Abstract
A simple method for the rapid analysis of pristane has been designed using a heptane extract of the aqueous sample followed by separation and detection by gas chromatography. Ascites fluid lots from three monoclonal antibodies (MAbs) and their purified preparations were analysed using the procedure. The highest detected level of pristane was 600 μg/mL in a single lot of ascites fluid with other values less than 140 μg/ml. For the purified samples, no pristane was detected down to the demonstrated limit of 4 μg/mg of MAb.
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