13 results about "Performic acid" patented technology

The present invention provides a method for producing carbon monoxide, which includes a step of generating carbon monoxide by a decomposition reaction of a raw material of at least one of formic acid or a formic acid alkyl ester in the presence of a solid acid catalyst. The solid acid catalyst has a BET specific surface area of 590 m 2 / g or less.

The invention relates to a kit for quantitative detection of IGF-1 (Insulin-like Growth Factor-1) and a preparation and detection method thereof. The kit comprises a calibrator, a quality control product, an internal standard solution, an immune enrichment solution, a dissociation solution, a leacheate, an eluent, a mobile phase 1 and a mobile phase 2. The complete IGF-1 protein can be fully automatically detected from top to bottom, and the sample treatment efficiency is remarkably improved; wherein the matrix liquid used for preparing the kit adopts human serum without endogenous IGF-1, so that the in-vivo environment can be simulated to the greatest extent, and the detection deviation caused by different matrixes is reduced; an eluent of the kit adopts a formic acid-hydrochloric acid mixed acid-acetonitrile system, the system can provide a mild ionization environment through formic acid, and hydrochloric acid synergistically stabilizes the synergistic effect of the pH value of the solution, so that the ion inhibition effect is reduced, the response signal of IGF-1 is improved, and the signal-to-noise ratio of detection is further improved.

This invention provides a dehydrogenation catalyst that enables the production of hydrogen by dehydrogenating formic acid using a continuous process with higher efficiency than conventional methods, as well as a polymer precursor that can optimally form the catalyst and a formic acid dehydrogenation catalyst formed therefrom. [Solution] The polymer precursor has a structure represented by the following general formula (1). TIFF2026073992000060.tif50163 (A and B are independently groups comprising a 5-membered or 6-membered heterocycle or oxime structure which may have substituents, Z is a 5-membered or 6-membered aromatic ligand, M is a Group 8 noble metal element, R 1 R is a hydroxyl group, an alkenyl group or alkynyl group having 1 to 12 carbon atoms, 2 (where is a halogen atom, hydrogen atom, formic acid, or water molecule, X is an anion, and n is a natural number between 1 and 12)

This invention relates to a kit for the quantitative detection of IGF-1 and its preparation and detection method. The kit includes calibrators, quality control materials, internal standard solution, immunoenrichment solution, dissociation solution, elution solution, mobile phase 1, and mobile phase 2. This invention enables fully automated top-down detection of intact IGF-1 protein, significantly improving sample processing efficiency. The matrix solution used in the kit preparation employs human serum with endogenous IGF-1 removed, maximally mimicking the in vivo environment and reducing detection bias caused by different matrix components. The elution buffer uses a formic acid-hydrochloric acid mixed acid-acetonitrile system. This system provides a mild ionization environment through formic acid, and the synergistic effect of hydrochloric acid in stabilizing the solution pH reduces ion inhibition effects, improves the IGF-1 response signal, and thus enhances the signal-to-noise ratio of the detection.

The invention discloses preparation of a defective zirconium-based metal organic framework and application of the defective zirconium-based metal organic framework in separation and purification of cyanidin anthocyanin, and belongs to the technical field of efficient extraction, enrichment and separation of natural active molecules. The preparation method comprises the following steps: firstly, preparing a zirconium-based HP-UiO-66X material by taking zirconium tetrachloride and terephthalic acid as a metal center and an organic ligand raw material respectively under a solvothermal condition; in the synthesis process, a certain amount of benzoic acid is added as a regulator, and then the benzoic acid is etched by formic acid to form defects. The synthesized defective UiO-66X material has a hierarchical porous structure, and different groups modified by the ligand can form hydrogen bonds and other interactions on anthocyanin, so that the adsorption performance of the HP-UiO-66X material on the anthocyanin is improved.

