The article describes an equipment for the complex determination of elements in the so-called «intermediate» solutions of spent nuclear fuel (SNF) WOKER. The equipment combines the functions of a densitometer, X-ray fluorescence analyzer and g-spectrometer, some of them can be performed in parallel. The problems of creating high-quality measuring channels of the WOKER and the results achieved are discussed. Particular attention is paid to the method of analysis implemented with the WOKER, which has been successfully used during several years in the radiochemical production of the «Mayak» Production Association.