448 results about "Quinone" patented technology

The invention provides a three-dimensional network polymer gel electrolyte, a positive plate and a solid-state lithium battery. The three-dimensional network polymer gel electrolyte comprises 80-98% of an organic solvent, 5-15% of a lithium salt, 2-8% of lignosulfonate, 2-10% of a polymeric monomer and 2-8% of an ionic liquid, and the polymeric monomer is selected from acrylamide, polyethylene glycol dimethacrylate, 3-(methacryloyloxy) propyl trimethoxy silane or tetrahydrofurfuryl acrylate and the like. Under ultraviolet light, lignosulfonate can spontaneously generate quinonyl photochemical free radicals and hydroxyl photochemical free radicals in a mixed solution of ionic liquid and specific polymer monomers, and under the action of the photochemical free radicals, the lignosulfonate reacts with unsaturated double bonds on a polymer through phenolic groups, so that the photochemical free radicals are formed. The gel electrolyte with a three-dimensional network structure is formed, the mechanical strength can be improved, the growth of lithium dendrites in a lithium metal battery can be inhibited, and the metal lithium battery containing the gel electrolyte has excellent cycle life and safety performance.

The invention discloses a moisturizer prepared from a lysate extract produced by fermentation of bacillus subtilis. The hydroxydecyl ubiquinone is identified in Y-3FLE, and the yield of the hydroxydecyl ubiquinone is 0.45 mu g / g after the hydroxydecyl ubiquinone is cultured for 4 days, so that the quinone substances are identified in the Halophilic bacteria in the Yuncheng Salt Lake for the first time. The Y-3FLE is prepared by adopting absolute ethyl alcohol as a solvent, the oxidation resistance of the Y-3FLE is investigated through an in-vitro experiment, and a result shows that the Y-3FLE is relatively high in reducing capacity and relatively high in oxidation resistance. A human body closed patch test result shows that the Y-3FLE has no obvious irritation to human skin. The method is applied to the moisturizer, and human body efficacy evaluation is carried out through a multi-probe skin tester. Results show that the moisturizer added with 1% of Y-3FLE has multiple remarkable effects of moisturizing, repairing, nourishing and the like.

The invention discloses a hard carbon material and a preparation method thereof, a negative plate and a battery, at least part of the surface of the hard carbon material comprises oxygen-containing functional groups, the oxygen-containing functional groups comprise first oxygen-containing functional groups and second oxygen-containing functional groups, the molar percentage sigma of the first oxygen-containing functional groups to the oxygen-containing functional groups is 62% lt; sigma < = 95%; wherein the first oxygen-containing functional group is carbonyl and / or hydroxyl; the second oxygen-containing functional group is a quinonyl group and / or an ether bond. The hard carbon material provided by the invention has more reversible sodium storage active sites, so that the specific capacity and the first-circle coulombic efficiency of the battery are favorably improved.

The invention relates to the field of polyimide materials, in particular to a positive photosensitive polyimide photoresist, a polyimide film and application of the positive photosensitive polyimide photoresist and the polyimide film. The positive photosensitive polyimide photoresist with excellent performance can be prepared by taking novel water-soluble polyamic acid ester with good dielectric property, low water absorption, heat resistance and the like as film-forming resin and combining the film-forming resin with the quinonediazide compound photosensitive component, the silane coupling agent and the organic solvent; the main film-forming component polyamic acid ester is a corresponding water-soluble polyimide precursor synthesized by using a series of simple and easily available polymeric monomers, and the realization of the water solubility is not limited to specific groups such as hydroxyl, carboxyl and the like in molecules. The photoresist has the advantages of high light sensitivity, high resolution, good thermal stability and chemical resistance, good heat and humidity resistance, good adhesion to various substrates and the like, an alkaline aqueous solution can be used as a developing solution, the loss of a film in a non-exposure area in the developing process is low due to low water absorption of the alkaline aqueous solution, and the developing time is short.

