Influence of testing system and sample diluents on cyclosporine analysis
- VernacularTitle:不同检测系统和样品稀释液对环孢素检测结果的影响
- Author:
Zhidong GU
;
Xinming SHI
;
Qiuya LU
;
Qishi FAN
- Publication Type:Journal Article
- Keywords:
Cyclosporine;
Drug monitoring;
Sample diluents
- From:
Chinese Journal of Laboratory Medicine
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To obtain conversion formulae of cyclosporine test results between TDX and AXSYM system and evaluate the influence of different sample diluents in over-range samples on AXSYM system.Methods One hundred samples with different concentration were analyzed by TDX and AXSYM system, respectively. The results were compared. Fifty over-range samples were diluted with prepared diluents such as whole blood, phosphate buffer, self-prepared diluents and zero point calibrator and then analyzed on AXSYM system.Results There was a significant difference in the results between TDX and AXSYM system. Reasonable formulae were concluded based on different concentration ranges. Results obtained by using whole blood and phosphate buffer as diluents differed from that got by using zero point calibrator. In contrast, there was no significant difference between self-prepared diluents and zero point calibrator.Conclusion The conversion formulae are helpful to evaluate the variation of the results while the analysis system was changed. Self-prepared diluents could be used to replace zero point calibrator as sample diluents.
