GB 5009.137-2016 Translated English of Chinese Standard. GB5009.137-2016: National Food Safety Standard - Determination of Antimony in Foods
https://www.chinesestandard.net, 2017 M12 16 - 10 pages
This Standard specifies the hydride atomic fluorescence spectrometric method for the determination of antimony in foods. This Standard applies to the determination of antimony in foods.
Expression of Analytical Results
Annex A Temperature Programming of Microwave Digestion
absorb 5.00 ml accurate to 0.001 Accurately absorb 5.00 accurately transfer 1.00 acid to 0.5 add 2 ml add water dropwise amount of water analytically pure Antimony in Foods antimony in sample antimony standard serial antimony standard solution Ascorbic acid carry out reagent content of antimony Determination of Antimony digestion tank drive acid dropwise to dilute dropwise to volume fluorescence value g accurate g of potassium GB/T heat to drive hollow cathode lamp Hydrogen peroxide liquid sample mass concentration mg/kg or mg/l microwave digestion ml of antimony ml of hydrochloric ml of liquid ml of nitric ml of sample ml of thiocarbamide-potassium ml of water ml volumetric flask nitric acid optimum conditions Perchloric acid Potassium iodide reagent blank test sample digestive juice sample or accurately sodium borohydride sodium hydroxide solid sample solution 2 g/l solution or thiocarbamide-ascorbic standard serial solutions Standard substance thiocarbamide-ascorbic acid solution thiocarbamide-potassium iodide solution transfer 1.00 ml