AOAC Methods in Codex STAN 234 (Preliminary Methods Review)

IM:r: METALS, ELEMENTS, AND RESIDUES IN »'OODS

METALS, OTHER ELEMENTS, AND llESIDUES IN FOO.OS

eport on Metals, Other Elements, and Residues in Foods*

• 1. L. RAMSEY (Food and Drug Administration, U.S. Department of I-lea.1th, Educa– , and Welfare, Washington 25, D.C.)

'Jlu• Referee has made a comprehensive 1~"\V of the methocls in Chapter 24 of tr,•i!rl Methods of Analysis, Association of rial Agricultural Chemists, Washington D.C., since the Ninth Edition is scheduled pllhlication in November, 1960. Most of lilr· recommendations with respect to revision mc!hods are based upon studies con– @rll•d by the Associate Referees; however ~rm! hove been initiated solely by the leimc on the basis of informn,tion in the c~al,urc, unpublished cla.t1.1. u.vaihble to the ~fer('C, and other factors. The new edition ~II contain eight additioniil pesticide residue ,rclho

editorial changes which appear to be in order for clarity or completeness. Ar8enic.-Gutzeit method m1d bromate method, no changes. Cadmium.-No changes. Coppel'.-Vohunet,ric method, no chtmgcs. It is recommended that the first action diethyldithiocarbamate method be deleted oncl the IUPAC EDTA-carbainate mcthocl be adopted as first action. This mct,hod, described in full below, w;-1.s subjnctcd to an international collaborative stnc.ly in which one of our Associate Reforees, Dr. A. K. Klein, p:trticipateil. The lUPAC nwtho

Table I. Collaborative results of IUPAC EDTA-carbam11.te method for copper