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. 2021 Nov 5;29(10-11):608–615. doi: 10.1038/s41434-021-00300-7

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© The Author(s) 2021

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Fig. 3 — Representative calibration curves and peptide extracted ion chromatograms for (a) LLQV and (b) LEMP peptides. LLOQ lower limit of quantification, LLQV LLQVAVEDR, LEMP LEMPSSLMLEVPTHR, QCH high quality control, QCL low quality control, RT retention time, SIL stable isotope labelled (peptide), ULOQ upper limit of quantification.