Analytics · subcategory
HPLC & UHPLC
Reversed-phase separations, gradients, columns, integration, and reading a chromatogram properly.
35 topics · page 2 of 2
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Area percent versus weight percent: the confusion that causes most arguments — what changed since
Area percent versus weight percent: the confusion that causes most arguments — what changed since Writing it up because I had to work it out twice and would rather nobody else did. Posting the method first,…
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+30 | 34 | 40k | 13mo |
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Carryover and the ghost peak from last week's standard
On the subject in the title: Carryover and the ghost peak from last week's standard Working notes rather than a conclusion. Posting the method first, because I know what the first three replies will otherwise…
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+80 | 92 | 16k | 16mo |
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Coming back to: Column chemistry choices for a 40-residue peptide
On the subject in the title: Column chemistry choices for a 40-residue peptide Working notes rather than a conclusion. Posting the method first, because I know what the first three replies will otherwise be.…
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2 | 43k | 16mo | |
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Why I ask for the gradient before I discuss the number
The question in the title: Why I ask for the gradient before I discuss the number I will give what I have already checked below so nobody repeats it. I would like to understand what this number means before I…
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+35 | 39 | 4.9k | 20mo |
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Gradient steepness and apparent purity: a worked comparison
On the subject in the title: Gradient steepness and apparent purity: a worked comparison Working notes rather than a conclusion. A documentation question rather than an analytical one. I have a certificate in…
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2 | 51k | 22mo |