Tap water, drinking water, environmental monitoring, sanitation and epidemic prevention, quality management, petrochemical engineering, geologic survey, scientific research, the-third-party inspection and so on.

Anions: fluoride、silicate、chlorite、bromate、chloride、carbonate、bicarbonate、nitrite、selenite、bromide、chlorate、nitrate、phosphate、sulfite、sulfate、tellurate、selenate、arsenate、iodide、sulfide、cyanide、molybdate、tungstate、chromate、thiosulfate、lactate、formate、methylsulfonate、methylbenzenesulfonate、acetate、meleate、glyoxalate、propionate、butyrate、valerate、hydroxylacetate、tartarate、haloacetate、polyphosphate、pyruvate、malate、oxalate、benzoate、sorbate、glyphosate、diglycolate、succinate、cyclamate、acesulfame、alkylsulfonate. Cations: lithium、sodium、ammonium、potassium、rubidium、cesium、magnesium、calcium、 strontium、barium.、nickel、copper、lead、zinc、manaanese、cadmium.、chromium、ferrum(Ⅱ)、ferrum(Ⅲ).、hvdrazine、melamine、Dicyandiamide、methylamine、dimethylamine、trimethylamine、betaine.、choline、chloride、quaternary ammonium、cadaverine、putrescine、spermidine、spermine、histamine.