GB/T 4325.18-2013 Methods for chemical analysis of molybdenum.Part 18:Determination of vanadium content.N-benzoyl-N-phenylhydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry (English Version)
This part of GB/T 4325 specifies the determination method for the amount of vanadium in molybdenum. This part applies to the determination of vanadium content in molybdenum powder, molybdenum bar, molybdenum trioxide and ammonium molybdate. The measurement ranges of method 1 and method 2 are both 0.000 5%~0.010 0%.
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GB/T 4325.18-2013 history
2013GB/T 4325.16-2013 Methods for chemical analysis of molybdenum.Part 16:Determination of potassium content.Flame atomic absorption spectrometry
1984GB/T 4325.18-1984 Methods for chemical analysis of molybdenum--The atomic absorption spectrophotometric method for the determination of potassium content
GB/T 4325.18-2013 Methods for chemical analysis of molybdenum.Part 18:Determination of vanadium content.N-benzoyl-N-phenylhydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry has been changed from GB/T 4325.20-1984 Methods for chemical analysis of molybdenum--The N-benzoyl-N-phenylhydroxylamine photometric method for the determination of vanadium content.