. Author manuscript; available in PMC: 2012 Nov 1.

Published in final edited form as: Bioanalysis. 2012 Jan;4(2):157–166. doi: 10.4155/bio.11.303

Table 2.

Stability of lumefantrine (n = 3).

Stability test conditions	Conc. (ng/ml)	% change	SD
Four freeze–thaw cycles, plasma	120	1.4	7
Four freeze–thaw cycles, plasma	170,000	1.2	1249

RT (22–28°C), 3 days, plasma	120	11.9	4
RT (22–28°C), 3 days, plasma	170,000	−1.6	404

RT (22°C), 72 h, autosampler	120	4.7	3.0
RT (22°C), 72 h, autosampler	170,000	−3.3	814

−70°C, 1 year, plasma	120	10	5
−70°C, 1 year, plasma	170,000	7.0	796
−70°C, 1.5 year stock in 0.5% FA, 50% MeCN		−0.53	0.1

FA: Formic acid; MeCN: Acetonitrile; RT: Room temperature.