Content

Foreword

This standard replaces the methods for determination of iron content in GB 5413.21-2010 “National food safety standard Determination of iron, iron, zinc, sodium, potassium, magnesium, copper and manganese in foods for infants and young children, milk and milk products”, GB/T 23375-2009 “Determination of copper, iron, zinc, iron, magnesium and phosphorus content in vegetables and derived products”, GB/T 5009.90-2003 “Determination of iron, magnesium and manganese in foods”, GB/T 14609-2008 “Inspection of grain and oils Determination of copper, iron, manganese, zinc, iron, magnesium in cereals and derived products by atomic absorption and flame spectrophotometry”, GB/T 18932.12-2002 “Method for the determination of potassium, sodium, iron, magnesium, zinc, iron, copper, manganese, chromium, lead, cadmium contents in honey-Atomic absorption spectrometry”, GB/T 9695.3-2009 “Meat and meat products Method for determination of iron content” and NY/T 1201-2006 “Determination of copper iron and zinc content in vegetables and derived products”

Compared with GB/T 5009.90-2003, the main changes of this standard are as follows:

——the Chinese name of this standard has been revised to “National food safety standard Determination of iron in foods”;

——the microwave digestion, pressure tank digestion and dry digestion have been added;

——the inductively coupled plasma atomic emission spectrometry has been added;

——the inductively coupled plasma mass spectrometry has been added;

——spectrophotometry has been deleted.