6 results about "Dipicolinic acid" patented technology

A water-soluble automatic dishwashing detergent pouch includes an automatic dishwashing detergent composition that is enclosed by a water-soluble film. The automatic dishwashing detergent composition includes dipicolinic acid and / or salt thereof; and from above about 0 g to less than about 8.0 g silicate salt, with the level of silicate salt being less than about 3.0 wt. % of the automatic dishwashing detergent composition. The weight ratio of dipicolinic acid and / or salt thereof to silicate salt is greater than about 5:1.

A water-soluble automatic dishwashing detergent pouch that contains the combination of dipicolinic acid and / or salt thereof together with polyaspartate.

The invention discloses a construction method, a construction structure and application of a picolinic acid electrochemical sensor based on an intramolecular DNA nano machine. The construction method comprises the following steps: preparing an X-type DNA nano structure, constructing a sandwich composite probe SSC, constructing an electrochemical sensing interface for detecting picolinic acid, and quantitatively detecting picolinic acid in a bacterial sample. According to the electrochemical sensor for detecting the dipicolinic acid, the reaction probe is immobilized by using an X-type nano bracket XSP, an intramolecular DNA nano machine is constructed, efficient signal output is performed through catalytic oxidation reduction cycle amplification, sensitive detection of the dipicolinic acid released by bacterial spores is realized, and the detection limit is as low as 7.4 pM. The research has important application value in the aspects of prevention, diagnosis and treatment of diseases such as anthrax.

The invention relates to the technical field of material analysis, relates to a low-temperature separation and sampling process for metal elements in a fluorine-containing polymer, and aims to solve the problem that the metal elements in fluorine-containing polymer particles are difficult to fully digest and avoid loss and interference during separation and sampling. The low-temperature separation and sampling process for the metal elements in the fluorine-containing polymer comprises the following steps: putting a fluorine-containing polymer sample, a grinding ball and a digestion solution into a digestion tank, and sealing; starting a ball milling digestion program; after the reaction is finished, filtering the reaction liquid, and fixing the volume to obtain a to-be-measured liquid for measuring the content of the metal elements; the digestion solution comprises a main digestion solution and an additive, and the main digestion solution comprises nitric acid and hydrogen peroxide; the additive comprises ammonium nitrate, dipicolinic acid and boric acid. According to the low-temperature separation and sampling process for the metal elements in the fluorine-containing polymer, provided by the invention, on the basis of the synergistic effect of mechanical ball milling and chemical digestion, fluorine-containing polymer particles can be fully digested at a relatively low temperature, and meanwhile, impurities can be prevented from being introduced under the closed condition of the digestion tank.

The present invention relates to a water-soluble automatic dishwashing detergent pouch that contains the combination of dipicolinic acid and / or salt thereof together with sulphonated carboxylate polymer.

The invention discloses a preparation method and application of a Ni-Eu-DPA three-dimensional coordination framework crystal material, and relates to a preparation method and application of a three-dimensional coordination framework crystal material. The problems that in the existing aromatic ketone alpha-H deuteration field, the photocatalytic light excitation state service life is short, the energy utilization rate is low, the reaction selectivity needs to be improved, the deuterium source is expensive, and the conditions are harsh are solved. The preparation method comprises the following steps: 1, dissolving Ni (ClO4) 2.6 H2O in water, then adding dipicolinic acid, heating and stirring to obtain a system A; 2, Eu (NO3) 3.6 H2O is dissolved in water, then picolinic acid is added, heating and stirring are conducted, and a system B is obtained; and 3, mixing the system A and the system B, transferring the mixture into a polytetrafluoroethylene reaction kettle for solvothermal reaction, and naturally cooling to room temperature to separate out light green flaky crystals. The photocatalyst is applied to the selective deuteration reaction of aromatic ketone alpha-H.