Determination of vitamin A in blood serum based on solid-phase extraction using cetyltrimethyl ammonium bromide-modified attapulgite
JOURNAL OF SEPARATION SCIENCE [2019]
Rongrong Xuan, Tingting Wang, Chunyan Hou, Xie Li, Ying Li, Yihui Chen, Yajie Gao, Dan Qiu, Xunwen Xiao, Lihua Zhang, Yukui Zhang