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Metals Sub-Group
SubGroup Co-Chairs
Kevin Kubachka, U.S. Food and Drug Administration (Kevin.Kubachka@fda.hhs.gov)
Jenny Nelson, Agilent Technologies (jenny_nelson@agilent.com)


Report of the AOAC Metals Subgroup Meeting

Tuesday, September 26, 2017
4:30 - 6:00 pm
Room: International #3

 

The first thing that was discussed was the metals updates from Canada (CFIA), Europe (Swedish National Food Agency and DTU), and the US FDA.

1)  CFIA testing Programs for metals in foods (CFIA Dartmouth Lab):

  • Maple and other tree syrup/products (Pb)
  • Raw milk (metals)
  • Fish and Shellfish (metals and mercury)
  • Honey (metals)
  • Fresh Fruit and Veggies (metals)
  • Nuts and seeds (metals)
  • Wine at retail (speciated arsenic)
  • Frozen and processed fish (methyl Hg)
  • Spices (metals)
  • *There is also testing at other private laboratories for other food matrices.

Other highlights:

  • Speciated arsenic and total metals in wine and spirits.  This has been a new survey for us over the last couple of years and plan to receive approximately 200 samples in total.  Some alcohols showed conversion of the speciated compounds and we had to look at ways to minimize conversion.
  • Spices for total metals.  This has also been an interesting survey as we never had much experience running spices for metals.  There were some digestion issues to overcome for turmeric, especially, but the reason for testing is around the idea of compounds being added to the spices to give them the appropriate color.  These compounds may contain high levels of toxic metals.

Nanoparticles in food. 

  • The CFIA Dartmouth Lab received training on sp-ICP-MS from Agilent (Jenny Nelson, Clint Walker, Pam Wee) throughout the year.  There are some internal projects within CFIA, mostly at a CFIA Lab in Ottawa looking at how to detect and extract these materials from foods.  Also, during the last year, CFIA organized an interdepartmental meeting with other Canadian federal government departments to better understand the gaps, challenges and research activities related to nanoparticles in food.  Also, at the meeting, there was a commitment to initiate a Network for people across the country to coordinate activities.

2)  Current activities in Europe:  Sweden - Elements and their speciation (Barbro Kollander, Division of Science, National Food Agency, Sweden)

  • Ongoing activities in Europe
  • Workshop on heavy metals (HM) in Geel, Belgium, 26-27 september.
  • In 2018 the European Union Reference Laboratory for heavy metals will move from Joint Research Center in Geel, Belgium to Copenhagen, Denmark.
  • Continuous survey and control of inorganic arsenic in food stuffs,
    • Analytical method EN 16802, accredited by SWEDAC.
    • Control of iAs in Baby Food based on rice. EU maximum limit 100 µg iAs/kg.
    • Control of iAs in white rice and whole grain rice. EU maximum limits 200 and 250 µg iAs/kg respectively.
    • Survey of iAs in shrimps, prawns and ketchup.
  • Control of cadmium and lead in ceral based Baby Food. EU maximum limits 40 µg Cd/kg and 30-50 µg Pb/kg.
  • Method development- Analysis of arsenic species in urine with anion and cation chromatography.
  •    The goal is to determine iAs and some of the organic arsenic species present in urine; DMA and MMA, and also arsenobetaine if the person in question have eaten fish or shellfish.

3) Current activities in Europe:  DTU/CEN – metals in food and feed (Jens J. Sloth)

  • Working groups

CEN TC275 Foodstuffs. WG10 Elements and their chemical species

  • EN16801:2016 Foodstuffs – Determination of elements and their chemical species – Determination of methylmercury in foodstuffs of marine origin by isotope dilution GC-ICP-MS (PI: Stig Valdersnes (N)) Status: PublishedJ
  • EN16802:2016 Foodstuffs – Determination of elements and their chemical species – Determination of inorganic arsenic in foodstuffs of marine and plant origin by anion-exchange HPLC-ICP-MS (PI: Jens J. Sloth (DK)) Status: PublishedJ
  • EN 16943:2017 Foodstuffs - Determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc by ICP- OES (PI: Renate Habernegg (De)) Status: PublishedJ
  • WI 0275321 Foodstuffs — Elements and their chemical species — Determination of organomercury in seafood by elemental mercury analysis (PI: P. Robouch)
  • NWIP ICP-MS-Al Foodstuffs — Determination of Aluminium by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) (PI: Kerstin Schöberl (De))
  • NWIP ICP-OES-Al Foodstuffs — Determination of Aluminium by Inductively Coupled Plasma Optical Emission Spectometry (ICP-OES) (PI: Kerstin Schöberl (De))
  • Pipeline: Multi-method by ICPMS (PI: Timo Kapp (De)) Ag, As, Co, Cu, Mn, Mo, Ni, Pb, Se, Tl, U and Zn

 

CEN TC327 Animal feedingstuffs. WG4 Elements and their chemical species

  • Chair: Dr. Jürgen Danier (Germany)
  • Secretariate: NEN
  • Last meeting: Feb 2017 (Brussels)
  • Next meeting: Oct2017 (skype) and spring 2018 (Brussels)
  • (link to TC275: https://standards.cen.eu/dyn/www/f?p=204:7:0::::FSP_ORG_ID:6308&cs=151B54DCC1DA2676999693FCE3A6F61BC )
  • EN17050:2017 Animal feeding stuffs: Methods of sampling and analysis — Determination of iodine in animal feed by ICP-MS (PI: Jens J. Sloth (DK)
  • Status: PublishedJ
  • prEN17053 Animal feeding stuffs: Methods of sampling and analysis — Determination of trace elements, heavy metals and other elements in feed by ICP-MS (multi-method) (PI: Ralf Klose (De))
  • (elements included: As, Cd, Co, Cu, Fe, Hg, Mn, Mo, Pb, Se, Tl, U and Zn)
  • Status: Submitted for formal vote
  • prCEN/TS00327091 Performance criteria for single laboratory validated and ring-trial validated methods of analysis for the determination of heavy metals (PI: Piotr Robouch (EURL-HM))
  • Status: submitted for formal vote
  • FprEN Animal feeding stuffs: Methods of sampling and analysis — Determination of inorganic arsenic in animal feed by HPLC-ICP-MS (PI: Jens J. Sloth (DK)
  • Status: on-going – ILC in 2018

Iodine standard – just published (sept 2017)

 

 

 

 

 

 


 
 
 
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