一种基于Dionex IonPac（R）AS9-HC柱、碳酸盐洗脱液和抑制电导检测的新离子色谱（IC）方法被指定用于分析饮用水中的这些无机DBP阴离子和溴化物。EPA方法300.1是唯一获准用于分析饮用水中溴酸盐的分析方法，而EPA方法300.1和方法300.0均获准用于分析亚氯酸盐和溴化物。本文讨论了最近一项实验室间研究的结果，验证了这种新的IC方法。本研究旨在为一种新的ASTM试验方法开发精度和偏差数据，该方法在技术上等同于EPA方法300。 1（B）。将显示典型的单操作员方法性能数据，并给出试剂、饮用水和瓶装水中DBP阴离子和溴的低ug/L水平的实验室间方法偏差、So和St。包括8个参考文献、表格、图表。

A new ion chromatographic (IC) method based on a Dionex IonPac(R) AS9-HC column with a carbonate eluent and suppressed conductivity detection is specified for the analysis of these inorganic DBP anions, and bromide, in drinking water. EPA Method 300.1 is the only analytical method approved for the analysis of bromate in drinking water, while both EPA Method 300.1 and Method 300.0 are approved for the analysis of chlorite and bromide. This paper discusses the results of a recent interlaboratory study validating this new IC method. This study was conducted to develop precision and bias data for a new ASTM test method, which is technically equivalent to EPA Method 300.1(B). Typical single-operator method performance data will be shown and the interlaboratory method bias, So and St for low ug/L levels of DBP anions and bromide spiked in reagent, drinking and bottled waters are presented. Includes 8 references, tables, figures.