Method for the determination of bismuth 5-sulfo-8-nonyl quinol allyl ether

Method of Determination The sample is transferred to the solution by any suitable method. In a test solution containing 1-20 μg of lanthanum (I), inject 2.5 ml of 5N sulfuric acid, dilute with water to about 15 ml, stir well, inject 1 ml of 10% ascorbic acid solution, 1 ml of 5% EDTA solution, 1 ml A solution of propanol and 5 ml of 0.1% reagent in 50% propanol was diluted to 25 ml with water. Stir well and heat on a water bath at 60 ° C for 1.5 hours. After cooling, the absorbance was measured at 430 nm using a blank solution as a reference and using a 1 = 5 cm cuvette.

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