| 摘要: |
| 建立了DNPH衍生化采样-溶剂解析-高效液相色谱测定木制品中醛酮化合物的方法。采样时需在2，4-二硝基苯肼吸附管前串联一只SEP-PAK脱臭氧小柱；采样体积应≤10 L，流量≤400 mL/min。该法对25种醛（酮）化合物对应的衍生物分离效果良好，在0.005~3 mg/L范围内线性良好，相关系数R2≥0.999 6，回收率为85.3%~113.5%，精密度为2.67%~4.56%。采样量为10 L时，25种醛（酮）化合物的检出限和定量限分别≤0.16和0.50μg/m3。 |
| 关键词: 醛酮化合物 溶剂解析 衍生化 高效液相色谱 木制品 |
| DOI： |
| 分类号:O657.7+2 |
| 文献标识码:B |
| 基金项目:江苏出入境检验检疫局计划项目（2010KJ26） |
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| Simultaneous Determination of 25 Aldehydes and Ketones in Wood Materials by 2，4 Dinitrophenylhydrazine （DNPH） Derivatization Sampling and Solvent Desorption Coupled with High Performance Liquid Chromatography |
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WANG Wei，LU Zhigang，ZHANG Guizhen1,2
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1. Xuanwu District Environmental Monitoring Station， Nanjing， Jiangsu 210018， China;2. Jiangsu Entryexit Inspection and Quarantine Bureau， Nanjing， Jiangsu 210001， China
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| Abstract: |
| The measurement of aldehydes and ketones in wood materials was established using 2，4 dinitrophenylhydrazine （DNPH） derivatization sampling and solvent desorption coupled with high performance liquid chromatography （HPLC）. A SEP PAK column was attached to the front of the DNPH sampling column. Sample volume and flow speed were maintained below 10 L and 400 mL/min， respectively. The method showed good separation between 25 aldehydes and ketones， with good linearity in the range of 0.005~3mg/L. The correlation coefficient R2 was above 0.999 6， and the recovery rates and precision were in the range of 85.3%~113.5% and 2.67%~4.56%， respectively. When the sampling volume was 10 L， the detection limit and quantitative limit of 25 aldehydes and ketones were less than 0.16 and 0.50 μg/m3， respectively. |
| Key words: Aldehyde and ketone Solvent desorption Derivatization HPLC Wood materials |
