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| Simultaneous Determination of Four Kinds of Linear Alkyl Benzene Sulfonates by Solid Phase Extraction/High Performance Liquid Chromatography |
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| DOI：10.3969/j.issn.1004-4957.年份.月份 |
| KeyWord:high performance liquid chromatography solid phase extraction alkyl benzene sulfonate |
| Author | Institution |
| ZHOU Wei1，2，XIE Yingshuang2，WANG Bo1，JIA Songtao3，NIU Hongliang3 |
1.甘肃出入境检验检疫局中心实验室;2.西北师范大学地理与环境科学学院;3.甘肃农业大学食品科学与工程学院 |
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| Abstract: |
| A solid phase extraction coupled with high performance liquid chromatographic（SPE/HPLC） method was established for the determination of 4 kinds of sodium n alkyl benzene sulfonates in water.The samples were refrigerated and centrifuged，then purified and enriched with MAX complex anion exchange column.Four sodium n alkyl benzene sulfonates were successfully separated by HPLC using acetonitrile-100 mmol/L ammonium acetate（73∶27，by volume） as mobile phase with a flow rate of 1 mL/min，column temperature of 30 ℃，detection wavelength of 225 nm and injection volume of 10 μL.Under the optimal conditions，the calibration curves were linear in the range of 10-50 mg/L for sodium undecylbenzene sulfonte and sodium N tridecylbenzene sulfonate with detection limits of 10 mg/L，and 5-25 mg/L for sodium dodecylbenzene sulphonate and sodium tetradecylbenzene sulfonate with detection limits of 5 mg/L.The spiked recoveries were in the range of 86%-98% with relative standard deviations（RSDs） of 29%-74%. |
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