Determination of haptoglobin in human serum by high-performance gel-permeation chromatography |
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Authors: | H Hosotsubo K Arai J -I Iwamura |
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Institution: | (1) Central Laboratory for Clinical Investigation, Osaka University Hospital, Fukushima, Osaka, Japan;(2) Research Institute of Food Science, Kinki University, Kowakae, Higashi-Osaka, Japan |
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Abstract: | Summary A high-performance gel-permeation chromatographic (GPC) method is described for the determination of serum haptoglobin (Hp),
based on the estimation of the haptoglobin-hemoglobin (Hp−Hb) complex. Hemoglobin (Hb) is added to the serum and the resulting
Hp−Hb complex is separated by GPC and detected at 415 nm. The Hp−Hb complex separated chromatographically from serum migrated
electrophoretically with the globulin fraction. It was found to be stable over a period of one week at 4°C. The total analysis
time for a serum sample is approximately 20 min. The minimum detection limit is 30mg/L. Relative standard deviation values
were below 1% (peak area). No interferences from bilirubin or from turbidity of samples were observed. The results of the
GPC analysis correlate well with those obtained by nephelometric assay (r=0.996). |
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Keywords: | Gel permeation chromatography Haptoglobin Hemoglobin Correlation with nephelometry |
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