Comparative Study on Application Optimization of Determination Methods for Dimethyl Ketoxime in Water
The boiler feedwater in actual production was determined,and research on experimental conditions was conducted by using spectrophotometry.Specifically,the working liquid usage,acidity,heating time,and the impact of colorimetric dishes on experimental results during constructing the standard working curve were optimized.The results showed that good linearity,and more accurate and reliable measurement results were obtained when constructing the working curve by taking 0.50 mL,1.00 mL,2.00 mL,3.00 mL,4.00 mL and 5.00 mL of dimethyl ketoxime working solution with 0.50 mL of ferric solution,1.00 mL of sulfuric acid solution with a concentration of 0.15 mol·L-1,heating for 5 min in a boiling water bath,and adding 10.00 mL of buffer reagent mixture,measuring absorbance at 510 nm wavelength using a 5 cm colorimetric dish.Moreover,the experimental errors were significantly reduced,and precision was markedly improved.
SpectrophotometryDimethyl ketoximeApplicationExperimental condition control
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