1. Wageningen Food Safety Research (WFSR), Wageningen University & Research, P.O. Box 230, Wageningen 6700 AE, The Netherlands
2. Optical Devices Laboratory, Division of Sensor and Actuator Systems, IFM—Linköping University, Linköping S58183, Sweden
3. Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, Wageningen 6708 WE, The Netherlands