This invention relates to the field of sealing materials technology, specifically a rubber sealing material for security lenses and its preparation process. Alkali lignin nanoparticles are prepared using alkali lignin as a raw material, and then co-assembled with graphene oxide to obtain composite graphene oxide. This composite graphene oxide is then epoxidized with epichlorohydrin, followed by grafting of a fluorinated diamine compound using an epoxy-amine reaction. Using environmentally friendly materials oleic acid and 1,6-hexanediol as raw materials, esterification is first used to obtain the plasticizer 1,6-hexanediol oleate, which is then epoxidized. Following this, an epoxy-amine reaction is used to graft a fluorinated diamine compound, generating an oleic acid derivative as a plasticizer. Finally, epoxidized EPDM rubber is synthesized through in-situ epoxidation with formic acid and hydrogen peroxide as the raw material for EPDM rubber.

The application discloses a preparation method of lignin sulfonate and application of the lignin sulfonate in high-temperature dyeing of polyester, and belongs to the technical field of dye dispersants. The preparation method is as follows: SBA-15 after alkali etching is immersed in a precursor solution, and is subjected to aging, drying and calcination treatment; the obtained metal-loaded SBA-15 is immersed in a 3-mercaptopropyltrimethoxysilane toluene solution, and tetraethyl orthosilicate is added to perform a reaction, so as to obtain a silanization modification catalyst; the silanization modification catalyst is oxidized through a peroxymonosulfuric acid aqueous solution, so as to obtain a Mn-Cu@SO3H / SiO2 catalyst; lignin is added into deionized water, polyformaldehyde and the Mn-Cu@SO3H / SiO2 catalyst are added to perform a reaction, and sodium sulfite is added to perform a reaction, so as to obtain the lignin sulfonate. The prepared lignin sulfonate has excellent high-temperature dispersion stability, low fiber staining and high dispersing force characteristics, and can be applied to high-temperature dyeing of polyester fabrics.

The present application provides a method for producing carbon monoxide, which includes a step of generating carbon monoxide by a decomposition reaction of a raw material of at least one of formic acid or a formic acid alkyl ester in the presence of a solid acid catalyst in which the total pore volume of pores having a pore diameter of 2 nm or less is 0.23 cm 3 / g or less.

The invention relates to a method for reducing bacterial endospores in an aqueous fibre suspension comprising recycled cellulosic fibres, wherein the fibre suspension has an original endospore amount, preferably of ≥10 000 CFU / ml. The method comprises adjusting the pH of the fibre suspension to a pH value of ≤6.5, adjusting the oxidation-reduction potential (ORP) of the fibre suspension to an ORP value of ≥200 mV with a first oxidizing agent, and introducing an amount of performic acid as a second oxidizing agent to the fibre suspension for reducing the bacterial endospores to an endospore amount of ≤1000 CFU / ml.

Peroxyformic acid compositions for removal of biofilm growth and other contaminants and impurities from industrial processing hard surfaces are disclosed. In particular, peroxyformic acid compositions may be dosed on site and / or generated in situ for the reduction and prevention of biofilms on the hard surfaces. Methods of employing the peroxyformic acid compositions for removal of biofilm growth and other impurities such as aldehydes and alcohols from industrial CO2 effluent are also disclosed which beneficially provide ambient biofilm control and break down more rapidly than other peracids, allowing for extended runs between CIP cleaning, including a reduction and / or elimination of cleaning of the scrubbers and other industrial surfaces.

There are provided methods of treating edible matter comprising applying a composition comprising performic acid to the edible matter or a substrate therefor. Other embodiments are also disclosed.

This invention discloses a method for preparing raw bamboo fiber based on a performic acid / sodium sulfite composite system. The raw bamboo is treated with a performic acid and sodium sulfite composite system, achieving a lignin removal rate of 97-100% while minimizing damage to the bamboo fiber. The fiber strength after this treatment is significantly increased, making it suitable for textiles and other fields. The product of this invention combines the high-quality qualities of crude bamboo obtained through alkali treatment and redox principles, yielding spinnable raw bamboo monofilaments with a diameter of several hundred micrometers, high degree of delignification, good whiteness, and excellent strength.

There are provided methods of treating edible matter comprising applying a composition comprising performic acid to the edible matter or a substrate therefor. Other embodiments are also disclosed.