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Hitachi High-Tech in Canada

Note Number: LC59

Desmosine and isodesmosine are known as unique amino acids present in elastin. In the conventional physiological fluid amino acid analysis, their retention times overlap that of ornithine (Orn.), thus making it impossible to perform quantitative analyses. In order to solve this problem, we have used an OPA pre-column labeling method to analyze desmosine and isodesmosine.