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The analyzer uses an ion selective electrode (ISE) and uses dynamic standard reagent addition technology. Suitable for the determination of ammonia nitrogen, chloride, sodium, fluorine and other parameters that are often used in the selective electrode method. The time program of the Alert online analyzer can be adjusted arbitrarily to ensure that the sampling, analysis and cleaning can be fully completed. The analyzer uses mature wet chemical analysis methods and advanced microelectronic technology to ensure the reliability and repeatability of the results. The analysis can be carried out in full accordance with laboratory methods or national standard methods to ensure the accuracy of the results.