目录简介    |     Contents Foreword	 1	Scope	 2	Principle	 3	Reagent and standard solution	 4	Instruments and materials	 5	Analysis procedure	 6	Determination of lower limit of method, recovery rate and precision	 7	Test report	 Annex A (Informative) For the reversed -phase HPLC method of the stand sample of alkylphenol ethoxylates, please refer the retention time and chromatogram.	 Annex B (Informative) For the normal-phase HPLC method of the stand sample of alkylphenol ethoxylates, please refer the retention time and chromatogram.	 Annex C (Informative) API 4000 LC-MS/MS system electrospray ion source reference conditions	
 
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