Ion Chromatography Systems, Autosampler and 10 Year Preventative Maintenance

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--Please note - outcome letters were issued to tenderers on 5th December 2025 informing them of the results of the procurement, their scores and feedback. These letters initiated the standstill period which is due to expire on 17th December 2025. Due to a system error with the Defence Sourcing Portal this notice could not be published on the same day, so some auto-generated dates may be incorrect in this notice. The correct date for the end of the standstill period is midnight on 17th December 2025 and contract award is expected to follow imminently.-- The Environmental and Industrial Hazards (EIH) Laboratory at the Institute of Naval Medicine requires two Ion Chromatography Systems to replace the current Ion Chromatograph which has reached the end of its useful life and to provide additional capability according to new requirements. The systems will primarily be used for analysis of anions in raw, potable and bottled water samples in accordance with the requirements of service doctrine1, 2, 3 and UK drinking water legislation4, 5, but other matrices will include environmental samples such as groundwater, surface water and wastewater. One Ion Chromatograph must be capable of analysing 9 anions (fluoride, chlorite, chloride, nitrite, chlorate, bromide, nitrate, sulphate and phosphate) using conductivity detection. The other Ion Chromatograph must be capable of analysing bromate in samples with elevated levels of chloride with post column derivatisation and absorbance detection. Specifically, post column addition of potassium iodide followed by detection of triiodide using a uv-vis detector. The systems must meet the requirements for trueness, precision and limit of detection detailed in The Water Supply (Water Quality) Regulations 2018. See Invitation to Tender for further details.

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