HE R, CHEN J, HUANG Z, YIN J, YANG G. Determination of Vanadium, Niobium and Tantalum by HPLC using 2-(2-Quinolinylazo)-Resorcin as Pre-column Derivatization Reagent. ajc [Internet]. 2010 Mar. 30 [cited 2024 Aug. 26];19(5):3851-6. Available from: https://asianpubs.org/index.php/ajchem/article/view/13289