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152 results about "Dinitrophenol" patented technology

Dinitrophenols are chemical compounds which are nitro derivatives of phenol.

Method for treating hydrolyzed waste water and recovering resource in disperse blue production process

The invention provides a method for treating hydrolyzed waste water and recovering resource in a disperse blue production process, which comprises the following steps that: A) the pH value of the hydrolyzed waste water in the disperse blue production process is adjusted to between 2 and 3, the waste water is filtered, and filter cakes are dried to obtain a crude product 2,4-dinitrophenol of which the purity reaches more than 93.5 percent; B) filter liquor passes through an adsorption tower filled with styrene macroporous absorbent resin under the conditions that the temperature is between 10 and 50 DEG C and the flow rate is between 0.5 and 4.0 BV/h (BV is resin bed volume); C) 4 to 8 mass percent sodium hydroxide and water are taken as desorption agents to desorb and regenerate the macroporous absorbent resin adsorbed with the 2,4-dinitrophenol, the desorption temperature is between 40 and 90 DEG C, and the flow rate of the desorption agent is between 0.5 and 2.0 BV/h; and D) the pH of a desorbed eluent is adjusted to between 2 and 3 by 98 percent sulfuric acid, the eluent is filtered and dried, the crude product 2,4-dinitrophenol is recovered, the purity of the crude product 2,4-dinitrophenol reaches more than 93 percent, and the filter liquor of the eluent in the batch and eluent obtained in step C) in the next batch undergo cyclic operation of step D) together.
Owner:SOUTHEAST UNIV

Analytical method for detecting nitrate reductase activity in soil

The invention relates to an analysis method of testing the nitrate reductase activity in the soil, which includes the following steps: 1) n dried and screened soil samples are weighed, adopted and put into test tubes; 2, 4-dinitrophenol solution is added into the test tubes and mixed to be even; and then substrate potassium nitrate solution is added into n-1 test tubes and the same amount of distilled water is added into the other one test tube for sample comparison; glucose solution is respectively added into the test tubes, which is then supplemented by distilled water to be 5 to 10ml and cultivated under constant temperature; 2) the distilled water is added to supplement to 50 to 100ml; 3) potash alum saturated solution is added in to be oscillated and filtered; 4)the distilled water and a chromogenic reagent are added into the filtrate, and a light absorption value A is determined under 520nm; 5) the content of nitrite in the samples is calculated. The analysis method has the advantages of: 1) simplification of operation steps and reduction of the complicacy and uncertainty during the anaerobic culturing process; 2) reduction to dependency on the equipment requirements; 3) high accuracy and easiness in operation; 4) stable and reliably result, and good repeatability.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

Analysis method for fast detecting degradation rate of organophosphorus degrading bacteria

The invention relates to the technical filed of biological degradation of pesticide residue, in particular to an analysis method for fast detecting the degradation rate of organophosphorus degrading bacteria. The method comprises the following steps: inoculating organophosphorus degrading bacterial strains into an organophosphorus-inorganic salt culture medium according to the inoculating amount with the volume ratio of 5 percent to 10 percent for fermentation culture; carrying out centrifugation after the fermentation to obtain supernate which is a sample solution to be detected; adding 0.2 to 0.4 mL indicating agents of dinitrophenol into every 10 mL sample solution to be detected; then, adopting water for defining the volume to 50 mL; then, adding 10 percent sodium carbonate solution or 5 percent sulfuric acid solution into the solution; next, adding 5 mL molybdenum-stibium color developing resistant agents to be uniformly shaken after the solution become light yellow; adding water for defining the volume; placing the solution for 20 to 30 min for color development under the condition of room temperature; carrying out colorimetric determination at 700 nm after the color development; and checking and obtaining the corresponding phosphor content from a calibration curve. The ratio of the obtained phosphor content to the total phosphor concentration in organophosphorus farm insecticide is the degradation rate of the organophosphorus degrading bacteria. The analysis method of the invention can be used for direct analysis of biochemical samples without any pretreatment.
Owner:SHENYANG INST OF APPLIED ECOLOGY - CHINESE ACAD OF SCI

