Applicability of a novel carbon sorbent for the preconcentration of volatile chlorinated hydrocarbons
Applicability of a novel carbon sorbent for the preconcentration of volatile chlorinated hydrocarbons
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新型碳吸附剂对挥发性氯化烃预浓缩的适用性
DOI：
10.1016/0003-2670(95)00089-i
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发表时间：
1995
影响因子：
6.2
通讯作者：
S. Škrabáková
中科院分区：
文献类型：
--
作者：
E. Matisová;S. Škrabáková
以蔗糖为原料，在硅胶存在下制备了多孔炭吸附剂，并对空气中甲烷、乙烷、乙烯和丙烷的氯化衍生物进行了富集试验。被捕获的组分被解吸的液体（二硫化碳和正戊烷），并通过高分辨率毛细管气相色谱柱上，不分流注射和火焰离子化（FID）和电子捕获（ECD）检测器进行测量。在10 pg-20 ng μl− 1（ECD）和1-100 ng μl− 1（FID）浓度范围内研究了所用检测器的线性范围以及绝对量的测定限（对于所研究的组分和FID，103 - 454 pg;对于ECD，0.05-127.2 pg）和浓度（对于FID，3.4-15.1 μg m−3;对于ECD，1.5-4240.0 ng m−3）。
Porous carbon sorbent prepared by pyrolysis of saccharose in the presence of silica gel was tested for the preconcentration of chlorinated derivatives of methane, ethane, ethylene and propane in air, particularly in emissions. The trapped components were desorbed by a liquid (carbon disulphide and n-pentane) and measured by high resolution capillary gas chromatography with on-column, splitless injection and flame ionization (FID) and electron capture (ECD) detection. The linearity range of the used detector was studied in the concentration range 10 pg-20 ng μl−1for ECD and 1–100 ng μl−1for FID as well as the limits of determination in absolute amounts (for studied components and FID from 103 to 454 pg; for ECD 0.05–127.2 pg) and in concentrations (for FID 3.4–15.1 μg m−3; for ECD 1.5–4240.0 ng m−3).