Plans for 2010 include separate breakout sessions for subgroups to enable more time for working groups to complete projects.
The Chemical Contaminants and Residues in Food Community Meeting will be on Monday, Sept. 27 from 5-7pm.
Pesticides - Tuesday, Sept. 28, 11:45am - 1:15pm
Unknown - Tuesday, Sept. 28, 11:45am - 1:15pm
Veterinary Drugs - Tuesday, Sept. 28, 1:15pm - 2:45pm
Metals - Tuesday, Sept. 28, 1:15pm - 2:45pm
The Chemical Contaminants & Residues in Food Community met at the AOAC INTERNATIONAL meeting, held in Philadelphia, Pennsylvania, USA. The community meeting was Tuesday, September 15, 2009, 4:30-6:30 pm in the Franklin 3 room. All the community’s subgroups had breakout session during this time.
The breakout session of the Metals Subgroup was an informal discussion among those attending on analytical methods. The topics included methods currently being used, method development activities, and issues related to method performance. Also included in the discussion was development of a Single Laboratory Validation document for metals (toxic and nutritional elements as well as the chemical form (i.e., species) of these elements). The session provided an opportunity to meet with others with a common interest in elemental analysis of foods and to share analytical problems and solutions.
As another subgroup chair recently stated, the community’s purpose appears to be evolving “To Facilitate Method Exchanges and Method Development.”
(2) Notes from last year’s meeting are attached [Metals Subgroup Meeting Summary 2008-09-22.pdf] as well as my brief presentation [Metals Subgroup Presentation 2008-09-22.pdf].
(3) The metals Sub-Group has not been very active this year except for Cory Murphy’s work on drafting a single laboratory validation (SLV) document. The subgroups have been asked to prepare an SLV that would pertain to metals analysis of food. In early July 2009, he sent the draft to members indicating a willingness to assist on producing the document. He requested that I also send the document to the entire subgroup membership requesting comments. He would also appreciate assistance on writing this document that we could all use as a guide. I’ve attached his introductory note [Email Cory Murphy 2009-07-03.pdf] and the draft document “Guidelines for Single Laboratory Validation (SLV) of Chemical Methods for Metals in Food” [AOAC SLV Metals Protocol.doc]. (If you are attending the subgroup meeting this September, please bring a copy with you.)
(4) Last November (2008) I sent out a summary of responses from the Method Need survey. I received a couple of additional responses in December (2008) and updated the table attached [Metals Needs Summary 2008-12-12.pdf].
(5) Modernizing Infant Formula and Medical Foods Methods--During a somewhat impromptu meeting last year during the AOAC meeting and again at an AOAC meeting this past June <http://www.aoac.org/mtg_power_ponts/inaugural.htm> ], there has been discussion about updating the methods used for measuring various analytes in infant formula and medical foods. The methods for mineral elements have been included in these discussions. I am hopeful that more specific planning of this undertaking will take place at this years AOAC meeting.
(6) The list of current subgroup members is attached [Metals Subgroup 2009-09-04.pdf].
For those community members visiting this page who are not members of the Metals Sub-Group but wish to give us your method needs, then download and fill out the Metals Subgroup Method Needs form [Metals Subgroup Method Needs 2008-05-26.doc] and email it to the Sub-Group chair.
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Table 2. Potential Method Needs |
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Analytes |
Matrices/Technique |
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Lead |
Hard Candy/GF-AAS |
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Arsenic, Cadmium, Lead, Mercury |
All Foods/Microwave Digestion/ICP-MS |
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Calcium, Chromium, Copper, Iron, Magnesium, Manganese, Phosphorus, Potassium, Selenium, Sodium,
and Zinc |
All Foods/Microwave Digestion/ICP-MS or ICP-AES |
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Aluminum, Antimony, Nickel, Tin |
All Foods/Microwave Digestion/ICP-MS |
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Antimony, Arsenic, Barium, Beryllium, Cadmium, Chromium, Copper, Lead, Mercury, Selenium, Thallium, Uranium |
Beverages, Bottled Water/ICP-MS |
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Methylmercury |
Seafood/HPLC ICP-MS |
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Mercury |
Seafood/Microwave Digestion/CV-AAS |
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Arsenic, Cadmium, Lead, Mercury |
Dietary Supplements/Microwave Digestion/ICP-MS |
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Calcium, Chromium, Copper, Iron, Magnesium, Manganese, Phosphorus, Potassium, Selenium, Sodium,
and Zinc |
Infant Formula/Microwave Digestion/ICP-MS or ICP-AES |
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Cadmium, Lead |
Ceramic Foodware/ICP-AES |
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Arsenic, Cadmium, Lead, Mercury |
All Foods/XRFS [Screening] |
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MEETINGS WITH EMPHASIS ON ELEMENTAL ANALYSIS OF FOOD
1. The Chemical Contaminants and Residues in Food Community gathered at the 2008 AOAC INTERNATIONAL meeting this September in Dallas, Texas USA (http://www.aoac.org/meetings1/122nd_annual_mtg/main.htm). The Community meeting was on Monday, September 22, 2008. There was a symposium from 1:30-3:00 pm titled CONTAMINANT COMMUNITY: PROGRESS UPDATE AND VISIONS BY COMMUNITY AND SUB-COMMUNITY CHAIRS. After the symposium from 3:15-5:15 pm, the Community and its subgroups met.
2. 3rd International IUPAC Symposium on Trace Elements in Food, Rome, Italy, 1-3 April 2009. (http://www.tef3-2009.it/welcome.html)
REPORTS
Metals Subgroup Report, June 7, 2008 [link: Metals Subgroup Report 2008-06-07.pdf]
4th Quarter 2007 Metals Subgroup Report [link: Metals Subgroup Meeting Documents 2007-10-31r.pdf]
Current Metals Subgroup Members (2009-09-04) [link: Metals Members 2009-09-04.pdf]
EMAILS
Email 2008-05-26 from Chair, Metals Subgroup [link: Metals Subgroup Email 2008-05-26 from Subgroup Chair.pdf]
Email 2007-10-09 from Chair, Metals Subgroup [link: Metals Subgroup Email 2007-10-09 from Subgroup Chair.pdf]
Contact Sub Group Chair Cory Murphy at:Cory.Murphy@inspection.gc.ca |