CAJ | 학술논문

为了解决甲醇羰基化反应尾气中微量碘的测定问题，通过实验比较了几种常用的碘测定方法，同时考虑了取样方法及乙醇吸收剂对测定方法的影响。实验结果表明，采用乙醇吸收法采样会对常用的分光光度计检测方法造成干扰，在乙醇存在下溴氧化、次氯酸氧化及砷铈氧化分光光度法都无法准确定量微量碘。另外，吸收采样方法难以完全吸收气体中的碘。采用吸附采样可以完全吸附碘甲烷，但随后的定量程序也显繁琐。GC-MS或GC-ECD方法应该作为甲醇羰基化反应尾气中微量碘测定的首选方法。
위료해결갑순탄기화반응미기중미량전적측정문제，통과실험비교료궤충상용적전측정방법，동시고필료취양방법급을순흡수제대측정방법적영향。실험결과표명，채용을순흡수법채양회대상용적분광광도계검측방법조성간우，재을순존재하추양화、차록산양화급신시양화분광광도법도무법준학정량미량전。령외，흡수채양방법난이완전흡수기체중적전。채용흡부채양가이완전흡부전갑완，단수후적정량정서야현번쇄。GC-MS혹GC-ECD방법응해작위갑순탄기화반응미기중미량전측정적수선방법。
To determine the content of CH3I in off-gas, commonly used methods for iodine measurement were tested. Experimental results show that all the methods fail due to the existence of ethanol. Moreover, ethanol may not absorb CH3I in off-gas completely, which results sampling error. Adsorption of CH 3I onto sorbents can be an alternative sampling method, but desorption and determination of CH 3I subsequently will be tedious. GC-MS and GC-ECD are recommended as best choice.