Yn. Makarovskaya et al., Solvent extraction-X-ray fluorescence determination of selenium and arsenic in drinking water, J ANALYT CH, 54(11), 1999, pp. 1031-1033
A method of manufacturing thin-film emitters from organic extracts based on
a block copolymer of polysiloxane and polycarbonate was proposed. A proced
ure was developed for the solvent extraction-X-ray fluorescence determinati
on of to 0.005 mg/L selenium and 0.0025 mg/L arsenic in drinking water (for
concentrations of arsenic or selenium of 0.05-0.1 mg/L, RSD = 5-8%; system
atic errors by the t test are insignificant.