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2. 泰州市产品质量监督检验所
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王爱霞, 陈妍, 黄银波, 等. 内墙涂料中烷基酚聚氧乙烯醚的高效液相色谱-质谱测定[J]. 分析测试学报, 2015,34(5):564-569.
Determination of Alkylphenol Ethoxylates in Coating by High Performance Liquid Chromatography-Mass Spectrometry[J]. 2015,34(5):564-569.
建立了高效液相色谱-质谱法(HPLC-MS)测定内墙涂料中烷基酚聚氧乙烯醚(辛基酚聚氧乙烯醚和壬基酚聚氧乙烯醚)含量的方法。样品经甲醇超声提取,采用Agilent Eclipse Plus C18柱(4.6 mm×100 mm,3.5 μm),以5 mmol/L乙酸铵溶液-甲醇作为流动相进行梯度洗脱分离,柱温35 ℃,流速0.3 mL?min-1,进样量 5 μL。质谱采用选择离子(SIM)方式进行检测,电喷雾离子源(ESI),正离子模式,基质匹配标准溶液定量,以A和B两种内墙涂料为代表进行加标回收实验。结果表明,辛基酚聚氧乙烯醚(OPEO)和壬基酚聚氧乙烯醚(NPEO)在0.1~5.0 mg/L浓度范围内线性关系良好(r>0.99),回收率为83.8%~114.5%,相对标准偏差为1.3%~9.8%,定量下限为4.0~5.5 mg/kg。该方法操作简便、耗时短、有机试剂用量少、灵敏度高、稳定性好,应用于日常检测可大大降低检测成本,缩短检测周期,具有实际应用价值。
A rapid method for the simultaneous determination of polyoxyethylene octylphenol ether(OPEO) and polyoxyethylene nonylphenyl ether(NPEO) was developed by using high performance liquid chromatography-mass spectrometry(HPLC-MS).The samples were ultrasonically extracted with methanol.Chromatographic analysis was carried out on an Agilent Eclipse Plus C18(4.6 mm×100 mm,3.5 μm) column with 5 mmol/L ammonium acetate solution-methanol as mobile phase in gradient program,and the quantitation was performed by the matrix-matched external standard method.The standard addition recovery experiments were conducted on two different kinds of wall coating(A and B).The calibration curves showed good linearities in the concontration range of 0.1-5.0 mg/L with correlation coefficients greater than 0.99.The recoveries of alkylphenol ethoxylates at three spiked levels ranged from 83.8% to 114.5%,with relative standard deviations(RSDs,n=6) of 1.3%-9.8%.The quantitation limits were between 4.0 mg/kg and 5.5 mg/kg.The method is simple,time-saving and environmental friendly with high sensitivity and good reproducibility,and has a practical application value due to its low-cost and short-circle.
高效液相色谱-质谱联用仪内墙涂料烷基酚聚氧乙烯醚
high performance liquid chromatography-mass spectrometry(HPLC-MS)coatingalkylphenol ethoxylates
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