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- W2347702936 abstract "Disposable paper cup is people's lives daily.Cups day-to-day production process,urea formaldehyde and its derivatives-formaldehyde,melamine formaldehyde resin,phonemic resin,widely used as a cross linking agent.Cross linking at high temperature may be released under the conditions of formaldehyde gas,and pose a threat to human health.An Acetyl acetone spectrophotometer method was used to determine the concentrate of micro-formaldehyde in water.The maximum absorbance was at 414nm.The calibration curve was liner over the range 0.020ug/ml,the regression coefficient was 0.9988,the relative standard deviation was lower than 2.04%,the recovery was between 97.8%～103.0%.The absorbance value could keep stable in 1 hour.We used this method to detect the variation of concentration of micro-formaldehyde of disposable paper glass in use and found that the concentration of micro-formaldehyde was very simple,reproducible,precise and accurate." @default.
- W2347702936 created "2016-06-24" @default.
- W2347702936 creator A5006018670 @default.
- W2347702936 date "2010-01-01" @default.
- W2347702936 modified "2023-09-28" @default.
- W2347702936 title "Determination of Concentration of Micro-formaldehyde about Disposable Paper Glass in use by Acetylaceton Spectrophotometric Method" @default.
- W2347702936 hasPublicationYear "2010" @default.
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