RFQ: Procurement of Ammonia and Amines in Biomethane Analyser

The National Physical Laboratory [NPL] requirement is for a gas chromatography system for the quantitative analysis of ammonia in biomethane. The purpose of the system is to analyse reference gas standards and low-volume samples at close to atmospheric pressure. The system must be able to provide matrix independent quantification of the following measurands within a single analytical method: Measurand Limit of quantification required (μmol/mol) Repeatability of measurement at 10 μmol/mol (%) Ammonia ≤10 ≤5 No...