广州质量监督检测研究院,广东 广州 511447
叶元坚,博士,高级工程师,研究方向:高分子材料化学检测,E-mail:109075456@qq.com
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叶元坚,郑煜,蔡锦安等.超声提取辅助顶空式固相微萃取/气相色谱-质谱法测定塑胶跑道面层中7种挥发性硫化物[J].分析测试学报,2022,41(02):271-275.
YE Yuan-jian,ZHENG Yu,CAI Jin-an,et al.Detection of 7 Volatile Sulfur Compounds in Plastic Track Surface by Ultrasonic Extraction-HS-SPME/GC-MS Technique[J].Journal of Instrumental Analysis,2022,41(02):271-275.
叶元坚,郑煜,蔡锦安等.超声提取辅助顶空式固相微萃取/气相色谱-质谱法测定塑胶跑道面层中7种挥发性硫化物[J].分析测试学报,2022,41(02):271-275. DOI: 10.19969/j.fxcsxb.21050501.
YE Yuan-jian,ZHENG Yu,CAI Jin-an,et al.Detection of 7 Volatile Sulfur Compounds in Plastic Track Surface by Ultrasonic Extraction-HS-SPME/GC-MS Technique[J].Journal of Instrumental Analysis,2022,41(02):271-275. DOI: 10.19969/j.fxcsxb.21050501.
建立了一种检测塑胶跑道面层中二甲基硫(DMS)、二硫化碳(CS,2,)、甲基乙基硫(MES)、二乙基硫(DES)、二甲基二硫(DMDS)、二乙基二硫(DEDS)、二甲基三硫(DMTS)7种挥发性硫化物(VSCs)的超声提取辅助顶空式固相微萃取/气相色谱-质谱(HS-SPME/GC-MS)分析方法。实验优化了顶空固相微萃取的萃取条件、超声提取条件及气相色谱-质谱参数。在优化条件下,DES、DMDS的线性范围为5 ~ 500 ng/g,其余5种VSCs的线性范围为10 ~ 500 ng/g,相关系数(,r,)为0.984 7 ~ 0.998 9,方法的检出限(,S/N, = 3)为0.4 ~ 1.4 ng/g,定量下限(,S/N, = 10)为1.3 ~ 4.7 ng/g。在低、中、高3个加标水平下的平均回收率为89.6% ~ 104%,相对标准偏差(RSD,,n ,= 6)为3.5% ~ 12%。该方法可实现分离、富集和进样一体化,适用于塑胶跑道面层中VSCs含量的日常检测。
A gas chromatography-mass spectrometry(GC-MS)coupled with ultrasonic extraction and headspace solid phase microextraction(HS-SPME) was established for the rapid analysis of seven volatile sulfur compounds(VSCs),including dimethyl sulfide(DMS),carbon disulfide(CS,2,),methyl ethyl sulfide(MES),diethyl sulfide(DES),dimethyl disulfide(DMDS),diethyl disulfide(DEDS),dimethyl trisulfide(DMTS) in plastic track surface.The HS-SPME extraction conditions,ultrasonic extraction conditions and GC-MS parameters were optimized.Under the optimized conditions,7 VSCs had good linearities in the range of 5-500 ng/g for DES and DMDS,and 10-500 ng/g for other five VSCs,with correlation coefficients(,r,) of 0.984 7-0.998 9.The limits of detection(LODs,,S,/,N ,= 3) were in range of 0.4-1.4 ng/g,and the limits of quantitation(LOQs,,S,/,N ,= 10) were 1.3-4.7 ng/g.The average recoveries at low,medium and high spiked levels ranged from 89.6% to 104%,with relative standard deviations(RSDs,,n ,= 6) of 3.5%-12%.The method integrates separation,enrichment and injection into one step,and is suitable for the routine detection of VSCs in the synthetic surfaces.
顶空固相微萃取(HS-SPME)气相色谱-质谱(GC-MS)塑胶跑道面层挥发性硫化物(VSCs)
headspace solid phase microextraction(HS-SPME)gas chromatography-mass spectrometry(GC-MS)plastic track surfacevolatile sulfur compounds(VSCs)
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