一二羟基苯甲胺检测标准

铁矿石 锡含量的测定 邻苯二酚紫-溴化十六烷基三甲胺分光光度法

Ultraviolet absorber-2-Hydroxy-4-n-octoxybenzophenone(UV-531)

Food contact materials - Polymer - Determination of 2-hydroxy-4-methoxy-benzophenon in food simulants - High performance liquid chromatography

Determination of thiamphenicol,florfenicol and florfenicol amine residues in animal-derived food for export-LC-MS/MS method

Determination of benzophenone and methyl p-hydroxybenzoate in aquatic products for export - LC-MS/MS method

Food contact materials - Polymer materials - Determination of 2,4-dihydroxybenzophenone in food simulants - High performance liquid chromatography

Fibre grade powder of para-phenylene terephthalamide

The methods for chemical analysis of zinc and zinc alloys--The determination of tin content--The phenylfluorone-cetyltrimethyla-mmonium bromide spectrophotometric method

Chemical analysis methods and determination of physical performance of alumina--Determination of vanadic oxide content--N-benzoyl-N-phenylhydroxylamine extraction photometric method

Maximum residue limits of alachlor,carbofuran,chlorothalonil,fenamiphos and metolachlor in peanuts

Method for chemical analysis of high pure indium—Determination of tin content—Benzfluorenone-cetyltrimethylammonium bromide spectrophotometric method

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