LDIF

Laboratory for Detection of Irradiated Food
National Reference Laboratory No.5

Laboratory for Detection of Irradiated Food was founded in INCT in 1994, enabling for the first time in Poland to check whether food has undergone technological irradiation. In addition to its analytical duties, the laboratory staff is engaged in research on the development and improvement of methodological procedures influencing the detection of radiation treatment in complex samples, meeting the increasing requirement of the customers.

All analytical methods adapted in the laboratory are accredited as stated in the Scope of Accreditation No AB 262.

  • Laboratory received its firs accreditation certificate in 1999.
  • The present Accreditation Certificate of Testing Laboratory Nr AB 262 was issued for the laboratory by the Polish Centre of Accreditation on 24 July 2018 and is valid until 24 October 2022 – copy enclosed
  • Laboratory is included in FSA and SSA registers compiling data on accredited testing laboratories involved in TL and PSL detection methods.
  • Current analytical activity of the laboratory is focused on:
    1. detection of irradiated food containing bones (poultry, fish, shelled eggs) by Electron Spin Resonance spectroscopy (ESR) according to the PN-EN 1786 standard;
    2. detection of irradiated food containing crystalline cellulose (nuts, strawberries, some herbs) by Electron Spin Resonance spectroscopy (ESR) according to the PB-EN 1787 standard;
    3. detection of irradiated food from which silicate minerals can be separated, like spices, herbs, vegetables, fruits, shrimps, by thermoluminescence (TL) method according to the PN-EN 1788 standard;
    4. detection of irradiated food by a screening photoluminescence method (Pulsed Photo Stimulated Luminescence – PSL) according to the PN-EN 13751:2007 standard;
    5. detection of irradiated food containing crystalline sugars (dried and candied fruits like resins, figs, dates, mango, papaya etc) by Electon Spin Resonance Spectroscopy (ESR) according to the PN-EN 13708 standard.


Thermoluminescence measurement with Risø TL/OSL DA-20 reader adapted for the detection of irradiated food from which silicate minerals were isolated (PN-EN 1788)

Photoluminescence measurement with the use of SURRC PPSL Irradiated Food Screening System (PN-EN 13751)

OPresent activity of the laboratory is focused on the improvement of mineral separation technique from fine powdered samples containing typically one irradiated component among the others not irradiated. (herbal pharmaceutics and extracts, for example). ESR and PPSL method are also tested with similar complex samples.


Thermoluminescence measurement with Risø TL/OSL DA-20 reader adapted for the detection of irradiated food from which silicate minerals were isolated (PN-EN 1788)

Isolation of silicate minerals from powdered spices

On the orders of domestic and foreign customers laboratory is executing the examination of spices, herbs, vegetables an their blends including herbal pharmaceutics, extracts and diet supplements, poultry, fish, nuts, dried fruits, etc. whether irradiated. (see also OFFERS → SERVICES → LDIF)


ESR measurement with EPR 10 Mini SpIN spectrometer (PN-EN 1786, PN-EN 1787, PN-EN 1788, PN-EN 13708)
Samples for analysis are delivered from Germany, Italy, France, Denmark, United Kingdom, China, Israel, Russia.