Abstract
High precision and accuracy of relative (normalized) and absolute peak areas (column loads) can be achieved with both the cold (temperature programmed, TP) splitless and the cold (on-column) modes of “cold” injection techniques if applied to mixtures ranging widely in volatility. With the cold (TP) split mode technique the performance of quantitative analyses is also improved but a certain discrimination by volatility and a slightly increased standard deviation for the peak area data still cannot be avoided. Negligible discrimination by volatility and highly reproducible column loads are the typical features of both old “splitless” techniques. With the cold (TP) splitless technique, no special syringes are needed and the glass insert can easily be exchanged and cleaned for the removal of non-volatiles.
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