色谱柱进少量的盐溶液该注意什么？

应助达人

找到一段有重要价值的信息关于保护色谱柱的，哪位高手能指点下：
NOTE: Use a removable glass liner at the inlet to the gc column. Remove the glass liner from the gas chromatograph and clean it with water and acetone rinses at the end of each day. In order to prevent salt buildup, the glass gc liner was soaked in a saturated KOH solution and packed with KOH-coated glass wool

文中的removable glass liner at the inlet to the gc column就是普通的衬管么？