GB 31604.24-2016 Translated English of Chinese Standard. GB31604.24-2016: National Food Safety Standard -- Food Contact Materials and Articles - Determination of cadmium migration quantityhttps://www.chinesestandard.net, 29 apr 2017 - 12 pagine This standard specifies the determination of cadmium migration quantity after immersion of food contact materials and articles in food simulants by graphite furnace atomic absorption spectrometry, inductively coupled plasma mass spectrometry, inductively coupled plasma emission spectroscopy, and flame atomic absorption spectrometry. |
Sommario
| 3 | |
Scope | 4 |
Instruments and equipment | 6 |
Analysis results expression | 7 |
Principles | 8 |
Instruments and equipment | 9 |
Analysis results expression | 10 |
Parole e frasi comuni
100 mL volumetric abscissa acid solution 5+95 add appropriate amount ammonium dihydrogen phosphate amount of nitric analysis of hygienic Analytical balance arithmetic mean atomic absorption spectrometer cadmium content cadmium migration quantity Cadmium standard intermediate cadmium standard series Cadmium standard stock concentration from low concentration of cadmium coupled plasma mass Determination of cadmium dihydrogen phosphate solution emission spectrometry flame atomic absorption food contact materials furnace atomic absorption graphite furnace atomic hollow cathode lamp hygienic standard inductively coupled plasma Instrument reference conditions materials and articles Method for analysis MIX it uniformly mL of cadmium mL of nitric mL of water mL volumetric flask nitric acid solution OBTAIN the cadmium phosphate solution 20 PIPETTE 0 mL plasma mass spectrometry program for graphite provisions of GB Reagents Reference temperature raising Respectively PIPETTE series for quantitation SN/T solution 1+9 solution 20 g/L standard curve standard intermediate 100 standard series solution standard stock solution temperature raising program