Overloading control of gas chromatographic systems

I.G. Zenkevich, A.A. Pavlovskii

Результат исследований: Научные публикации в периодических изданияхстатья

10 Цитирования (Scopus)

Аннотация

Increasing the interlaboratory reproducibility of gas chromatographic retention indices requires avoiding measurements distorted by overloading effects. Several criteria of evaluating the limits of the mass overloading of gas chromatographic systems are compared and reconsidered. The criteria mostly appropriate for practical purposes are based on (i) the dependences of factors of peak broadening (ratio of peak height and its width) vs. amount of analyte injected into the chromatographic column and (ii) the dependence of parameters characterizing the peak distortion (asymmetry factor) vs. the amount of analyte. Both these criteria provide mutually comparable evaluations of the overloading limits for analytes of different polarity. At the same time, the dependence of retention indices vs. amounts of analyte injected in the chromatographic column cannot be recommended for overloading control, because the parameters of the corresponding linear regressions indicate temperature dependence. The interpretation of cer
Язык оригиналаанглийский
Страницы (с-по)2848-2856
Число страниц9
ЖурналJournal of Separation Science
Том38
Номер выпуска16
DOI
СостояниеОпубликовано - 2015

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