EXPEC Technology has continuously developed in flow analysis technology, and has mastered analysis technology platforms such as flow-injection and sequential-injection. At present, on the basis of flow-injection technology, various detection indicators such as ammonia nitrogen, total phosphorus, total nitrogen, permanganate index, volatile phenol, cyanide, sulfide, anionic surfactant, and hexavalent chromium have been developed. EXPEC launched a series of innovative products such as laboratory and portable, to meet the analytical application requirements of different fields such as environment, ocean, food testing, soil, etc.