GB/T 6730.47-2017(\u82f1\u6587\u7248)
铁矿石 铌含量的测定 氯代磺酚S分光光度法
HG/T 5393\uff5e5395-2018
SN/T 4014-2013
Determination of chloramine-B and chloramine-T residues in foods for export - GC-MS/MS method
GB/T 6730.47-2017e
Iron ores—Determination of niobium content—Sulfochlorophenol S spectrophotometric method
GB/T 6730.47-2017
Iron ores—Determination of niobium content—Sulfochlorophenol S spectrophotometric method
GB/T 223.40-2007
Iron, steel and alloy - Determination of niobium content - The sulphochlorophenol S spectrophotometric method
DB32/T 1540-2009
GB/T 6730.31-2017
Iron ores—Determination of vanadium—N-benzoyl-N-phenylhydroxylamine extraction spectrophotometric method
DB43/T 2195-2021
SN/T 3148-2012
Determination of benzoyl peroxide in food for export-HPLC
T/CHBAS 9-2021
T/CHBAS 12-2021
GB/T 18932.5-2002
Method for the determination of sulfacetamide,sulfapyridine,sulfamerazine,sulfamethoxypyridazine,sulfameter,sulfachloropyridazine,sulfamethoxazole and sulfadime-thoxine residues in honey--Liquid chromatographic method
SN/T 3875-2014
Food contact materials - Polymers-Determination of azodicarbonamide content - High performance liquid chromatography
GB/T 6609.10-2004
Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method
HB 5220.34-2008
Methods for chemical analysis of superalloys-Part 34:Determination of niobium content by sulphochlorophenol C photometric method
DB23/T 119-2001
GB/T 13747.18-2022
Methods for chemical analysis of zirconium and zirconium alloys—Part 18:Determination of vanadium content—N-benzoyl-N-phenyl hydroxylamine spectrophotometry and inductively coupled plasma atomic emission spectrometry
YS/T 575.12-2007
Methods for chemical analysis of bauxite—Part 12:Determination of vanadium pentoxide content—N-benzoy-N-phenythyroxy lamine photometric method
GB/T 20975.13-2008
Methods for chemical analysis of aluminium and aluminium alloys—Part 13:Determination of vanadium content—N-benzoyl-Nphenylhydroxylamine spectrophotometric method