Analysis of Chloral Hydrate and Haloacetonitriles

Introduction

The tap water is disinfected with chlorinating agents, and the behavior of chlorination byproducts is attracting attention. The Drinking Water Test Method of Japan revised in July 2001 stipulates the internal standard method using 1,2,3-trichloropropane for measuring chloral hydrate and haloacetonitriles generated as byproducts of disinfection. Haloacetonitriles, chloroacetonitrile and bromochloroacetonitrile were recently added in this revision. Chloral hydrate and haloacetonitriles can be analyzed simultaneously. This Application News introduces an example of analyzing chloral hydrate and haloacetonitriles, including chloroacetonitrile and bromochloroacetonitrile, by the internal standard method using GC/MS.

March 29, 2004 GMT