摘要
采用高效液相色谱法同时测定建筑用胶中苯系物和邻苯二甲酸酯类增塑剂。样品以乙酸乙酯为萃取剂超声提取,采用C18柱为固定相,乙腈、水为流动相进行梯度洗脱,采用二极管阵列检测器,在254 nm处测定。5种苯系物和5种邻苯二甲酸酯类增塑剂的峰面积与其质量浓度呈线性关系,线性范围在1-3个数量级之间,对苯系物的检出限（3S/N）在0.003-0.006 g.L-1之间,对邻苯二甲酸酯类增塑剂的检出限（3S/N）在0.003 g.L-1之内。对水基型和溶剂型建筑用胶中各物质的回收率在98.1%-101.9%之间。5个实验室间对相同建筑用胶样品中不同目标物测定的相对标准偏差（n=6）在0.8%-4.2%之间。
HPLC was applied to the simultaneous determination of benzene homologues and phthalic esters as plastifiers in architectural adhesives.The sample was extracted with ethyl acetate,and separated by gradient elution on C18 chromatographic column,and their contents determined with DAD-detection at the wavelength of 254 nm.Linear relationship between values of peak area and mass concentration of standards of the 5 different benzene homologues and 5 kinds of phthalic esters were found between values in magnitudes of 1-3 orders,with limits of detection（3S/N） of benzene homologues in the range of 0.003-0.006 g·L-1 and limits（3S/N） of detection of phthalic esters in the range within 0.003 g·L-1.The values of recovery of target compounds in solvent type and aqueous type architectural adhesives found were ranged from 98.1% to 101.9%.The values of RSD′s（n=6） for different target compounds in the same architectural adhesive between 5 laboratories was in the range of 0.8%-4.2%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2010年第5期515-517,520,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
基金
国家质检总局课题(2006IK046)
