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Citation: ZHAO Jing-Chan, GUO Zhi-An, ZHANG Xiao-Hui, LIANG Xiao-Yun. Determination of Formaldehyde in Architectural Material by In-column Derivatization Reaction High Performance Liquid Chromatography[J]. Chinese Journal of Applied Chemistry, ;2007, 24(1): 76-79. shu

Determination of Formaldehyde in Architectural Material by In-column Derivatization Reaction High Performance Liquid Chromatography

1.
Department of Chemistry, Northwest University, Xi'an 710069

Corresponding author: GUO Zhi-An,
Received Date: 11 January 2006
Available Online: 28 June 2006
Fund Project: 陕西省教委基金项目(03JK075) (03JK075)陕西省自然科学基金(2005B018) (2005B018)

An in-column derivatization high performance liquid chromatographic method for the determination of formaldehyde in inner wall paints and adhesives was developed.The reaction mechanism of formaldehyde and unsymmetrical dimethyl hydrazine (UDMH), and the effect of pH on nucleophilic addition were discussed.The optimal range was between 2 and 6, and chromatographic conditions were:the column:Zorbax ODS(150 mm×4.6 mm i.d.,5μm), the mobile phase:mixture of methanol-20 mmol/L acetate buffer(pH=5.0) containing 12 mmol/L UDMH (15:85, volume ratio), the flow rate: 0.8 mL/min, the column temperature; 40℃, the detection wavelength:238 nm.The regression equation is A=8 904X-49.27, and the correlation coefficient is 0.999 9.The linear range and detectable limit were 30~300 mg/L and 5 ng, respectively.The recovery was 95.90%~102.50% and RSD was 1.02%~1.51%.The method has proven to be fast, simple, sensitive, accurate and reproducible with respect to other chromatographic methods that have been reported.It can be used for the routine analysis of formaldehyde in inner wall paints and adhesives.
- in-column derivatization high performance liquid chromatography,
- inner wall paint and adhesive,
- formaldehyde,
- determination of content
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