The various elements contained in the human body, in addition to carbon, oxygen, hydrogen, nitrogen, etc., mainly exist in the form of organic matter, the remaining 60 kinds of elements are collectively called minerals (also called inorganic salts). Among them, 25 elements are necessary for human nutrition. The 7 elements of calcium, magnesium, potassium, sodium, phosphorus, sulfur, and chlorine are relatively high, accounting for 60% to 80% of the total minerals, which are called macro elements. There are 14 kinds of other elements such as iron, copper, iodine, zinc, manganese, molybdenum, cobalt, chromium, tin, vanadium, silicon, nickel, fluorine, and selenium, which are very few in number, and the content in the body is less than 0.005%, called as trace elements.

In addition to macro elements and trace elements, it also includes toxic elements; mainly including Hg, Cd, Pb, As, Cr, etc. The channels through which these substances enter the human body are: water, soil, environment, raw materials, auxiliary materials, additives, pesticides, and fertilizers, processing, manufacturing, transportation, etc. Such elements will accumulate in the human body through the food chain, which is extremely harmful. The analysis of food elements, especially harmful elements, is particularly important to ensure food safety.

Currently, common element analysis methods in food include spectrophotometry, atomic fluorescence method, graphite furnace atomic absorption spectrometry, plasma emission spectrometry, plasma mass spectrometry, and the minimum detection content can reach part per trillion level. The current general detection methods in food include National Food Safety Standard Determination of Multi-elements in Food (GB 5009.268), National Food Safety Standard Determination of Total Mercury and Organic Mercury in Food (GB 5009.17), National Food Safety Standard Food Determination of Total Arsenic and Inorganic Arsenic (GB 5009.11), National Food Safety Standard Determination of Iodine in Food (GB 5009.267), etc.

The element analysis and detection services of the Food and Agriculture Division of the Ti Testing and Certification Group involve:

Quantitative testing capability of more than 60 elements;

Full coverage of CMA and CNAS qualifications;

The stability and accuracy of the test results meet the requirements of special products (vitamin premix, health food, etc.);

Customized element analysis services, including method development of special substrates, comparison of test result data of different instruments and laboratories, and sharing of laboratory testing technologies, etc.