ABSTRACT
CONTENTS 26.1 Phthalates ......................................................................................................................... 729
26.1.1 Introduction....................................................................................................... 729 26.1.1.1 Sources and Significance................................................................ 729 26.1.1.2 Selection of Methods ...................................................................... 730
26.1.2 Extraction Gas Chromatographic/Mass Spectrometric Method .............. 730 26.1.2.1 General Discussion ......................................................................... 730 26.1.2.2 Sampling and Storage .................................................................... 731 26.1.2.3 Apparatus......................................................................................... 731 26.1.2.4 Reagents............................................................................................ 732 26.1.2.5 Extraction Procedures .................................................................... 734 26.1.2.6 Analysis Procedure: GC/MS Operating Conditions................. 738 26.1.2.7 Calculation ....................................................................................... 738 26.1.2.8 Quality Control................................................................................ 740
26.2 Other Possible Components in the Production of Polymers................................... 741 26.2.1 Acrylamide ........................................................................................................ 741 26.2.2 Vinyl Chloride................................................................................................... 741 26.2.3 Epichlorohydrin................................................................................................ 741 26.2.4 Styrene................................................................................................................ 742
References ................................................................................................................................... 742
26.1.1 Introduction
26.1.1.1 Sources and Significance
Plastic materials require the addition of a certain amount of plasticizer to obtain specific physicochemical and mechanical properties required for practical applications. Phthalates are common plasticizers used to impart flexibility to plastics, e.g., polyvinylchloride (PVC). They are released into the environment through volatilization and leaching from plastics and other sources. Their widespread usage coupled with their stability has led to phthalates being present as ubiquitous environmental contaminants [1].
