TY JOUR TI Integral UV-spectrophotometric methods for determination of clopidogrel and sodium metamizole in flush water off industrial equipment KW clopidogrel KW sodium metamizole KW aqueous solution KW integral spectrophotometric determination KW area under the curve method KW flushing water off industrial equipment JO From Chemistry Towards Technology Step-By-Step AU Nikolaychuk, P.A. PY 2024 IS 5 PB Yaroslavl State Technical University