YS/T 281.3-2011 Methods for chemical analysis of cobalt—Part 3:Determination of silicon content—Molybdenum blue spectrophotometry

YS/T 281.1-2011 Methods for chemical analysis of cobalt—Part 1:Determination of iron content—Sulfosalicylic acid spectrophotometry YS/T 281.2-2011 Methods for chemical analysis of cobalt—Part 2:Determination of aluminum content—Chromeazurol S spectrophotometry YS/T 281.4-2011 Methods for chemical analysis of cobalt—Part 4:Determination of arsenic content—Molybdenum blue spectrophotometry YS/T 281.5-2011 Methods for chemical analysis of cobalt—Part 5:Determination of phosphorus content—Molybdenum blue spectrophotometry YS/T 281.6-2011 Methods for chemical analysis of cobalt—Part 6:Determination of magnesium content—Flame atomic absorption spectrometry YS/T 281.7-2011 Methods for chemical analysis of cobalt—Part 7:Determination of zinc content—Flame atomic absorption spectrometry YS/T 281.8-2011 Methods for chemical analysis of cobalt—Part 8:Determination of cadmium content—Flame atomic absorption spectrometry YS/T 281.9-2011 Methods for chemical analysis of cobalt—Part 9:Determination of lead content—Flame atomic absorption spectrometry YS/T 281.10-2011 Methods for chemical analysis of cobalt—Part 10:Determination of nickel content—Flame atomic absorption spectrometry YS/T 281.11-2011 Methods for chemical analysis of cobalt—Part 11:Determination of copper and manganese contents—Flame atomic absorption spectrometry YS/T 281.12-2011 Methods for chemical analysis of cobalt—Part 12:Determination of arsenic,antimony,bismuth,tin and lead content—Electrothermal atomic absorption spectrometry YS/T 281.13-2011 Methods for chemical analysis of cobalt—Part 13:Determination of sulphur content—Infra-red absorption method after high frequency induction furnace combustion YS/T 281.14-2011 Methods for chemical analysis of cobalt—Part 14:Determination of carbon content—Infra-red absorption method after high frequency induction furnace combustion YS/T 281.15-2011 Methods for chemical analysis of cobalt—Part 15:Determination of arsenic,antimony and bismuth content—Hydride generation-atomic fluorescence spectrometry YS/T 281.16-2011 Methods for chemical analysis of cobalt—Part 16:Determination of arsenic,cadmium,copper,zinc,lead,bismuth,tin antimony,silicon,manganese,iron,nickel,aluminum,and magnesium content—Direct current arc atomic emission spectrometry YS/T 281.17-2011 Methods for chemical analysis of cobalt—Part 17:Determination of aluminum,manganese,nickel,copper zinc,cadmium,tin,antimony,lead and bismuth content—Inductively coupled plasma mass spectrometry YS/T 281.18-2011 Methods for chemical analysis of cobalt—Part 18:Determination of sodium content—Flame atomic absorption spectrometry YS/T 281.19-2011 Methods for chemical analysis of cobalt—Part 19:Determination of calcium,magnesium manganese,iron,cadmium,zinc content—Inductively coupled plasma atomic emission spectrometry YS/T 281.20-2011 Methods for chemical analysis of cobalt—Part 20:Determination of oxide content—Impulse infrared absorption

YS/T 281.3-1994