O_tolidine method
WebDec 1, 2008 · An automated method has been developed in which a new o-toluidine reagent is used for the microanalysis of glucose. The reagent is 1.3 times as sensitive as the o … WebA test method is proposed for the determination of hydrogen peroxide based on the oxidation of 4-chloro-1 -naphthol oro-tolidine catalyzed with horseradish peroxidase on cellulose or aldehydecellulose papers.The concentration of H 2 O 2 is determined by the length of the colored zone on a test strip (3 x 80 mm) sealed into adhesive polymer film …
O_tolidine method
Did you know?
Webpublished in The Journal, 17: 121, found that o-tolidine is soluble in dilute HC1 but not in concentrated HC1. They state: "This is undoubtedly due to the formation of o-tolidine … The main excretion-pathway is revealed to be through urine where up to one-third of the administered compound was recovered unchanged. o-toluidine and metabolites are known to bind to hemoglobin. The o-toluidine metabolite o-nitrosotoluene, is proven to cause bladder cancer in rats and is thought to bind to hemoglobin in humans. o-Toluidine exposure has been researched in a number of different degrees in animals.
WebMaterials and methods: Twenty-nine kinds of detergents were added to a Hb solution and measured Hb concentration by a quantitative chemical occult blood test (modified colorimetric o tolidine method) and the results were compared with those by the immunological test.
Webmethod for o-dianisidine, MOCA and o-tolidine. Note: As a consequence of later evaluation tests done for toluidine, this method has been updated. The sampling device now … WebWhat is o-Toluidine method? An o-Toluidine Method for Body-Fluid Glucose Determination o-Toluidine, 6% (v/v) in glacial acetic acid, is used to determine glucose in biologic material after deproteinization with 3% (w/v) trichloracetic acid. ... The development of the procedure is discussed, as is the specificity of the method for glucose.
WebJun 1, 1972 · In this method the ethyl acetate extract of the basic fraction (pH 9-10) is treated with acetic anhydride whereby the primary and secondary amines are acetylated and then the tertiary amines are extracted with HCI. The authors claim that after such separation bufotenin is the only constituent which is positive to diazotized o-tolidine.
WebJan 1, 1970 · Various concentrations of o-toluidine in the reagent produced differing sensitivities, up to 8% ( v / v ) ; a 6% (v/v) o-toluidine concentration seemed best to meet requirements and was recommended; the final color was most intense in 12-14 min. at 100°C; heating periods greater than 16 min. caused lower absorbances; an arbitrary … ip http secure-server 有効WebA single-chain antibody, encoding gene technology, applied in the application, genetic engineering, plant genetic improvement and other directions, can solve the problems of complex production process, long time consumption, difficult to operate, etc., to achieve the effect of simple operation, high sensitivity and easy production ip https acl 2000Webtors. Their method of investigation consisted of adding a number of different concentrations of nitrite to water containing a fixed concen-tration of free chlorine, in nearly all cases the nitrite being in excess, or more than sufficient to reduce the chlorine. O-tolidine reagent was then added and the presence or absence of typical chlorine- ip http shutdownThe proteins are first precipitated by tricholoroacetic acid. The glucose present in a protein free filtrate react with O-toluidine (primary aromatic amine) in a hot acidic medium to form a stable green colored complex, namely N-glycosamine. The presence of thiourea stabilizes the o-toluidine reaction. The … See more oral-b electric toothbrush rebateWebWe can measure ‘total chlorine ’ using OT test 5 minutes reading. ‘Combined chlorine ’ = total chlorine - free chlorine. Orthotolidine (OT) test. Enables Total, free and combined chlorine in water to be determined with speed and accuracy. The reagent is ‘analytical grade Orthotolidine’, dissolved in 10% solution of HCl. ip http iso9001WebFIG. 2.-Effect ofvarying the o-tolidine: H.,O, ratio. Ratio plotted against optical density ofcolourobtained with a I in 10 dilution of blood. Figures on the horizontal axis denote … ip http source-interfaceWebJul 19, 2024 · The invention claimed is: 1. A method for producing a polyimide resin film, consisting of: forming a coated film by coating a polyimide resin composition containing a polyimide resin, an antioxidant, and a solvent on a substrate; heating the coated film at a heating temperature of 50° C. to 110° C. for a heating period of 30 to 90 minutes to obtain … ip http upload overwrite