The falling detection limits for element determination in trace analysis is boosting the significance of the purity of chemicals in order to prevent blank value problems, while at the same time reducing the cost of chemicals and consumables. The distillacid sub-boiling acid purification apparatus means that purest acids are always available. Starting with cost-effective quality (mostly p.a.), highly pure acids can be produced by any laboratory and even highly corrosive acids such as hydrofluoric acid can be purified.