Topic
Degradants
Page 7 of 13 — Deamidation at plus one dalton, oxidation at plus sixteen, truncation sequences, and what a warm transit actually does.
Messages — page 7 of 13
peak_splitplus 0.98 is deamidation#hplc-massspec · 2026-01-03vacuum_vicplus 0.98 is deamidation#hplc-massspec · 2026-01-04vacuum_vica warm transit can put a visible degradant peak on a chromatogram. that is what 8 days at ambient does#hplc-massspec · 2026-01-04rotate_the_siteplus 16 is oxidation#hplc-massspec · 2026-01-04void_volumea warm transit can put a visible degradant peak on a chromatogram. that is what 16 days at ambient does#hplc-massspec · 2026-01-06void_volumeplus 0.98 is deamidation#hplc-massspec · 2026-01-06step_one_siandeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-06marrow.modoxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-01-07HPLC_Hankplus 16 is oxidation#hplc-massspec · 2026-01-07tail_factortruncations show as a mass deficit matching one or more residues. you need the sequence to say which#hplc-massspec · 2026-01-09tail_factorplus 0.98 is deamidation#hplc-massspec · 2026-01-09panel_before_afterplus 16 is oxidation#hplc-massspec · 2026-01-09back_from_awaydeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-09sharps_bin_sidfollow up truncations show as a mass deficit matching one or more residues. you need the sequence to say which#hplc-massspec · 2026-01-11sharps_bin_sidplus 16 is oxidation#hplc-massspec · 2026-01-11ferrous_ashplus 0.98 is deamidation#hplc-massspec · 2026-01-11ferrous_ashhow would a truncation sequence show up#hplc-massspec · 2026-01-11freeze_thawoxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-01-11LC_MS_Lenahow would a truncation sequence show up#hplc-massspec · 2026-01-12LC_MS_Lenaa warm transit can put a visible degradant peak on a chromatogram. that is what 5 days at ambient does#hplc-massspec · 2026-01-12chaser_chrisplus 16 is oxidation#hplc-massspec · 2026-01-14sharps_bin_siddeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-14never_for_saleplus sixteen, is that always oxidation#hplc-massspec · 2026-01-15cross_border_camplus 16 is oxidation#hplc-massspec · 2026-01-15alt_ast_alia warm transit can put a visible degradant peak on a chromatogram. that is what 15 days at ambient does#hplc-massspec · 2026-01-15alt_ast_alideamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-15peak_splithow would a truncation sequence show up#hplc-massspec · 2026-01-18no_escrow_natedeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-18endotoxin_eda warm transit can put a visible degradant peak on a chromatogram. that is what 15 days at ambient does#hplc-massspec · 2026-01-23hk_hplcoxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-01-23revoked_roplus 0.98 is deamidation#hplc-massspec · 2026-01-23warsaw_vialplus sixteen, is that always oxidation#hplc-massspec · 2026-01-23never_for_saledeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-23fern_freezescoming back to this how would a truncation sequence show up#hplc-massspec · 2026-01-23assay_not_puritytruncations show as a mass deficit matching one or more residues. you need the sequence to say which, still working it out#hplc-massspec · 2026-01-23tesa_tessdeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-24tesa_tessplus sixteen, is that always oxidation#hplc-massspec · 2026-01-24still_here_2024oxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-01-24ms_ms_miraplus 16 is oxidation#hplc-massspec · 2026-01-25vienna_vialdeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-25acetate_ashtruncations show as a mass deficit matching one or more residues. you need the sequence to say which#hplc-massspec · 2026-01-25acetate_ashplus 0.98 is deamidation#hplc-massspec · 2026-01-25motivation_gonea warm transit can put a visible degradant peak on a chromatogram. that is what 5 days at ambient does, we shall see#hplc-massspec · 2026-01-29lyophile_livplus 0.98 is deamidation#hplc-massspec · 2026-01-29slow.taperplus 16 is oxidation#hplc-massspec · 2026-01-30slow.taperplus sixteen, is that always oxidation#hplc-massspec · 2026-01-30group_buy_gwentruncations show as a mass deficit matching one or more residues. you need the sequence to say which#hplc-massspec · 2026-01-30group_buy_gwenhow would a truncation sequence show up#hplc-massspec · 2026-01-30assay_not_purityhow would a truncation sequence show up#hplc-massspec · 2026-01-31deadspacetruncations show as a mass deficit matching one or more residues. you need the sequence to say which#hplc-massspec · 2026-01-31ten_of_tendeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-01-31amylin_amyquick one oxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-01-31amylin_amyplus sixteen, is that always oxidation co-elution is the failure mode that a beautiful single peak is most likely to be hiding#hplc-massspec · 2026-01-31ten_of_tena warm transit can put a visible degradant peak on a chromatogram. that is what 22 days at ambient does#hplc-massspec · 2026-01-31ten_of_tenplus 0.98 is deamidation#hplc-massspec · 2026-01-31tail_factordeamidation is about plus 0.98 Da. it is not a rounding error, it is a degradant#hplc-massspec · 2026-02-01tail_factoroxidation is about plus 15.99 Da and is usually methionine or tryptophan#hplc-massspec · 2026-02-01taper_tessplus 0.98 is deamidation#hplc-massspec · 2026-02-01ms_ms_miraa warm transit can put a visible degradant peak on a chromatogram. that is what 6 days at ambient does#hplc-massspec · 2026-02-01fern_freezeshow would a truncation sequence show up#hplc-massspec · 2026-02-01