk Authenticity – Organic v. Non-organic
3 April 2013

In addition to highlighting some of the key issues surrounding milk authenticity, this application note demonstrates a method to measure hippuric acid levels in milk by DSA/TOF MS, using a reference standard to ascertain relative concentrations (rather than using a calibration curve). This opens up the possibly to study for pesticides, growth hormones, antibiotics and organic diet in one instrument and therefore have a definite check for organic compliance.