GB/T 6730.72-2016 Translated English of Chinese Standard (GB/T 6730.72-2016, GBT6730.72-2016): Iron ores -- Determination of arsenic, chromium, cadmium, lead and mercury content -- Inductively coupled plasma-mass spectrometry method (ICP-MS) [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 2023/11/13 - 12 ページ This Part of GB/T 6730 specifies the method for the determination of arsenic, chromium, cadmium, lead, mercury in iron ore, by inductively coupled plasma mass spectrometry (ICP-MS). This Part applies to natural iron ore, iron concentrate, sinter and pellets. The measurement range is as shown in Table 1. Table 1 -- Scope of application of this method Elements to be measured Content range/(¦Ìg/g) Chromium 1.8 ~ 244 Arsenic 2.4 ~ 570 Cadmium 0.05 ~ 10 Mercury 1.9 ~ 10 Lead 0.3 ~ 3170 |
目次
3 | |
Scope | 4 |
Principles | 5 |
Sampling and specimen preparation | 6 |
Result calculation | 8 |
Test report | 10 |
Appendix A Informative Instrument working conditions and test samples | 11 |
Appendix B Informative Flow chart for acceptance of specimen analysis value | 12 |
多く使われている語句
acceptance of specimen accordance with GB/T analytical results Argon blank solution Blank test cadmium calibration curve certified reference chart for acceptance Chen chromium coupled plasma mass CRM or RM diluted Element standard Entry-Exit Inspection equipment Figure B.1 Flow chart g/mL high-temperature Hydrochloric acid Hydrofluoric acid ICP-MS Inductively coupled plasma Inspection and Quarantine Instrument working conditions internal standard labeled value AC Laboratory glassware liter µg/L mass fraction medium volume concentration mercury method GB/T microgram per gram micrograms per liter microwave digestion furnace nitric acid medium polytetrafluoroethylene pre-dried specimen Preparation pressure microwave digestion pressure sealed digestion procedures in Appendix Quarantine Bureau reagent reference samples requirements in Appendix Research Institute result of CRM/RM Room temperature sample for verification sample solution sealed digestion tank specified in GB/T specimen analysis value standard deviation standard samples standard solution Table A.3 Test report test samples test solution time/min verification test volumetric flasks Yes No Measure