Anti-VOC (volatile organic compound) interference formaldehyde detection method

• Main Authors: GAO WEIXUE, YANG HAO, SHAO JINGJING, LIU SONG, MA ZHEN, ZHANG JIAN, LIU YANG, WANG ZIDUAN, ZHAO ZENGYAN
• Format: Patent
• Language: Chinese; English
• Published: 14.06.2022
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses an anti-VOC (volatile organic compound) interference formaldehyde detection method. The method comprises the following steps: assembling a detector with an auxiliary sensor and a formaldehyde sensor; the indoor on-site formaldehyde gas detection method comprises the following steps: (1) starting up for preheating, heating to a detection temperature, and preheating for 3-4 minutes at a constant temperature; (2) starting detection, and fully contacting and reacting gas in a pump suction type collection chamber with the sensor array; and (3) calculating the comprehensive formaldehyde concentration value of the formaldehyde in the gas, calibrating and determining respective weights of the auxiliary sensor and the formaldehyde sensor in the field environment, and calculating the final formaldehyde concentration. By adopting the method, the indoor formaldehyde concentration can be more accurately measured in real time. 本发明公开了一种抗VOC干扰的甲醛检测方法，包括以下步骤：组装好带有辅助传感器和甲醛传感器的检测器；进行室内实地甲醛气体检测:①开机预热，加热至检