Determination of 70 liquid crystal monomers in indoor gas-particle-dust multi-medium based on ultrasonic extraction coupled with comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry - Kai Hua; Jiahao He; Xingtong Li; Congyi Zheng; Lingrui Ji; Qingyan Wu; Xi Chen; Ke Gao; Wei Wei; Liping Lu (Analytica Chimica Acta, 2025)