CAS: 1787-61-7; Eriochrome Black T, Indicator

专利信息

专利号:US-4416805-A
优先权日:1978-12-20
标题:Synthesis of zeolites of small and uniform size having a high magnesium exchange capacity
发明人：KOSTINKO JOHN A
权利人:HUBER CORP J M
摘要:Zeolites of small and uniform size are formed having high magnesium exchange capacities. Zeolite A is disclosed having an average particle size less than 1.7 microns, a calcium carbonate exchange capacity of more than 230 mg calcium carbonate per gram zeolite and a magnesium exchange capacity of more than 140 mg magnesium carbonate per gram zeolite. This zeolite A is produced from a reaction mixture having a water to sodium oxide molar ratio of less than 35:1, and a sodium oxide to silica molar ratio of between 1:1 and 4:1, wherein the silica to alumina molar ratio is greater than 3:1 when the sodium oxide to silica molar ratio is less than 4:3 and the sodium oxide to alumina molar ratio is greater than 4:1 when the sodium oxide to silica molar ratio is greater than 4:3. Zeolite X is disclosed having an average particle size less than 2.2 microns, a calcium carbonate exchange capacity of more than 205 mg calcium carbonate per gram zeolite, and a magnesium exchange capacity of more than 130 mg magnesium carbonate per gram zeolite. This zeolite X is produced from a reaction mixture having a silicate alumina molar ratio greater than 5:1. A combination of zerolite A and zeolite X can be produced from the same reaction mixture.

专利号:US-12007376-B2
优先权日:2014-02-26
标题 :Method for determining a concentration of a synthesis component in a radiopharmaceutical sample
发明人：LEBEDEV ARTEM Y; ELIZAROV ARKADIJ M
权利人:TRACE ABILITY INC
摘要:A method for determining a concentration of a synthesis component in a radiopharmaceutical sample comprises providing an indicator, a metal or a metal complex, contacting the radiopharmaceutical sample with the indicator, metal or metal complex for a period of time sufficient to obtain an interaction, measuring an optical characteristic of the interacted components, and determining a concentration of the synthesis component in the radiopharmaceutical sample based on the measured optical characteristic.

专利号:US-9574233-B2
优先权日:2011-11-29
标题:Method for detecting the synthesis and/or amplification of a target nucleic acid sequence
发明人：TURBA MARIA ELENA; ZAMBON ELISA
权利人:GENEFAST S R L
摘要:The present invention relates to a method for the detection of nucleic acid synthesis and/or amplification, characterized in that the method includes adding at least one colorimetric metal indicator and at least one bland magnesium chelator to a reaction mixture for nucleic acid amplification. The present invention further relates to a kit for carrying out such a method and to the use thereof in the health, food and agricultural or veterinary fields.

专利号:US-2007196259-A1
优先权日:2004-03-15
标 题 :Flame synthesis of metal salt nanoparticles, in particular calcium and phosphate comprising nanoparticles

专利号:US-2024208898-A1
优先权日:2021-03-25
标 题 :Enamine n-oxides: synthesis and application to hypoxia-responsive prodrugs and imaging agents
发明人：KIM JUSTIN; KANG DAHYE; CHEUNG SHELDON T
权利人:DANA FARBER CANCER INST INC
摘要:Disclosed are compounds and pharmaceutically acceptable salts and stereoisomers thereof that are suitable for diagnosis and the treatment of diseases and disorders characterized by, associate with or which exhibit tissue hypoxia, such as, for example, solid tumors. Also disclosed are pharmaceutical compositions containing same, and methods of making and using the compounds.

专利号:US-5376151-A
优先权日:1993-04-16
标题 :Environmentally friendly method for producing lightfast black shades on natural and synthetic substrates
发明人：FREEMAN HAROLD S; REIFE ABRAHAM; SOKOLAWSKA-GAJDA JOLANTA
权利人:UNIV NORTH CAROLINA STATE
摘要:Disclosed is an original approach to solving the environmental problem associated with the use of Cr-based metallized azo dyes to deliver black shades on natural and synthetic substrates. This invention affords methods for both the synthesis of metallized dyes and the generation of black dyeings using those dyes without employing metals designated as priority pollutants at any stage in either method. The key element of the disclosure is the use of black 1:2 Fe complexes of azo dyes in lieu of currently used Cr-based complexes which are based on environmentally unfriendly priority pollutant metals without compromising the desirable high fastness properties of the latter complexes, an accomplishment heretofore assumed unachievable.