Quantification of Mineral Oil Aromatic Hydrocarbons (MOAH) in Anhydrous Cosmetics Using ¹H NMR

Table 6

Validation lip balm.

Validation points	Target value (MOAH) (g/100 g)	Weighted sample (mg)	Actual value (MOAH) (g/100 g)	Recovery (%)
Measurement series: 1; technician 1; NMR spectrometer 2
P1	0.00	50.90	0.00	100.00
P2	0.08	49.70	0.07	88.71
P3	0.14	49.80	0.13	88.83
P4	0.22	50.60	0.20	89.64
P5	0.37	51.90	0.35	95.41
P6	0.51	49.40	0.49	94.57
P7	0.71	51.60	0.70	98.75
P8	0.90	51.00	0.86	95.90
P9	1.19	51.30	1.15	96.38
Measurement series: 2; technician 2; NMR spectrometer 2
P1	0.00	50.90	0.00	100.00
P2	0.08	51.10	0.07	88.58
P3	0.14	50.00	0.12	86.34
P4	0.22	50.50	0.20	89.02
P5	0.37	49.90	0.33	89.47
P6	0.51	50.90	0.47	92.13
P7	0.71	51.10	0.67	94.48
P8	0.90	50.80	0.79	87.47
P9	1.19	51.40	1.15	96.51
Measurement series: 3; technician 1; NMR spectrometer 1
P1	0.00	51.20	0.00	100.00
P2	0.08	50.90	0.04	50.31
P3	0.14	50.10	0.10	65.86
P4	0.22	52.30	0.18	79.93
P5	0.37	51.60	0.32	86.83
P6	0.51	51.00	0.48	93.54
P7	0.71	50.50	0.68	95.97
P8	0.90	51.90	0.91	100.62
P9	1.19	51.30	1.14	95.72