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

Table 7

Validation lipstick.

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	0.01	48.70	0.01	96.59
P2	0.05	50.50	0.05	102.21
P3	0.14	51.70	0.15	106.20
P4	0.20	50.90	0.18	94.97
P5	0.34	49.60	0.34	100.11
P6	0.51	50.00	0.48	95.22
P7	0.70	52.30	0.66	95.63
P8	0.90	50.40	0.84	93.38
P9	1.19	51.50	1.08	91.09
Measurement series: 2; technician 2; NMR spectrometer 1
P1	0.01	51.20	0.01	72.89
P2	0.05	50.30	0.02	42.31
P3	0.14	51.00	0.07	53.03
P4	0.20	50.50	0.14	69.88
P5	0.34	52.50	0.30	86.73
P6	0.51	50.20	0.43	84.59
P7	0.70	51.10	0.59	84.70
P8	0.90	51.20	0.72	80.21
P9	1.19	50.80	0.95	80.16
Measurement series: 3; technician 1; NMR spectrometer 1
P1	0.01	50.20	0.01	126.14
P2	0.05	50.20	0.04	90.86
P3	0.14	51.70	0.11	75.07
P4	0.20	51.30	0.14	74.08
P5	0.34	48.60	0.29	87.17
P6	0.51	50.70	0.48	95.50
P7	0.70	51.10	0.68	97.58
P8	0.90	52.30	0.88	97.78
P9	1.19	53.20	1.07	90.17