The invention discloses a composition for delaying oxidation of a phenolic hydroxyl compound, which comprises a protective agent, a stabilizer and a protective agent, and the mass ratio of the protective agent to the stabilizer to the protective agent is (0.01-0.3): (0.01-3): (0.005-5). According to the composition for delaying oxidation of the phenolic hydroxyl compound, hydroxyl in the phenolic hydroxyl compound is influenced by a benzene ring, so that the activity is enhanced, and the phenolic hydroxyl compound is easily oxidized into quinones with different colors. The composition comprises a protective agent, a stabilizer and a protective agent which can form a triple protective cover to delay the oxidation of the phenolic hydroxyl compound. Wherein the protective agent can be complexed with metal ions to reduce the catalytic action of trace iron or other heavy metals in the system on the oxidation reaction, so that the generation rate of free radicals is reduced; hydrogen bonds are formed between the stabilizer and the phenolic hydroxyl compound, so that the probability that the phenolic hydroxyl group is attacked by free radicals is reduced, and the oxidation reaction of the phenolic hydroxyl compound is delayed; the protective agent has a certain electron donor capability and is competitively combined with free radicals, so that the free radicals become relatively stable, attack of the free radicals on phenolic hydroxyl groups is interrupted, oxidation reaction is inhibited, the thermal stability of phenolic hydroxyl compounds is greatly improved, and discoloration reaction is delayed.

The invention provides a composite positive plate, a lithium ion battery and a preparation method, and relates to the technical field of lithium ion batteries, the composite positive plate comprises a current collector, a ternary material layer and a quinone polyimide layer; the ternary material layer is located between the current collector and the quinone polyimide layer; the quinonoid polyimide layer comprises quinonoid polyimide and a lithium supplement agent. According to the invention, the ternary material and the quinonoid polyimide are matched, the foil is coated with the ternary layer and the quinonoid polyimide layer at the same time by using a double-layer coating technology, and then the foil is dried and cut to prepare the novel double-layer positive plate, so that the safety performance of the battery can be improved while the relatively good electrochemical performance of the ternary material is maintained.

The invention discloses a bacterial strain and a method for producing pyrroloquinoline quinone. The strain is pseudomonas putida N1-1 which is preserved in the China General Microbiological Culture Collection Center on January 2, 2025, the preservation number is CGMCC NO.33266, and the preservation address is Institute of Microbiology, Chinese Academy of Sciences, No. 3, No.1 yard, West Beichen Road, Chaoyang District, Beijing. The strain is separated from myxomycete. The bacterial strain is inoculated into a fermentation culture medium, standing fermentation culture is carried out for 7 days at room temperature under the dark condition, a fermentation product is obtained and filtered, fermentation filtrate containing pyrroloquinoline quinine is obtained, and the yield of pyrroloquinoline quinine reaches 12.21 mg / L.

The invention belongs to the field of water treatment, and particularly relates to a graphene-based quinone mediator membrane as well as a preparation method and application thereof. The graphene-based quinone mediator membrane comprises a membrane matrix, and graphene, amino imidazopyridine and humus which are dispersed in the membrane matrix, the membrane substrate is made of polyvinylidene fluoride / butadiene, the polyvinylidene fluoride / butadiene is a random copolymer of polyvinylidene fluoride and butadiene, and an anthraquinone modification unit is bonded on a butadiene structural unit of the random copolymer. The graphene-based quinone mediator membrane provided by the invention has very high initial denitrification rate and over-time denitrification rate.

The invention relates to the technical field of biochar preparation and sewage denitrification, in particular to a preparation method of quinone-rich biochar, a product and application of the quinone-rich biochar in strengthening iron-nitrogen circulation. The preparation method of the quinone-rich biochar comprises the following steps: drying, crushing and pyrolyzing a biomass material to obtain biochar; the biochar is soaked in an anthraquinone-2-sodium sulfonate solution, then filtering, washing and drying are conducted, and the quinone-rich biochar is obtained. According to the preparation method of the quinone-rich biochar, the biochar and the quinone-rich biochar are prepared by using aquatic plant yellow acorus calamus residues as raw materials, and reference is provided for resource utilization of aquatic plant biomass. The invention further provides a method for improving iron circulation-nitrogen conversion, the quinone-rich biochar has high quinonyl functional group content, and the iron circulation-nitrogen conversion efficiency can be remarkably improved by coupling the quinone-rich biochar with zero-valent iron.

