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- W2364144752 abstract "Formaldehyde was treated with 2,4-dinitrophenylhydrazine in acidic buffer solution to obtain 2,4-dinitrophenylhydrazone,thus a method was established to determinate the content of formaldehyde in leathers using ultra performance liquid chromatography(UPLC) combined with pre-column derivation technique.The derivation conditions,the extraction conditions of the derivatives and the chromatographic conditions were all optimized.This method had a quite good linear relationship with a correlation coefficient of 0.9999.The linear range varied from 0.05 to 83.20 mg/L.The average recoveries changed from 95.64 % to 99.95 %,while the detection limit was 0.01 mg/L at the condition of S/N(signal/noise) =3.The relative standard deviation(RSD) of precision experiment was all less than 3 %.This method had rather high accuracy and precision and could satisfy completely the demand of formaldehyde measurement in leathers.Some real samples were analyzed using this method.At the same time,some samples were analyzed by colorimetric method for comparison,and the results showed that there existed no significant difference between these two methods." @default.
- W2364144752 created "2016-06-24" @default.
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- W2364144752 date "2011-01-01" @default.
- W2364144752 modified "2023-09-28" @default.
- W2364144752 title "Determination of Formaldehyde in Leathers by Pre-column Derivation/Ultra Performance Liquid Chromatography Method" @default.
- W2364144752 hasPublicationYear "2011" @default.
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