LCGC Quick Poll: Problems with Gradient and Isocratic Methods

Question Title

* 1. What is your biggest problem with gradient LC methods?

Ghost peaks

Poor retention reproducibility

Hard to transfer from one instrument to another

Other (please specify)

Question Title

* 2. What is your biggest problem with isocratic LC methods?

Poor retention reproducibility

Poor peak shape

Extra peaks in the baseline

Poor sensitivity

Other (please specify)

Question Title

* 3. What percentage of your LC samples are run by isocratic or gradient methods?

	100% or nearly 100%	About 75%	About 50%	About 25%	<25%
Isocratic methods	Isocratic methods 100% or nearly 100%	Isocratic methods About 75%	Isocratic methods About 50%	Isocratic methods About 25%	Isocratic methods <25%
Gradient methods	Gradient methods 100% or nearly 100%	Gradient methods About 75%	Gradient methods About 50%	Gradient methods About 25%	Gradient methods <25%