CAJ | 학술논문

研究了气体中合成辣椒素(OC)的固体吸附-气相色谱检测方法,建立了气体样品经XAD-2吸附后于CH_2Cl_2溶液中解析,采用毛细管色谱柱分离,FTD检测器进行检测的技术途径.色谱柱:HP-5;载气:高纯氮气(1.2 mL/min);进样口温度:250℃;检测器温度:280℃;程序升温:初始温度180℃,保持0.5 min后以30℃/min的速率升至250℃保持5 min;对影响样品采集和检测的条件进行了选择研究,方法平均回收率为91.5%;平均相对标准偏差为3.2%(n=6);对气态OC的最低检出浓度为10 μg/m~3;在5.0～1000.0 μg/mL范围内有良好的线形关系(r=0.9996).
연구료기체중합성랄초소(OC)적고체흡부-기상색보검측방법,건립료기체양품경XAD-2흡부후우CH_2Cl_2용액중해석,채용모세관색보주분리,FTD검측기진행검측적기술도경.색보주:HP-5;재기:고순담기(1.2 mL/min);진양구온도:250℃;검측기온도:280℃;정서승온:초시온도180℃,보지0.5 min후이30℃/min적속솔승지250℃보지5 min;대영향양품채집화검측적조건진행료선택연구,방법평균회수솔위91.5%;평균상대표준편차위3.2%(n=6);대기태OC적최저검출농도위10 μg/m~3;재5.0～1000.0 μg/mL범위내유량호적선형관계(r=0.9996).
A methods for monitoring synthesis of olepresin capsaicin (OC) in gas were developed with solid adsorption-gas chromatography in this paper. The gas samples were adsorbed on a sorbent (XAD-2), and then desorbed in CH_2Cl_2 solution. The solution containing OC was separated on the capillary columnn HP-5 (5% phenyl methyl silox-ane, 30 m×320 tani.d, ×0.25 μm) with N_2 as carrier gas at a flow rate of 1.2 mL/min, H_2(35 mL/min), Air (350 mL/min), Make up (N_2 : 25 mL/min). Inlet and detector temperatures were 250 ℃ and 280 ℃, program tem-perature was from 180 ℃ to 250 ℃ at a rate of 30 ℃/min. Injection volume was 1 μL with spilt mode. OC was de-tected by a flame ionization detector (FID). The conditions that affected sampling and analysis were studied. The re-suits indicate that the monitoring method has high sensitivity and selectivity. The average recovery was 91.5%, the relative standard deviation (RSD) was 3.2%. The detection limit of OC in gas was 10 μg/m~3 (signal-to-noise ratio of 3) and the linear relationship is good in the range of 5.0～1000.0 μg/mL.