Abstract: The utilization of a specific preconcentration protocol within an automated, on-line drinking water analysis method to amplify detection levels of individual halo acetic acids is provided. The proposed sequential injection analysis procedures allow for measuring such levels in drinking water samples from remote locations with post-column reaction of ion chromatography (PCR-IC). The novel remote preconcentration method injects such known concentrations via a syringe at regular intervals in a manner to provide a baseline measurement that accords a reliable comparison with the unknown amounts present within the drinking water samples at issue. In such a manner, the on-line, remote system provides the necessary reliability for a water utility or like entity on which to base any further needed water treatment activities without having to perform such measurements in a distinct lab setting.

Abstract: The present invention relates to the provision of a portable kit that permits reliable and quantifiable analysis of trihaloamethanes and haloacetic acids within drinking water samples utilizing a hand-held (portable) fluorescing detection instrument for simultaneous measurements of such species. With the necessity to chlorinate drinking water to remove harmful bacteria and other potential toxins, trihalomethane and haloacetic acid byproducts are generated during such a disinfecting procedure that may harm humans after consumption as well due to highly suspect carcinogenicity. A reliable manner of measuring such drinking water supplies for such disinfectant byproduct levels is highly desirable, particularly through the utilization of a relatively inexpensive analytical instrument for such a purpose.