The invention discloses a method for extracting a p-phenylenediamine antioxidant in a liquid sample and application of the p-phenylenediamine antioxidant. The p-phenylenediamine antioxidant comprises N-(1, 2, 4-trimethyl-1, 3-pentanediol) the organic solvent is at least one of N, N '-diphenyl-1, 3-dimethyl butyl)-N'-phenyl p-phenylenediamine, N-cyclohexyl-N '-phenyl p-phenylenediamine, N-isopropyl-N'-phenyl-p-phenylenediamine, N, N '-diphenyl-1, 4-phenylenediamine, N, N'-di-2-naphthyl p-phenylenediamine and 2-((4-methylpentane-2-yl) amino)-5-(phenyl amino) cyclohex-2, 5-diene-1, 4-diketone. According to the method, liquid-liquid extraction which is simple and efficient to operate, low in cost and good in repeatability is adopted as a sample pretreatment method, and is combined with an isotope label method and an ultra-high performance liquid chromatography-tandem mass spectrometry technology, so that separation and qualitative and quantitative detection of six p-phenylenediamine antioxidants and quinone derivatives in a sample are realized; meanwhile, the sensitivity is high, the quantity of isotope internal standards is small, the solvent loss is small, and the actual detection requirement is met.

The invention discloses a phenanthro [9, 10-d] imidazole quaternary ammonium salt derivative as well as preparation and antibacterial application thereof. According to the series of compounds, phenanthro [9, 10-d] imidazole quaternary ammonium salt derivatives which are novel in structure and good in antibacterial activity are prepared by taking phenanthro quinone as a lead compound and modifying the structure of phenanthro quinone, the structural general formula of the phenanthro [9, 10-d] imidazole quaternary ammonium salt derivatives is shown in the specification, and R is selected from H, C6-C14 alkyl or C3-C8 alkylene. The phenanthro [9, 10-d] imidazole quaternary ammonium salt derivative prepared by the invention has a relatively good antibacterial effect on gram-positive bacteria such as staphylococcus aureus S.aureus ATCC 29213 and various clinical methicillin-resistant staphylococcus aureus (MRSA), meanwhile, the water solubility is improved, the biotoxicity of a parent body is reduced, and the phenanthro [9, 10-d] imidazole quaternary ammonium salt derivative has relatively high yield and is suitable for industrial production. The compound is expected to be further developed into a clinical candidate antibacterial drug. # imgabs0 #

The invention relates to the technical field of microbial metabolism engineering, in particular to a corynebacterium glutamicum producing strain for efficiently producing D-pantothenic acid as well as a construction method and application of the corynebacterium glutamicum producing strain. The construction method specifically comprises the following steps: (1) by taking wild corynebacterium glutamicum ATCC 13032 as a chassis, weakening ilvA, and constructing DPA1 through mutation expression; (2) knocking out the quinone pyruvate oxidoreductase and inserting a panBCE gene expression cassette into the quinone pyruvate oxidoreductase to construct DPA2; (3) introducing and using a pEC-xk99E overexpression plasmid to screen and express Escherichia coli W3110, Bacillus subtilis 168, and endogenous acetohydroxy acid synthase, acetolactate isomerized reductoisomerase and 2-hydroxy acid dehydratase, and carrying out a step (2) of carrying out a step (3) of screening and expressing the Escherichia coli W3110, Bacillus subtilis 168, and endogenous acetohydroxy acid synthase, acetolactate isomerized reductoisomerase and 2-hydroxy acid dehydratase in the DPA2; and (4) under the control of a strong promoter, carrying out tandem overexpression on the screened ilvBNCD gene by using pEC-xk99E, constructing DPA3, and enhancing a pantothenic acid main synthesis pathway and an upstream pathway pulling force, thereby obtaining the corynebacterium glutamicum for efficiently producing D-pantothenic acid. The strain provided by the invention can produce D-pantothenic acid with high yield and high conversion rate by utilizing a carbon source, and has important industrial application value.

The invention discloses a quinonyl conjugated organic polymer photocatalyst as well as a preparation method and application thereof, and belongs to the technical field of preparation of photocatalyst materials. The quinonyl conjugated organic polymer photocatalyst disclosed by the invention is formed by imine bond connection formed by a phenanthrenequinone group-containing aldehyde monomer and an amine monomer through a Schiff base condensation reaction, and the photocatalytic efficiency is improved by constructing an electron donor block and an electron acceptor block to initiate a push-pull electron effect in a material. According to the photocatalyst, pure water and air are subjected to photocatalysis under the condition that a sacrificial agent is not needed, and hydrogen peroxide can be efficiently generated.

