Automated analysis for water alkalinity

摘要: As a result of governmental regulations and environmental interest, determination alkalinity in natural water has become routine analysis. Tests were performed to find conditions suitable for analysis at both low high concentrations. Results using the Technicon AutoAnalyzer (TAA) Coulter Kem-O-Lab, Industrial Model (IKL) compared with those obtained by titration. The titration method greater reproducibility than either two automated methods, but it is much slower. About 8 h are required set 80 samples, whereas IKL TAA take less that 2h 80. Also, once standardization completed, instruments require almost no attention. equally reproducible, i.e., coefficient variation was 2% four or more samples analyzed on separate days. largest errors occur when sample containing follows one alkalinity. references, 2 figures, 3 tables.