https://www.selleckchem.com/pr....oducts/fluzoparib.ht
The use of hypoallergenic infant formulas and the need for reliable tests to determine the presence of residual antigens have increased in parallel. An LC-MS method for quantitation of casein was validated using incurred samples and a matrix-matched external standard curve. Powdered infant formula samples were extracted in a buffer of sodium deoxycholate and ammonium bicarbonate at 60°C and filtered through 7 kDa desalting columns. Samples were digested overnight with trypsin and precipitated with acid prior to analysis of marker pep
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