原文由 netsking(netsking) 发表:
有谁知道液质中133, 183, 239都是什么杂质? LC从头到尾都有, 会不会是PEG的峰?
133.10705 | [A3B2+H]+ | [MeOH]n[H2O]m | Methanol/Water | ESI solvents |
183.14383 | [A4B3+H]+ | [MeOH]n[H2O]m | Methanol/Water | ESI solvents |
239.14892 | [A5B+H]+ | [C2H4O]nH2O | PEG | Polyethylene glycol, ubiquitous polyether |
239.22485 | [(M.H35Cl)2-Cl]+ | C6H15N | TEA.HCl | Triethylamine-hydrochloride, buffer |