Provides methods for the determination of a number of non-metallic analytes by the use of ion chromatography (IC), which eliminates the need to use hazardous reagents. These analytes include: bromide; chloride; fluoride; nitrate; nitrite; phosphate; and sulfate. Also contained in this section are methods for IC with chemical suppression of eluent conductivity (4110B), single-column IC with direct conductivity detection (4110C), and a new method for IC determination of oxyhalides and bromide (4110D).