The invention provides alkenyl functionalized polyarylene ether as well as a preparation method and application thereof, the preparation method of the alkenyl functionalized polyarylene ether comprises the following steps: washing a dihydroxy-terminated polyarylene ether reaction solution with an alcohol-water solution, taking an organic phase, mixing the organic phase with a catalyst and an end-capping modifier for reaction, and obtaining the alkenyl functionalized polyarylene ether. And preparing the alkenyl functionalized polyarylene ether. Compared with the prior art, the alkenyl-modified polyarylene ether has the advantages that terminal group modification is directly carried out on the double-terminal hydroxyl polyarylene ether reaction liquid washed by alcohol water, the prepared alkenyl-modified polyarylene ether has better performance, the content of active groups (double bonds) is higher and reaches 1.8-2.1 mmol / g, the residual quantity of polar small molecular substances such as monohydric phenol, dihydric phenol, quinone and amine is lower, the curing and crosslinking density with other resins is higher, and the curing and crosslinking performance is better. And the prepared copper-clad plate has better thermal performance and electrical performance.

The invention relates to the technical field of refined cotton processing, in particular to an efficient and optimized refined cotton processing production method which comprises the following production steps: S1, preparing materials: selecting cotton linters as raw materials; s2, cotton opening is conducted, cotton linters are placed on a feeding port of a cotton opener, and equipment is started for cotton opening treatment; s3, preparation of a cooking agent: taking quinone and 2-methylquinone as assistants, putting the assistants into sodium hydroxide, sodium carbonate and amino acid salt, and mixing and stirring to prepare the cooking agent; and S4, cooking treatment: putting the cotton linters into the prepared cooking agent, cooking, and reacting sodium hydroxide with cellulose. By regulating and controlling the biological thallus glycolysis process, directional control over the polymerization degree of the product is achieved, the range of the polymerization degree is narrowed, the fiber reaction uniformity is improved, the fluctuation range of the polymerization degree of products of the same specification is smaller than 80, the impurity removal efficiency is improved, the content of impurities, ash and metal ions is reduced, efficient impurity removal and refining are achieved, and the quality of processed refined cotton is improved.

The invention relates to the technical field of battery energy storage, in particular to a negative electrode electrolyte of a zinc-iron flow battery and the zinc-iron flow battery. The invention provides a negative electrode electrolyte of a zinc-iron flow battery. The negative electrode electrolyte is prepared from the following raw materials: a zinc-based redox active substance, a supporting electrolyte, a quinone molecular additive and a solvent, wherein the redox potential of the quinone molecular additive is higher than that of the zinc negative electrode under the same condition. According to the negative electrode electrolyte provided by the invention, dead zinc which loses electric contact can be converted into zinc with electrochemical activity again by utilizing the mediation effect of the anthraquinone derivative additive, namely the reutilization of the dead zinc in the zinc-based flow battery and the recovery of the lost capacity are realized through the redox targeting reaction between the anthraquinone derivative and the dead zinc; therefore, the cycle life of the zinc-iron flow battery is obviously prolonged.

According to the cell fixing liquid, phenol oxidase is used for catalyzing phenol to be oxidized into a quinone structure, the quinone structure reacts with protein amido to form light covalent immobilization, cell immobilization is achieved, a stable hydration environment and membrane protection are provided through the ionic liquid solvent choline dihydrogen phosphate, a phosphate-free buffer system is provided, and cell immobilization is achieved. Therefore, a novel cell fixing liquid is obtained, the cell structure integrity required by cell imaging analysis is effectively reserved, meanwhile, cell staining fluorescence signal interference is avoided, and therefore the accuracy of cell counting and cell imaging analysis is ensured.

The invention relates to the technical field of organic photoelectric materials, and particularly discloses a non-condensed ring small molecule acceptor material based on a quinonoid structure as well as a preparation method and application of the non-condensed ring small molecule acceptor material. According to the invention, easily available 1, 4-diacetyl piperazine-2, 5-diketone is used as a center, an alkyl chain and Ar are used for modification, EG is used as an end group, the non-condensed ring A-D-A '-D-A type structure acceptor material based on a quinone structure is constructed, and the general formula is shown in the specification. Wherein the PCE of the acceptor material which is modified by bithiophene and takes 2-(3-ethyl-4-oxothiazolidine-2-subunit) malononitrile as a terminal group reaches 15%. The non-condensed ring small molecule acceptor material based on the quinonoid structure is simple in synthesis process, and an effective strategy is provided for solving the problem of the overall performance of an organic solar cell.

