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In Soo Shin 1 Article
Improved HPLC Method Using 2,3-naphthalenedicarboxaldehyde as Fluorescent Labeling Agent for Quantification of Histamine in Human Immunoglobulin Preparations
Jung-Hwan Kim, In Soo Shin, Yoo Kyoung Lee, Ho Jung Oh, Sang Ja Ban
Osong Public Health Res Perspect. 2011;2(2):127-134.   Published online June 30, 2011
DOI: https://doi.org/10.1016/j.phrp.2011.07.003
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AbstractAbstract PDF
Objectives
To develop and optimize quantitative HPLC method using 2,3-naphthalenedicarboxaldehyde (NDA) after simple and efficient solid phase extraction to determine the histamine in a biopharmaceutical (Histobulin™).
Methods
The HPLC method was established using NDA-induced Histobulin and compared with the recently reported HPLC method using o-phthaldehyde (OPA). The validated NDA-applied HPLC method was adjusted to 15 lots of Histobulin and compared by the current lot-release-test method using fluorimetry in recovery of histamine and reproducibility.
Results
Analyses of six HPLC chromatograms using NDA and OPA each were compared. NDA produced a more stable chromatogram baseline than OPA, and showed better stability. The HPLC analysis was validated in accuracy (91–103%), precision (interday/intraday assay CV ≤2.30%), and linearity of dose–response curve (R2 ≥ 0.9919). The detection limit was 0.0076 μg/mL and the quantitative limit was 0.0229 μg/mL. The amount of histamine per 12 mg of immunoglobulin was determined to be 0.17 ± 0.016 μg by the HPLC and 0.025 ± 0.013 μg by the current lot-release-test method using fluorimetry.
Conclusion
NDA derivatization showed better stability compared with the OPA method. Therefore the newly established NDA-derivatizated HPLC method may be more suitable than the fluorimetric method in lot-release-tests of biopharmaceuticals.

PHRP : Osong Public Health and Research Perspectives