61 results about "Pentetic acid" patented technology

The invention relates to a simple preparation method of antimony phosphate of a mixed morphological structure. Diethylenetriamine pentaacetic acid and antimony trichloride are sequentially dissolved in deionized water, and full stirring is carried out at the water bath condition of the temperature of 60 DEG C; then ammonium dihydrogen phosphate is added, full stirring is carried out, and a precursor mixed solution is formed; the obtained precursor mixed solution is poured into a polytetrafluoroethylene-lined stainless steel hydrothermal reaction still, a constant-temperature hydrothermal reaction is carried out for 10 h at the temperature of 160 DEG C, centrifugal washing and drying are carried out, and the product is obtained. The method is simple, easy to operate, environmentally friendly, low in cost and pure in product, prepared antimony phosphate can efficiently remove organic pollutants in water, and good application prospects are achieved. The photocatalytic activity of prepared antimony phosphate is obviously higher than that of commercial rutile TiO2.

The invention relates to preparation and novel photocatalysis application of an antimony phosphate nano superstructure. The preparation comprises the following steps: sequentially dissolving diethylenetriamine pentaacetic acid and antimony trichloride into de-ionized water and sufficiently stirring under a 60 DEG C water bath condition; then adding ammonium dihydrogen phosphate and sufficiently stirring to form a precursor mixed solution; filtering the precursor mixed solution to obtain a precursor solution and precursor sediment; standing the precursor solution in a 60 DEG C water bath for 10min to 20min to form a suspension system; pouring suspended clarified liquid at an upper part of the suspension system and all the precursor sediment into a stainless steel hydrothermal reaction kettle with a polytetrafluoroethylene lining and carrying out a constant-temperature hydrothermal reaction at 160 DEG C for 10h; centrifuging, washing and drying to obtain a product. The preparation method of the antimony phosphate nano superstructure is simple and prepared antimony phosphate has relatively good photocatalytic activity; types of photocatalysts, shape types of the antimony phosphate and preparation methods are expanded.

The invention discloses a double-excitation fluorescence probe and a preparation method and application thereof in detection of hydrazine in water. The preparation method includes: taking diethylenetriamine pentaacetic acid, acetic anhydride and pyridine, stirring and heating for 24h at 65 DEG C, cooling, filtering, washing and drying; well mixing obtained diethylenetriamine pentaacetic acid dianhydride with triethylamine, DMF (dimethyl formamide) and fluorescein, heating and stirring for 24h at a constant temperature of 100 DEG C, cooling, filtering, and drying; dissolving obtained diethylenetriamine pentaacetic acid-bis(fluorescein) into Tris-HCl / DMSO (10mmol.L<-1>, v / v=9:1) buffer solution with pH equal to 7.5, mixing with Tb(NO3)3.6H2O, and heating or placing for more than two hours toobtain a target product. Uric acid detection is realized by combination of Tb<3+>-dtpa-bis(fluorescein) as a double-excitation probe and a fluorescence method. The method is simple, novel, high in efficiency and low in cost, and applicability to practical water samples is realized.

The invention discloses porphyrin modified by diethylenetriamine pentaacetic acid gadolinium and a preparation method and application thereof. The porphyrin modified by diethylenetriamine pentaacetic acid gadolinium has the following structure (I) shown in the specification of the invention. The porphyrin modified by diethylenetriamine pentaacetic acid gadolinium has favorable water solubility and higher biomagnetic effect. Through large quantity of grope by the inventor, the orphyrin modified by diethylenetriamine pentaacetic acid gadolinium has high enhancement in clinical MRI (Magnetic Resonance Imaging) and also stronger fluorescence quantum yield, strong fluorescent effect and wide application prospect and can be applied to the fields of nonlinear photoelectric materials, magnetic resonance imaging diagnosis, fluorescent molecular probes and the like. A preparation method of a porphyrin contrast agent modified by the diethylenetriamine pentaacetic acid gadolinium is concise and easy to operate.

The invention discloses a blockage removing agent for oilfields and a preparation method thereof, which comprises a pre-fluid, a main body fluid and a post-fluid with a mass ratio of 1:4:1; wherein, the pre-fluid includes hydrochloric acid, ethylene glycol Triaminepentaacetic acid amine, dodecyl dimethyl betaine, hydroxyethylidene diphosphonic acid, polyacrylamide, corrosion inhibitor, and the balance is water; the main liquid includes paraformaldehyde, ammonium chloride, Ammonium chloroacetate, ethylene glycol butyl ether, dodecyl dimethyl betaine, aminotriacetic acid, polyacrylamide, penetrating agent, corrosion inhibitor, and the balance is water; Acetic acid, sodium hypochlorite, butyl glycol ether, penetrating agent, corrosion inhibitor, and the balance is water. The present invention adopts the combination of acid + authigenic acid + oxidizing agent +, which can thoroughly degrade inorganic substances, biological bacteria clusters, metal corrosion products and high molecular polymers one by one, and then completely remove blockages in oil and water wells, achieving significant improvement The purpose of oil production.

The invention provides a cadmium ion detection kit and its preparation method and application. The cadmium ion complete antigen is a complex of cadmium ion, a chelating agent and a carrier protein; wherein the chelating agent includes ethylenediaminetetraacetic acid, Diethylenetriaminepentaacetic acid, diethylenetriaminepentaacetic acid derivatives, 1,4,7,10-tetraazacyclododecane-N,N,N,N-tetraacetic acid or 1,4,7,10 Any one or a combination of at least two of ‑tetraazacyclododecane‑1,4,7,10‑tetraacetic acid‑N‑hydroxysuccinimide esters. In the present invention, the heavy metal cadmium ion is coupled with the carrier protein through a bifunctional chelating agent to obtain the complete antigen of the cadmium ion, and a cadmium ion monoclonal antibody with strong immunogenicity and higher titer to the cadmium ion is prepared, and the kit composed of the specificity Strong, high sensitivity, can be used to detect cadmium ions.

The invention discloses a multifunctional neutralizing acid agent for laundry dragons and a manufacturing process thereof. The neutralizing acid agent comprises the following components in mass percent: trisodium methylglycine diacetate 1-5%, diethyl ether with a purity of 40%. Triaminepentaacetic acid 2‑6%, fluorescent whitening agent 0.01‑0.5%, sulfamic acid 12‑20%, citric acid 1‑5%, oxalic acid 1‑5%, hydrofluoric acid 0.01‑0.2%, ethanol 2 ‑6%, the balance is deionized water. The multifunctional neutralizing acid agent for laundry dragon provided by the invention is simple and practical to manufacture, has good neutralizing performance, and can quickly and synchronously complete peracid neutralization, softening, antistatic and whitening treatments. The neutralizing acid agent provided by the invention not only neutralizes alkaline substances, but also effectively removes calcium, magnesium, iron ions and other dirt deposits deposited on public textiles, effectively avoiding graying and yellowing of textiles after repeated washing , so that the whiteness value can be kept > 70 degrees for a long time; after using the neutralizing acid agent, the pH value of public textiles in wet state can be 5-7, so as to avoid skin irritation caused by public textiles after washing.