GB 5009.13-2017 Translated English of Chinese Standard. GB5009.13-2017: National food safety standard - Determination of copper in foodsThis standard specifies the determination of copper content in food by graphite furnace and flame atomic absorption spectrometry, inductively coupled plasma mass spectrometry and inductively coupled plasma-atomic emission spectrometry. |
Common terms and phrases
1000 mL volumetric accurate to 0.001 accurately PIPETTE 0.500 ADD nitric acid ammonium dihydrogen phosphate-palladium amount of nitric Analytical balance arithmetic mean atomic absorption spectrometry concentration of copper copper content copper element Copper standard intermediate copper standard series Copper sulfate pentahydrate Determination of copper digestion inner tank digestion temperature rising dihydrogen phosphate-palladium nitrate emission spectrometry Equipped with polytetrafluoroethylene flame atomic absorption furnace atomic absorption g accurate Graphite furnace atomic hollow cathode lamp inductively coupled plasma intermediate solution 1.00 liquid specimen magnesium manganese mass concentration MEASURE 250 mL mg/kg or mg/L Microwave digestion temperature milligram milliliters MIX it uniformly mL of copper mL of nitric mL volumetric flask nitric acid solution Perchloric acid phosphate-palladium nitrate solution polytetrafluoroethylene digestion inner reagent blank test result is retained series for quantitative solution 1000 mg/L specimen solution standard intermediate solution standard series solution standard stock Standard substance stock solution 1000 Teflon temperature rising program volume reach zinc