化学
血红蛋白
再现性
重复性
化学发光免疫分析
化学发光
鲁米诺
全血
色谱法
检出限
免疫分析
定量分析(化学)
分析化学(期刊)
生物化学
内科学
免疫学
抗体
生物
医学
作者
Huan Zhao,Xinghan Qiu,Enben Su,Li Huang,Yunfeng Zai,Yuan Liu,Hui Chen,Zunliang Wang,Zhu Chen,Jintao Wang,Lian Jin,Yan Deng,Nongyue He
标识
DOI:10.1016/j.aca.2021.339379
摘要
The concentration ratio of glycosylated hemoglobin A1c (HbA1c) to total hemoglobin (Hb) has long been used to accurately determine stagewise diabetes because this parameter represents a reliable and accurate biomarker of mean 90-day blood glucose values. In this paper, we report a time-resolved chemiluminescence assay that can detect both Hb and HbA1c. For the determination of Hb, the interaction of heme in Hb with H2O2 in NaOH solution was performed to generate a chemiluminescence peak. HbA1c was detected using a sandwich immunoassay based on an acridine ester-labeling method using the same Hb chemiluminescence trigger system. The results showed that the repeatability %CV of the proposed method for multiple detections of HbA1c and Hb ranged from 1.22 to 2.21%, with a median value of 1.73%, while the within-site reproducibility %CV ranged from 2.13 to 3.27%, with a median value of 2.81%. Compared with the conventional HPLC method (BIO-RAD D10 system), the correlation coefficient was 0.9959. In conclusion, a time-resolved multiple chemiluminescence immunoassay biosensor for HbA1c/Hb detection was established, and the method has excellent reproducibility and accuracy, thus demonstrating great potential for clinical application.
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