Zhou MX, Guan CY, Chen G, Xie XY, Wu SH. Determination of theophylline concentration in serum by chemiluminescent immunoassay.
J Zhejiang Univ Sci B 2005;
6:1148-52. [PMID:
16358370 PMCID:
PMC1390635 DOI:
10.1631/jzus.2005.b1148]
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Abstract
OBJECTIVE
This study aimed to establish chemiluminescent immunoassay (CLIA) for quantitative determination of theophylline levels in human serum.
METHODS
To measure the concentration of theophylline (n=122) and evaluate the assay.
RESULTS
The linear range of the CLIA method was 0.51-40 mg/L (Y=1.02X+0.44, r=0.995). The intra and inter CV (coefficient variance) of CLIA were 3.20% and 3.57%, respectively. The average recovery rate was 102.3%. This method was free from interference by brilirubin (<200 micromol/L), hemoglobin (<10 g/L), and triglycerides (<15 mmol/L).
CONCLUSION
This method is simple, convenient and precise for clinical pharmacokinetics study of theophylline.
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