The invention provides a farnesene composite polymerization inhibitor and a use method thereof, and the farnesene composite polymerization inhibitor comprises five components: a quinone methyl compound, a phenolic compound, substituted 2, 2, 6, 6-tetramethylpiperidine-1-oxygen free radical, citric acid and a solvent isopropyl myristate. Wherein the retarder is a quinone methyl compound and a phenolic compound, the true polymerization inhibitor is substituted 2, 2, 6, 6-tetramethylpiperidine-1-oxygen free radical, the synergist is citric acid, the solvent is isopropyl myristate, the quinone methyl compound is small in toxicity, the synergist is low in price, and the environmental protection property and economical efficiency of the polymerization inhibitor can be effectively improved. According to the invention, the induction period of the polymerization inhibitor can be effectively prolonged, farnesene oxides and dimers are reduced, the formation of high polymers is blocked, the rectification yield of farnesene is improved, and the polymerization inhibitor has good polymerization inhibition and environmental protection properties. The composite polymerization inhibitor provided by the invention is used in the rectification process of farnesene, and can be popularized to the transportation, storage and use processes of farnesene so as to improve the purity of farnesene.

The invention discloses a para-substituted heptamethine quinone cyanine dye as well as a synthesis method and application thereof, the structural general formula of the para-substituted heptamethine quinone cyanine dye is shown as I, that is, by introducing a specific quinone structure and a substituent group, the near-infrared light absorption and triplet excited state generation capability is optimized. The dye efficiently absorbs light within the wavelength range of 600-700 nanometers, the intersystem crossing efficiency is remarkably improved, and the photo-initiation effect is enhanced. According to the dye, heavy atoms are not used, and the solubility and the environmental protection property are improved. The synthesis method is simple, low in cost, mild in condition and suitable for large-scale production. The key steps comprise formation of quaternary ammonium salt, preparation of a condensing agent and synthesis of a final product, and parameters of each step are optimized to ensure high yield. The dye is suitable for photodynamic therapy, photoinitiation of photopolymerization materials, biological imaging and the like, and has a wide application prospect.

The present invention describes a composition comprising an effective amount of a combination of two or more components selected from acacetin, ACT1 peptide, α-lipoic acid, alprostadil, anisomycin, apigenin, ascorbic acid, astragalus, berberine, β-lapachone, β-hydroxy-β-methylbutyrate, bacopa monnieri, catechins, catechols, chamomile, chrysin, coumestrol, curcumin, dinitrophenol, dinoprost, ellagic acid, (-)-epigallocatechin gallate, green tea extract, fisetin, genistein, ginsenoside RE, glabridin, 18-α-glycyrrhetinic acid, 18-β-glycyrrhetinic acid, glycyrrhizin, hydroquinone, isoquercetin (EMIQ), shan Phosphate, black bean anthocyanins, leucine, lithium, luteolin, luteolin, luteolin, melatonin, menadione, 1‑methylnicotinamide (MNA), methyl salicylate, myricetin, nicotinamide adenine dinucleotide, nicotinic acid (vitamin B3), nicotinamide (NAM), nicotinamide mononucleotide (NMN), nicotinamide riboside (NR), nicotinic acid adenine dinucleotide (NaAD), nicotinic acid mononucleotide (NaMN), parsley, phenylephrine, pokeweed mitogen, 15‑Δ prostaglandin J2, puromycin, quercetin, quinolinic acid, retinoic acid, trichostatin A, troxerutin, rutin, tryptophan, vitamin D3, withaferin A, wortmannin, and zinc (including its salts).

Redox active S-linked polymers, vulcanized matrices, and related composites, compositions, electrode materials, electrodes, and related electrode chemical cells, batteries, methods, and systems are described. In particular, polymers and related compositions, composites, electrode materials and electrodes having the following S-links are described: a redox potential of up to 3.5 V and a capacity of up to 800 mAh / g or greater relative to the Li / Li + electrode potential under standard conditions. More particularly, redox active S-linked polymers, vulcanized matrices and related composites and compositions are provided as electrode materials for the cathode of an electrochemical cell further comprising a Li anode and a non-aqueous electrolyte.

The present invention discloses an organic electron acceptor containing a carbazole side chain and its application in solar cells. The organic electron acceptor containing a carbazole side chain has a structure shown in the following formula: #imgabs0# wherein R1 and R2 are independently a linear or branched alkyl group containing 1-18 carbon atoms, and A is an electron-withdrawing functional group. The present invention uses a non-fully fused ring structure based on trithiophene as the central conjugated skeleton of the organic electron acceptor, introduces a carbazole group as a side chain, prevents excessive elevation of the molecular HOMO energy level, and inhibits the internal rotation between the trithiophene rings connected by single bonds through its rigid large steric effect, thereby ensuring the planarity of the acceptor molecule, regulating the stacking between molecules, and simultaneously inhibiting the aromatic amine group from inducing the molecular skeleton to form a quinone structure, thereby improving the molecule's resistance to photooxidation.

