MOVER approximated CV: A tool for quantifying precision in ratiometric droplet digital PCR assays.
MOVER approximated CV: A tool for quantifying precision in ratiometric droplet digital PCR assays.
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DOI：
10.1016/j.jpba.2022.114664
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发表时间：
2022-04-01
影响因子：
3.4
通讯作者：
Walter ND
中科院分区：
文献类型：
--
作者：
Dide-Agossou C;Rossmassler K;Reid J;Purohit J;Savic RM;Nahid P;Phillips PPJ;Moore CM;Walter ND
Droplet digital PCR is a particularly valuable tool for ratiometric assays because it provides simultaneous absolute quantification of two target sequences in a single assay. This manuscript addresses a challenge in establishing a new ratiometric droplet digital PCR assay for use in sputum, the rRNA synthesis ratio. In principle, the methods established to evaluate precision and determine the limit of quantification for a single measurand cannot be applied to a ratiometric assay. The precision of a ratio depends on precision in both the numerator and denominator. Here, we evaluated the MOVER approximated coefficient of variation as indicator of assay precision that does not require technical replicates. We estimated the MOVER approximated coefficient of variation in dilution series and routine assays and evaluated its agreement with the traditional coefficient of variation. We found that the MOVER approximated coefficient of variation was able to recapitulate the traditional coefficient of variation without the requirement for replicate assays. We also demonstrated that the MOVER approximated coefficient of variation threshold can be used to define the limit of quantification of the rRNA synthesis Ratio. In conclusion, the MOVER approximated coefficient of variation may be useful not only for the rRNA synthesis ratio but for other assays that measure ratios via droplet digital PCR.
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