The rapid development of industrial enterprises entails a significant increase in industrial waste, poisoning the atmosphere and water bodies. One of the sources of pollution is wastewater from enrichment plants. Their composition is complex and diverse, so effective analytical control of the content of toxic substances in them is not fully solved.

The widespread use of various substances in the flotation of minerals clogs wastewater, which, poisoning reservoirs, endangers the normal existence of wildlife.

Гидроксамовые кислоты получили применение в качестве эффективных флотореагентов и перспективны при экстрак­ционном выделении металлов. Анализ гидроксамовых кислот изучен К. Е. Истоминой и Л. А. Иониной. Количественное определение малых концентраций гсптилгидроксамовой кис­лоты в водных растворах проводилось следующим образом ... 

Очень малые количества сульфидов приходится определять в природных водах, сточных водах обогатительных фабрик и других предприятий. Упаривание таких растворов часто изме­няет их химический состав и требует продолжительного вре­мени ...

The use of a number of organic reagents used in analytical chemistry as flotation reagents - collectors deserves serious attention. The flotation properties of these substances are due to the content of certain functional groups in their composition, which have the ability to form intra-complex compounds. These substances due to the content of certain functional groups in their composition have the ability to form intra-complex compounds, which determines their flotation properties.

The usual methods of quantitative analysis in general do not allow to establish the phase composition of the mixture. Knowledge of the phase composition of carbonate rocks in a number of cases is of interest in geological surveys, technological processes of processing of these rocks, etc. So, for example, for a mixture of carbonate rocks quantitative analysis gives only the total content of calcium and magnesium, and to establish by this method the number of individual phases (calcite, dolomite and magnesite) in their combined presence is not possible.