求ASTM D7742

应助达人

ASTM D7742 -11 Standard Practice for Determination of Nonylphenol Polyethoxylates (NPnEO, 3 # n # 18) and Octylphenol Polyethoxylates (OPnEO, 2 # n #12) in Water by Single Reaction Monitoring (SRM) Liquid Chromatography/ Tandem Mass Spectrometry (LC/MS/MS)1