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1·The effects of operation parameters under backflushing were compared with non-backflushing;

比较了有无反冲存在下，操作参数对膜通量及其下降情况的影响；

2·Applying backflushing helps maintain the GC and the MS source by removing later eluting compounds from the column before reaching the MS, and prior to the next sample injection.

应用反吹技术可以在下一个样品进样之前，直接除去柱中的后洗脱化合物以防止其进入质谱仪，从而帮助我们保持气相色谱和离子源性能。