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气相色谱-串联质谱法同时测定锂离子电池电解液中13种有机磷阻燃剂的含量
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作者单位
王成云,李许,杨左军,林君峰,冀红略,李伟浩 1.深圳市检验检疫科学研究院2.深圳海关工业品检测技术中心3.香港理工大学应用生物科技和化学科技学院 
基金项目:深圳市电动平衡车公共检测和技术咨询公共技术服务平台(GGFW2017041217323002)
中文摘要:建立了一种可同时测定锂离子电池电解液中13种有机磷阻燃剂含量的气相色谱-串联质谱分析方法,以乙酸乙酯为萃取溶剂,超声萃取锂离子电池电解液中的有机磷阻燃剂,萃取液经浓缩、定容、过滤后进行气相色谱-串联质谱分析,外标法定量。结果显示,13种有机磷阻燃剂在一定浓度范围内线性良好,相关系数不低于0.999 3,方法的检出限(S/N=3)为0.3~30 μg/kg,定量下限(S/N=10)为1~100 μg/kg。在低、中、高3个加标水平下的平均回收率为80.4%~94.6%,相对标准偏差(RSD)为3.8%~10%。该方法简单快捷,灵敏度高,定量下限低,可满足锂离子电池电解液中有机磷阻燃剂含量日常检测需要。
中文关键词:有机磷阻燃剂  超声萃取  气相色谱-串联质谱  锂离子电池电解液
 
Simultaneous Determination of Thirteen Organophosphate Retardants in Lithium ion Battery Electrolyte by Gas Chromatography-Tandem Mass Spectrometry
Abstract:A gas chromatography-tandem mass spectrometric(GC-MS/MS) method was established for the simultaneous determination of the contents of thirteen organophosphate retardants in lithium ion battery electrolyte.Organophosphate retardants in lithium ion battery electrolyte were ultrasonically extracted with ethyl acetate as extraction solvent.The extract was then condensed and filtered,followed by the analysis of GC-MS/MS.The external standard method was used to calibrate the concentrations of the retardants.The limits of detection(LODs) varied from 0.3 μg/kg to 30 μg/kg at a ratio of signal to noise(S/N) of 3,and the limits of quantification(LOQs) ranged from 1 μg/kg to 100 μg/kg at a ratio of signal to noise(S/N) of 10.The spiked average recoveries ranged from 80.4% to 94.6% with relative standard deviations(RSDs) of 3.8%-10%.The proposed method was simple,rapid,accurate and sensitive,and could meet the demands for routine analysis of organophosphate retardants in lithium ion battery electrolyte.
Key Words:organophosphate retardants  ultrasonic extraction  gas chromatography-tandem mass spectrometry  lithium ion battery electrolyte
引用本文:王成云,李许,杨左军,林君峰,冀红略,李伟浩.气相色谱-串联质谱法同时测定锂离子电池电解液中13种有机磷阻燃剂的含量[J].分析测试学报,2020,39(3):337-342.
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