3results about How to "Overcome mutual interference" patented technology

The invention discloses a method for removing and comprehensively recycling thiocyanate radicals in high-concentration cyanide-containing wastewater acidizing fluid, and belongs to the technical field of metal refining. The method comprises the following steps: carrying out solid-liquid separation on high-concentration cyanide-containing wastewater acidizing fluid, adding excessive iron powder into filtrate, firstly introducing a low-temperature soluble zinc salt weak acid solution into overflowing mixed gas to fully absorb H2S and HCN gas in the mixed gas to generate ZnS and Zn (CN) 2 turbid liquid, and then introducing a sodium hydroxide strong alkaline solution to further absorb the ZnS and Zn (CN) 2 turbid liquid to ensure that H2S and HCN gas which are not completely absorbed does not overflow. Adding concentrated sulfuric acid into the ZnS and Zn (CN) 2 turbid liquid, stirring for reaction, absorbing overflowing HCN gas by using alkali liquor, and filtering the turbid liquid after reaction to obtain ZnS filter residues and Zn < 2 + > filtrate; and filtering the acidizing fluid which fully reacts with the iron powder, recycling the residual iron powder, adjusting the pH value of the filtrate to be more than 11, filtering out the precipitate of iron hydroxide, and returning to the cyanogen-containing production water system. The invention realizes the recovery of CN <-> in SCN <-> and realizes the absorption and separation of H2S and HCN gas.

This invention provides an information recommendation method, apparatus, device, and storage medium. The method involves acquiring sequence feature data corresponding to information to be recommended, where the sequence feature data is collected when a user interacts with the information. The method then determines the category corresponding to the sequence feature data; determines the attention information corresponding to the sequence feature data for each category; determines the relevance information between the information to be recommended and the user based on the sequence feature data and the attention information corresponding to the category; and recommends the information to the user based on the relevance information. This invention, while ensuring sufficient cross-category interaction, avoids the risk of information intrusion between sequence feature data from different categories, thereby enabling more accurate modeling of user interests and improving the accuracy of the recommendation algorithm.

The present invention discloses a detection method for simultaneously determining a variety of phthalates, and relates to the technical field of chemical analysis. The method comprises the following steps: using dioctyl phthalate, di-n-butyl phthalate, and butyl benzyl phthalate as standard substances, and then mixing each standard solution in a certain proportion to form a mixed standard solution; establishing an MLR-spectrophotometric concentration prediction model; using the prediction model to determine the concentrations of dioctyl phthalate, di-n-butyl phthalate, and butyl benzyl phthalate in an unknown concentration solution. The present invention combines multiple linear regression analysis with spectrophotometry, can overcome the problems of spectral overlap and mutual interference between components, and provides a simple and convenient chemometric method for the simultaneous determination of multiple PAEs by spectrophotometry, which can be applied to environmental monitoring and automatic analysis of plasticizers in actual work.