The TRACE TR-1701 column is a popular mid-polarity column that sits between the TR-50MS and the TR-35MS in polarity. It is characterized by low bleed and high temperature stability compared with other similar columns. The cyano and phenyl groups increase polarity of the column while offering alternative selectivity. This makes the TR-1701 column especially suited for confirmational analysis when used in conjunction with a column of a different polarity, such as the TRACE TR-5MS.