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MB Sample ID: SA205229
Local Sample ID: | 5uM_run1 |
Subject ID: | SU002221 |
Subject Type: | Synthetic sample |
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Sample Preparation:
Sampleprep ID: | SP002227 |
Sampleprep Summary: | To improve CE peak shape and support electrophoretic focusing, a sample diluent consisting of 133 mM ammonium acetate, and 0.1% formic acid was prepared.13 This sample diluent was spiked with 1 µM 13C phenylalanine, 3 µM 13C6 arginine and 0.8 µM 13C methionine D3 as internal standards. Calibration mixtures were prepared from serial dilution of stock standard solutions using the spiked sample diluent in a 1:4 ratio. Each calibration standard was analyzed twice to yield calibration curves, calculate figures of merit, and perform metabolite quantification. |