With the 2025 Harbin Asian Winter Games underway, this international sports event has not only attracted global attention, but also put forward higher requirements for event organization and service guarantee. As a large-scale event that brings together Asia's top ice and snow athletes, ensuring the safety and health of the contestants and staff is one of the keys to its success. Among the many technical supports, Qingdao Puren Instrument Co., Ltd. and its independently developed portable ion chromatograph have become an important force in ensuring food safety, providing solid scientific and technological support for the successful holding of the Asian Winter Games.