Analysis of medical grade O2 for presence of SO2, N2O and NO2 is required. Impurities concentration in O2 is expected to be lower than 1 PPM. Do we have a method information where I might be able to analyze it using GCMS or may GCM PDHID ?
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Analysis of medical grade O2 for presence of SO2, N2O and NO2 is required. Impurities concentration in O2 is expected to be lower than 1 PPM. Do we have a method information where I might be able to analyze it using GCMS or may GCM PDHID ?
It is difficult to quantitate NO2 by GC because of the instability of NO, NO2. Please refer to the below article.
Can I analyze NO, N2O and NO2 via GC? (restek.com)
We can analyze the low level (below 1ppm) SO2 and N2O by GC-PDHID or GC-MS with PLOT column. (PLOT Q or U?, it have to be considered.)
As alternaete method, the selective detector (ECD and SCD) is also useful and detect the lower than 1ppm.
It is difficult to quantitate NO2 by GC because of the instability of NO, NO2. Please refer to the below article.
Can I analyze NO, N2O and NO2 via GC? (restek.com)
We can analyze the low level (below 1ppm) SO2 and N2O by GC-PDHID or GC-MS with PLOT column. (PLOT Q or U?, it have to be considered.)
As alternaete method, the selective detector (ECD and SCD) is also useful and detect the lower than 1ppm.
Thank you very much.