Accession Number : AD0894934

Title :   A Rapid and Highly Sensitive Polarographic Analysis for Arsenic (III) in Drinking Water; Application to Determination of Arsenic in Potable Desert Groundwater Uncovers an Analysis Problem With These Waters.

Descriptive Note : Technical publication,

Corporate Author : NAVAL WEAPONS CENTER CHINA LAKE CA

Personal Author(s) : Whitnack, Gerald C. ; Brophy, Richard G. ; Martens, H. H.

Report Date : MAY 1972

Pagination or Media Count : 17

Abstract : A simple, rapid and extremely sensitive single-sweep polarographic method of analysis for arsenic in drinking water is presented. The method will determine as little as 5 ppb arsenic with a relative error of 5-10% of the actual concentration. The method is useful in the examination of well water, spring water, and other drinking waters that contain arsenic in very low quantities (50 ppb or less). The method is shown to give more reliable results on drinking water than the APHA accepted method for arsenic analysis. An accuracy investigation of the APHA method for arsenic in certain types of natural waters showed this method to be unreliable and pointed out an analysis problem on the determination of arsenic in potable desert groundwater. (Author)

Descriptors :   *POLAROGRAPHIC ANALYSIS), (*WATER SUPPLIES, ARSENIC, DETECTION, ACCURACY, SENSITIVITY, DESERTS, WATER WELLS, CALIFORNIA, VOLTAGE, PERMISSIBLE DOSAGE, WATER POLLUTION, COLORIMETRIC ANALYSIS, SILVER COMPOUNDS.

Subject Categories : Physical Chemistry
      Water Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE