摘要
研究了用超声辅助柱前衍生-高效液相色谱法(UA-HPLC)直接测定纺织品中甲醛含量的可行性。以2,4-二硝基苯肼乙腈溶液-乙酸铵缓冲液为反应液,样品于40℃下衍生反应30min,快速冷却后直接进行HPLC分析。在印花针织汗布、粘合衬布料两种基质中分别添加5、20、50、100mg/kg四个浓度水平的甲醛,其回收率在83%～108%,相对标准偏差(n=6)<5%;此方法的定量限(以信噪比S/N>10计)为3mg/kg。该法具有快速、简便,重现性好特点,适用于纺织品中甲醛含量的测定。
The feasibility of ultrasound assisted pre-column derivatization-high performance liquid chromatography （UA-HPLC） used to directly determine the formaldehyde content in textile was studied. The formaldehyde content of the solution was determined by HPLC with 2,4-dinitrophenylhydrazine in acetonitrile-ammonium acetate buffer solution as reaction solution for 30 min at 40 ℃. The test results showed that the recoveries was 83%-108% at the formaldehyde spiked levels of 5, 20, 50, 100 mg/kg in printed knitted sample and interlining fabric sample, and the relative standard deviations （ n = 6） were less than 5 %. The limit of quantification of the formaldehyde in textile was 3 mg/kg. The methods had the advantages of fast, simple and good accuracy and met the requirements of formaldehyde determination in textile.
出处
《纺织科技进展》
CAS
2013年第3期54-56,共3页
Progress in Textile Science & Technology
关键词
高效液相色谱法
柱前衍生
超声辅助
甲醛测定
纺织品
high performance liquid chromatography（HPLC） pre-colurnn derivatizationl ultrasound assisted~ formaldehyde de-termination~ textile
