Table 1.

The Analytical precision of the method

	Ceramides, µmol/L
	C14:0		C16:0		C18:1		C18:0		C20:0		C24:0
	Mean ± SD	CV, %	Mean ± SD	CV, %	Mean ± SD	CV, %	Mean ± SD	CV, %	Mean ± SD	CV, %	Mean ± SD	CV, %
Intraassay precision
Low Conc.(n = 10)	0.26 ± 0.01	2.7	0.97 ± 0.02	1.5	0.31 ± 0.01	2.6	0.39 ± 0.01	2.5	0.40 ± 0.01	2	0.38 ± 0.01	2.6
High Conc. (n = 10)	2.61 ± 0.03	1.1	9.65 ± 0.10	1.1	3.37 ± 0.08	2.2	3.89 ± 0.05	1.4	4.04 ± 0.05	1.3	3.89 ± 0.05	1.3
Interassay precision
Low Conc.(n = 10)	0.26 ± 0.01	3.6	0.99 ± 0.03	3.3	0.33 ± 0.02	5.7	0.41 ± 0.02	4.1	0.42 ± 0.02	5.2	0.39 ± 0.02	5.1
High Conc. (n = 10)	2.69 ± 0.08	3	9.88 ± 0.20	2.1	3.63 ± 0.16	4.5	4.07 ± 0.15	3.6	4.31 ± 0.25	5.8	4.15 ± 0.23	5.5