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. 2016 Feb 9;54(5):759–764. doi: 10.1093/chromsci/bmw004

Table III.

Results of Intra-Day and Inter-Day Precision

Sample Concentration (µg/mL) Mean area
% RSD
Intra-day Inter-day Intra-day Inter-day
EMT 80 1,133,022 1,131,519 0.914 1.101
TNDF 120 1,014,157 1,018,501 0.664 1.113
ELV 60 1,010,134 1,011,482 0.821 1.336
COB 60 102,633 104,258 1.327 1.766

EMT, emtricitabine; TNDF, tenofovir disoproxil fumarate; ELV, elvitegravir; COB, cobicistat; RSD, relative standard deviation.