The Dose-in Gradient expands the standard IC system to a gradient system. Using isocratic elution for separating the oxyhalides and the anions containing sulfur is very time-consuming. An 800 Dosino and a T-piece are used to expand the isocratic system to a binary gradient system. This is shown in the example of the determination of the standard anions, in addition to chlorate, thiosulfate, thiocyanate, and perchlorate.

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