CAJ | 학술논문

利用气质联用仪可以在较短的时间、气体用量很少的情况下分析出天然气中的常规组分，并且该方法简便易行。对西二线天然气进行了组分分析，采用外标法定量，得出各组分含量：氮气：1.8524%；甲烷：93.8583%；二氧化碳：0.6617%；乙烷：2.8891%；丙烷：0.4460%；异丁烷：0.0344%；正丁烷：0.0874%；异戊烷：0.0461%；正戊烷：0.0616%；正己烷：0.0629%。实验中设计了气流速度平衡控制系统保证进样的重复性和结果的准确性，此外进行了数据的重复性验证，相对标准偏差均低于5%，最后对气质联用仪就天然气定量分析准确度方面提出了改进意见。
이용기질련용의가이재교단적시간、기체용량흔소적정황하분석출천연기중적상규조분，병차해방법간편역행。대서이선천연기진행료조분분석，채용외표법정량，득출각조분함량：담기：1.8524%；갑완：93.8583%；이양화탄：0.6617%；을완：2.8891%；병완：0.4460%；이정완：0.0344%；정정완：0.0874%；이무완：0.0461%；정무완：0.0616%；정기완：0.0629%。실험중설계료기류속도평형공제계통보증진양적중복성화결과적준학성，차외진행료수거적중복성험증，상대표준편차균저우5%，최후대기질련용의취천연기정량분석준학도방면제출료개진의견。
GC-MS has advantages of high analytical speed and simple analytical steps. The gas of the second west to east gas pipeline was analyzed by using external standard based on GC-MS, determined contents of every components are as follows:nitrogen 1.852 4%, methane 93.858 3%,carbon dioxide 0.661 7%, ethane 2.889 1%,propane 0.446 0%, isobutene 0.034 4%, butane 0.087 4%, isopentane 0.046 1%,pentane 0.061 6%,hexane 0.062 9%.In the experiment, gas velocity balance control system was used to ensure reproducible and accurate results. In addition, the relative standard deviations are less than 5%for the reproducibility of the data validation. Finally, some suggestions on GC-MS improvement are put forward.