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. 2017 May 12;12:3681–3695. doi: 10.2147/IJN.S134005

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© 2017 Yang et al. This work is published and licensed by Dove Medical Press Limited

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The MALDI-TOF-MS spectra of mPEG₁₀₀₀-COOH (A) and mPEG₁₀₀₀-HCPT (B).

Notes: The average molecular weight of mPEG₁₀₀₀-COOH was shown to be 1,051.3 Dalton, while the average molecular weight of mPEG₁₀₀₀-HCPT was 1,397.3 Dalton, with the subtraction of 346 Dalton.

Abbreviations: HCPT, 10-hydroxycamptothecin; MALDI-TOF-MS, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry; PEG, polyethylene glycol.