Using imported high-purity PFA material, with extremely low background, smooth surface and no adsorption. The cavity is transparent and visible for easy observation. Pagoda condensation design, no water cooling, efficient acid production. Characteristics: 1)High purity acid preparation system anti-corrosion low background 2)Specification: 1L/2L/4L/5L/6L 3)Applicable experiments: semiconductor analysis,isotope analysis,trace element detection experiment 4)Applicable to HCL,HF,HNO3 in laboratory 5)Operating temperature: room temperature 250 6)Translucent and visible, low background, Low blank value of metal elements (Pb or U 0.01 ppd) No dissolution and precipitation.