Foreword

This standard replaces Method II of GB 5413.21-2010 “National food safety standard Determination of calcium, iron, zinc, sodium, potassium, magnesium, copper and manganese in foods for infants and young children, milk and milk products”, GB/T 23545-2009 “Determination of manganese in white wine-Inductively coupled plasma atomic emission spectrometry”, GB/T 23374-2009 “Determination of aluminium in foods-Inductively coupled plasma mass spectrometry”, GB/T 18932.11-2002 “Method for the determination of potassium, phosphorus, iron, calcium, zinc, aluminium, sodium, magnesium, boron, manganese, copper, barium, titanium, vanadium, nickel, cobalt, chromium contents in honey-Inductively coupled plasma atomic emission spectrometric method (ICP-AES)”, Method II of SN/T 0856-2011 “Method for the determination of tin in canned food for import and export”, SN/T 2208-2008 “Determination of sodium, magnesium, aluminium, calcium, chromium, iron, nickel, copper, zinc, arsenic, strontium, molybdenum, cadmium, lead, mercury, selenium in aquatic products-Microwave digestion- ICP/MS method”, SN/T 2056-2008 “Determination of lead, arsenic, cadmium, copper, iron content in tea for import and export-ICP/AES method”, SN/T 2049-2008 “Determination of copper, nickel, lead, manganese, cadmium, titanium in food grade of phosphoric acid for import and export-Inductively coupled plasma atomic emission spectrometric method”, SN/T 2207-2008 “Determination of arsenic, calcium, lead content in food additive DL-tartaric acid for import and export-ICP/AES method”, and NY/T 1653-2008 “Determination of mineral elements in vegetables, fruits and derived products by ICP-AES method”.

Compared with Method II of GB 5413.21-2010, the major changes of this standard are as follows:

——the name of standard has been modified to “National food safety standard Determination of multi- elements in foods”.

——the inductively coupled plasma mass spectrometry has been added as Method I;

——the inductively coupled plasma optical emission spectrometry has been modified as Method II;

——the application scope has been modified;

——partial contents of test sample preparation have been modified;

——partial contents of test sample digestion have been modified;

——the limit of detection and limit of quantitation for the method have been added.