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HPLC-ELSD法测定低聚甘油的组成 被引量:5

Determination of the Composition of Oligoglycerols by High Performance Liquid Chromatography with Evaporative Light Scattering Detector
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摘要 建立了高效液相色谱-蒸发光散射检测器(HPLC-ELSD)测定低聚甘油组成的方法。以Econosphere Amino(250×4.6 mm,5μm)为色谱柱,乙腈-水(85∶15,V/V)为流动相,流速为1.0 mL/min,柱温为28℃,进样量为30μL,ELSD漂移管温度为32℃,载气流速为1.5 L/min。结果表明,在优化条件下,甘油、二聚甘油和三聚甘油浓度分别在100~300μg/mL、100~400μg/mL和200~600μg/mL范围内呈良好线性,相关系数分别为0.9979、0.9921和0.9969,定量下限分别为1.5、1.0和2.0μg,回收率为97%~103%,RSD<3.0%(n=6)。 An analytical method was established for the determination of the composition of oligoglycerols by using HPLC with ELSD.The optimal conditions were as follows: column was Econosphere Amino(250×4.6 mm,5 μm),mobile phase: mixture of acetonitrile and water(85:15),flow rate: 1.0 mL/min,column temperature: 28 ℃,injection volume: 30 μL,drift tube temperature: 32 ℃,flow rate of carrier gas: 1.5 L/min.Under the optimal conditions,the calibration curve was linear over the content of glycerol,diglycerol and triglycerol in the range of 100~300 μg/mL,100~400 μg/mL and 200~600 μg/mL with a correlation coefficient of 0.9979,0.9921 and 0.9969,the limit of quantification(S/N≥10) were 1.5,1.0 and 2.0 μg.The spiked recoveries were in the range of 97 %~103 % with relative standard deviations(RSDs)3.0 %(n=6).
出处 《广东化工》 CAS 2012年第8期148-150,共3页 Guangdong Chemical Industry
基金 科技部科研院所技术开发研究专项资金项目(2011EG111248) 广东省绿色精细化学产品工程技术研究中心研究基金资助课题
关键词 高效液相色谱 蒸发光散射检测器 甘油 二聚甘油 三聚甘油 HPLC ELSD glycerol diglycerol triglycerol
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参考文献12

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共引文献21

同被引文献41

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