What do terms exactly mean: "Ultra inert" in case of liners, columns, and "deactivated" in case of glass wool? What is the process to make the glass to ultra inert glass?
Ultra Inert refers to Ion Sources (MS) which do not bring anything to the sample under ionization. Deactivated refers to Liner tubes (GC) which have no dead points to react with the sample vaporizing into them. For further information you can refer to the Agilent Technologies web page. www.chem.agilent.com
Ultra inert does NOT refer to ion sources! It is a reference to the lack of -ol activity (both for acidic and basic compounds) in columns and liners. It will be different depending upon the deactivation processes used, the column phase, etc.
Deactivated, in terms of glass wool, typically refers to a chloromethylsilane treatment process. This, again, is treating the active -ol groups found in untreated glass wool. Depending upon the process used (low temp, gas phase, high temp, etc) the glass wool will be less reactive towards certain acidic and/or basic compounds (for example, phenols, amines, etc).
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