The invention belongs to the field of microbial fermentation, and particularly discloses a method for fermenting astragalus membranaceus by lactobacillus plantarum. The method comprises the following steps: S1, crushing and sterilizing astragalus membranaceus; s2, inoculating lactobacillus plantarum LP-301; and S3, carrying out fermentation culture. After astragalus membranaceus is fermented by the lactobacillus plantarum LP-301, the contents of substances such as flavonoids, quinones and terpenes in a fermentation product are remarkably increased, so that the lactobacillus plantarum LP-301 can be used for preparing antioxidant products or anti-inflammatory products and has a relatively high application value.

The invention provides a diaphragm and a secondary battery, and belongs to the technical field of secondary batteries, and the diaphragm comprises a base membrane and a coating. Wherein the coating is arranged on one surface, facing the positive pole piece, of the base film, and the coating comprises an electroactive material and a binder; the electroactive material comprises at least one of a quinone derivative, a phenazine derivative, an imide derivative and a phenothiazine derivative. The electroactive material in the diaphragm coating can be dissolved in the electrolyte after the environment temperature reaches the thermal safety critical temperature, and reacts with the positive and negative active materials, so that the charge state of the battery is quickly reduced, and the thermal runaway of the battery is inhibited or even avoided.

Electrode material comprising a quinone, wherein the quinone comprises at least one and preferably two hydrophobic functional groups, preferably selected among an aliphatic group and most preferably a branched alkyl group.

The invention provides an acrylamide generation inhibitor and a method for inhibiting acrylamide generation. The acrylamide inhibitor is syringic acid, vanillic acid or sinapic acid. The syringic acid and the vanillic acid can passivate polyphenol oxidase in the food processing process and prevent polyphenol oxidase from oxidizing polyphenol in food into quinone, and the sinapic acid can directly inhibit quinone generated by oxidizing polyphenol, so that the content of Maillard reaction substrates is reduced, and the yield of the Maillard reaction products is improved. The structure of quinone is extremely similar to that of an intermediate product dicarbonyl compound in a path for producing acrylamide through Maillard reaction, so that quinone and asparagine can be subjected to Maillard reaction under a high-temperature condition to generate acrylamide. Therefore, the Maillard reaction is prevented by passivating the activity of polyphenol oxidase or inhibiting the generation of quinone oxidized by polyphenol, the generation of 2A cancerogen acrylamide easily generated in the high-temperature food processing process is further inhibited, the purpose of healthy diet is achieved, and a new thought is provided for controlling the generation of acrylamide in the food processing process.

A quinone-containing polymer includes repeating units of at least one of Formulas (I) to (IV) or a hydrogenated derivative thereof, as defined herein. Methods of manufacturing the quinone-containing polymer are also disclosed. The quinone-containing polymer can be useful in composites, electrode assemblies, electrochemical cells, gas separation systems, energy storage devices, and electrochromic devices.

The invention relates to the technical field of detection, and discloses a detection method and application of p-phenylenediamine antioxidants and quinone derivatives thereof, and the method comprises the following steps: taking a blood sample or a tissue sample, placing in a centrifuge tube, adding a recovery rate indicator solution and a glutathione solution, adding an extraction solvent, extracting twice, and combining the two solutions; centrifuging for 4-6 minutes at the speed of 3000-4500 rpm after each extraction, and combining the two extracts to obtain an extract to be detected; concentrating the to-be-detected extracting solution to be dry under soft nitrogen to obtain a to-be-detected concentrated dry substance; purifying with / without an HLB column; further concentrating the eluent, adding acetonitrile for redissolving, passing through an organic filter membrane, putting into a small sample injection bottle, and concentrating again; adding an internal standard solution to a constant volume to obtain a to-be-detected sample solution; and finally, detecting the sample solution to be detected by using an ultra-high performance liquid chromatography system and a mass spectrometer. According to the invention, the blank of no corresponding detection method for various PPDs and PPD-Qs in human blood and tissues is filled up.

Electrode material comprising a quinone, wherein the quinone comprises at least one and preferably two hydrophobic functional groups, preferably selected among an aliphatic group and most preferably a branched alkyl group.