仪器再现性的统计分析作为高分辨率呼​​吸测量的内部质量控制

Measuring mitochondrial Ca2+ efflux in isolated mitochondria and permeabilized cells

 

 

 

Keywords:high-resolution respirometry HRR; polarographic oxygen sensor POS; air calibration; instrumental background; reproducibility; limit of detection; internal quality control IQC; standard operating procedure SOP 

关键词:高分辨率呼吸测量法 HRR; 极谱氧传感器POS; 空气校准; 乐器背景; 再现性; 检测限; 内部质量控制 IQC; 标准作业程序SOP
作者:Baglivo Eleonora, Cardoso Luiza HD, Cecatto Cristiane, Gnaiger Erich
出版期刊:《Bioenerg Commun》(2022/8/4)

 

Abstract:

Evaluation of instrumental reproducibility is a primary component of quality control to quantify the precision and limit of detection of analytical procedures. A pre-analytical instrumental standard operating procedure (SOP) is implemented in high-resolution respirometry consisting of: (1) a daily SOP-POS for air calibration of the polarographic oxygen sensor (POS) in terms of oxygen concentration cO2 [µM]. This is part of the sensor test to evaluate POS performance; (2) a monthly SOP-BG starting with the SOP-POS followed by the chamber test quantifying the instrumental O2 background. The chamber test focuses on the slope dcO2/dt [pmol∙s−1∙mL−1] to determine O2 consumption by the POS and O2 backdiffusion into the chamber as a function of cO2 in the absence of sample. Finally, zero O2 calibration completes the sensor test.

 

文章摘要:

仪器重现性评估是质量控制的主要组成部分,用于量化分析程序的精密度和检测限。 在高分辨率呼吸测量中实施分析前仪器标准操作程序 (SOP),包括:(1) 每日 SOP-POS,用于根据氧气浓度 cO2 [µM] 对极谱氧气传感器 (POS) 进行空气校准。 这是评估 POS 性能的传感器测试的一部分; (2) 每月一次的 SOP-BG,从 SOP-POS 开始,然后是量化仪器 O2 背景的腔室测试。 腔室测试侧重于斜率 dcO2/dt [pmol∙s-1∙mL-1],以确定 POS 消耗的 O2 和在没有样品的情况下作为 cO2 的函数进入腔室的 O2 消耗。 最后,零氧校准完成传感器测试。

 

 

点击链接即可查看和下载文章:https://www.bioenergetics-communications.org/index.php/bec/article/view/baglivo_2022

文章题目、关键词与摘要译文仅用于参考。 

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