摘要
针对柠檬烯等8种萜烯试剂建立了GC-MS和GC-FID分析方法。采用GC-MS对萜烯中杂质的定性分析,以及GC-FID色谱峰面积归一法,确定了萜烯试剂纯度结果。通过评估分析方法的重复性、仪器线性、FID响应因子(或有效碳数)以及其它未识别的微量组分等因素的影响,对纯度测定结果的不确定度进行评估。实验获得了萜烯试剂的纯度结果为:柠檬烯(98.91%±0.71%),异戊二烯(99.09%±0.56%),α-蒎烯(98.91%±0.56%),β-蒎烯(98.81%±0.48%),α-松油烯(89.26%±0.99%),γ-松油烯(96.65%±0.82%),2-蒈烯(96.26%±0.76%),月桂烯(91.29%±0.84%)。
8 pure terpene reagents including limonene were analyzed by using both GC-MS and GC-FID. Here GC-MS was used to identify the impurities in terpene reagent, and GC-FID peak areas were normalized to obtain the purity data of specific terpene reagent. The uncertainty contributions from analytical repeatability, instrumental linearity, FID response factor （effective carbon number（ECN） ）, and those unknown trace components were evaluated. The measured purity were obtained as following： limonene（98.91% ± 0. 71% ）, isoprene （99. 09%± 0. 56% ）, α-pinene （98. 91%± 0. 56% ）, α-pinene（98.81% ± 0. 48% ）, ct-terpinene （ 89.26% ± 0. 99% ） , 7-terpinene （ 96. 65% ±0. 82% ） , 2-carene （ 96. 26%±0. 76% ）, myrcene（91.29% ± 0. 84% ）.
作者
马浩淼
吴海
王德发
张培壮
王振
MA Hao-miao;WU Hai;WANG De-fa;ZHANG Pei-zhuang;WANG Zhen(National Institute of Metrology,Beijing 100029,China)
出处
《计量学报》
CSCD
北大核心
2018年第5期736-740,共5页
Acta Metrologica Sinica
基金
国家自然科学基金(41275136)
国家重点研发计划(2016YFF0201101)
关键词
计量学
萜烯
面积归一法
气相色谱法
纯度分析
metrology
terpene
peak area normalization
gas chromatography
purity analysis
作者简介
马浩淼（1981-），男，甘肃天水人，中国计量科学研究院工程师，主要从事气体分析计量工作。mahm@nim．ac．cn;吴海为本文通讯作者。wuhai@nim．ac．cn
