Development of the Split Type Ion Chromatograph

In the analysis of nuclear fuel process, the analysis of the anion content in the solution has always been a difficult problem. Ion chromatographs cannot be used directly for the measurement of anions in radioactive samples, so the split type ion chromatograph is necessary. The instrument is divided into two parts: the host and extension . The host is the part that is not in contact with the radioactive samples and is placed outside of glove box. The extension is the part that is in contact with the radioactive samples and is enclosed in glove box. The host and extension of instrument are connected by the lengthened wire, signal wire and eluent pipeline. The extension is mainly made of stainless steel, with the components of ion chromatograph regularly arranged on the stainless steel bracket. The split type ion chromatograph is installed in the glove box and the main performance indicators are tested. The baseline noise is less than 0.3%FS and baseline drift is less than 2.0%FS. The qualitative repeatability of the instrument is better than 0.02%, and the quantitative repeatability of the instrument is better than 0.7%. The split type ion chromatograph has a good application prospect in nuclear fuel process analysis.