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c/hplc·submitted 1 year ago by u/honest_syringe_pls

someone explain LC-MS to me like I have not read a paper in years

Correctionbranch of 7 comments

someone explain LC-MS to me like I have not read a paper in years. Searched first, found three threads that contradict each other, hence the post. Resolution between two peaks depends on retention, selectivity and efficiency. A shallower gradient buys retention and usually resolution, at the cost of peak width and…

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7 comments, started 1 year ago
u/baseline_drifteranalytical8 points·1 year ago

What did system suitability look like on that sequence?

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u/honest_syringe_plsOP6 points·1 year ago

Same method at both labs, or two different gradients?

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u/quiet_reader_992 points·1 year ago

Chased a ghost peak for three weeks. It was the plumbing. It is always the plumbing.

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u/lina_novak1 point·1 year ago

Do you have the mass, or only the UV trace?

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u/step_count_stan1 point·1 year ago

Is that baseline drawn by the software or by hand?

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u/week_four_wall1 point·1 year ago

214nm sees the peptide bond, 280nm sees the aromatics

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u/ignacio_vanhecke3 points·1 year ago

Same method at both labs, or two different gradients?

This is the whole methodological point of the board in one line.

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