DNP and DNP Prodrug Treatment of Neuromuscular, Neurodegenerative, Autoimmune, Developmental, Traumatic Brain Injury, Concussion, Dry Eye Disease, Hearing Loss and/or Metabolic Diseases

A composition and method of treatment of neuromuscular, neuromuscular degenerative, neurodegenerative, autoimmune, developmental, traumatic, hearing loss related, and/or metabolic diseases, including spinal muscular atrophy (SMA) syndrome (SMA1, SMA2, SMA3, and SMA4, also called Type I, II, III and IV), traumatic brain injury (TBI), concussion, keratoconjunctivitis sicca (Dry Eye Disease), glaucoma, Sjogren's syndrome, rheumatoid arthritis, post-LASIK surgery, anti-depressants use, Wolfram Syndrome, and Wolcott-Rallison syndrome. The composition is selected from the group consisting of 2,3-DNP, 2,4-DNP, 2,5-DNP, 2,6-DNP, 3,4-DNP, or 3,5-DNP, bipartite 2,3-dinitrophenol, 2,4-dinitrophenol, 2,5-dinitrophenol, 2,6-dinitrophenol, 3,4-dinitrophenol, or 3,5-dinitrophenol (2,3-DNP, 2,4-DNP, 2,5-DNP, 2,6-DNP, 3,4-DNP, or 3,5-DNP) prodrugs; Gemini prodrugs, bioprecursor molecules, and combinations thereof. A dose of the composition for treatment of neurodegenerative diseases may be from about 0.01 mg/kg of body weight to about 50 mg/kg of body weight of the patient in need of treatment. A dose of the composition for treatment of metabolic diseases may be from about 1 mg/70 kg of body weight to about 100 mg/70 kg of body weight of the patient in need of treatment, and a maximum dose per day is about 200 mg/70 kg of body weight of the patient in need of treatment.
Owner:MITOCHON PHARMA INC +1

Method for measuring available phosphorus in planting soil

InactiveCN103499541AReduce analysis costsEnhanced Colorimetric Detection CapabilitiesColor/spectral properties measurementsWater bathsFiltration
The invention relates to a method for measuring available phosphorus in planting soil. The method is characterized by comprising the steps of (1) drawing a working curve; (2) weighing a soil sample of 0.5000g-1.0000g, putting the soil sample into a 150ml conical flask, adding NH4F and HCl extracting agents into the conical flask, shaking up the mixture, standing still for 1.5h at room temperature, carrying out dry filtration by non-phosphorus filter paper, and using a 100mL dry beaker to contain filtrate to be measured, wherein 40-45mL c(NH4F) is equal to 0.015mol/L, and c(HCl) is equal to 0.3mol/L; (3) moving 10.0mL of filtrate to be measured into a 25mL colorimetric tube, adding 2-5 drops of dinitrophenol indicator, HCl and NH3.H2O to adjust the test solution to be slight yellow, then adding 1.5mL-2mL of an antimony-molybdenum anti-mixing color developing agent into the test solution, diluting the test solution to the scale by distilled water, shaking up, developing in water bath at the temperature of 40-45 DEG C for 20min-30min, or standing still at the room temperature of 25 DEG C for 40min, cooling, measuring the light absorption value at a part with the wave length of 700nm on a spectrophotometer, and calculating the content of the available phosphorus in the sample by a regression equation of a working curve, wherein c(HCl) is equal to 0.5mol/L, and c(NH3.H2O) is equal to 0.5mol/L. The method is high in analysis speed, good in selectivity, high in sensitivity, low in analysis cost and suitable for popularization.
Owner:SUZHOU GUOHUAN ENVIRONMENT DETECTION
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