GB 5009.242-2017 Translated English of Chinese Standard. GB5009.242-2017: National Food Safety Standard - Determination of Manganese in Foodhttps://www.chinesestandard.net, 16 Dis 2017 - 10 halaman This Standard specifies three determination methods for manganese in food, namely, flame atomic absorption spectrometry, inductively coupled plasma emission spectrometry, and inductively coupled plasma mass spectrometry. |
Kandungan
Foreword | 4 |
Apparatus | 5 |
Analytical Procedures | 6 |
Expression of Analytical Results | 8 |
Appendix A Specimen Digestion Reference Conditions | 10 |
Istilah dan frasa biasa
100mL volumetric flask 10mL of nitric 1h or stay 3.1.1 Nitric acid absorbance value accurate to 0.001g Adjustable temperature-control electric arithmetic mean atomic absorption spectrometer blank test carbon dioxide condition can refer constant volume Coupled Plasma Mass digestion inner tank digestion method Take dioxide at low Dry digestion method electric hot furnace electric hot plate ethanol or carbon evenly for spare-use Fast frozen food heat the sample hollow cathode lamp Inductively Coupled Plasma infant formula manganese content manganese in food Manganese standard stock mass concentration method Take 0.5g~5g mg/L mix evenly mixed acid muffle furnace nitric acid solution perchloric acid pipette 1.0mL plate to remove Reagents sample contained ethanol series working solution solution 10.0mg/L specimen solution stand for 1h standard curve standard series standard solution standard substance standard working solution stay overnight Take 0.5g~5g accurate Take out inner Take the edible tank after cooling temperature-control electric hot uniformly homogenize volume to 25mL