Table 6.

Recovery values and difference values of Zn-based commercial sunscreens tested using the correction factors from Matrix A working standards.

Sample	Label claim Zn (wt%)	[Zn]XRF (wt%)	%RV1	[Zn]ICP-MS (wt%)	%RV2	%DV
SUN01XZ	6.43	7.96 ± 0.01	124.35	7.13 ± 0.02	111.25	11.12
SUN02XZ	4.82	6.04 ± 0.01	125.75	4.70 ± 0.01	97.92	24.92
SUN03XZ	6.43	8.71 ± 0.01	136.08	7.32 ± 0.62	114.38	17.35
SUN05TZ	3.21	3.50 ± 0.00	109.33	3.11 ± 0.03	96.89	12.16
SUN06XZ	16.06	17.9 ± 0.01	110.92	17.14 ± 0.15	106.21	4.10
SUN07XZ	16.06	18.6 ± 0.01	115.49	16.54 ± 0.17	102.73	11.78
SUN09XZ	11.24	12.3 ± 0.01	109.98	11.22 ± 0.50	100.18	9.33
SUN10XZ	16.06	17.9 ± 0.01	111.65	16.78 ± 0.24	104.22	6.88
SUN11XZ	16.06	18.7 ± 0.01	116.26	17.52 ± 0.18	108.82	6.61
SUN12XZ	16.06	18.6 ± 0.01	115.64	18.16 ± 0.17	112.80	2.49
SUN14TZ	4.82	5.52 ± 0.01	115.08	5.65 ± 0.28	117.71	−2.26
SUN16XZ	14.94	14.8 ± 0.01	99.24	16.21 ± 0.20	108.72	−9.12
SUN17XZ	20.08	19.6 ± 0.01	97.26	18.85 ± 0.14	93.83	3.59
SUN18XZ	5.62	7.61 ± 0.01	135.83	6.19 ± 0.15	110.54	20.55
SUN19XZ	18.07	11.1 ± 0.01	61.56	9.19 ± 0.06	50.66	19.46
SUN20XZ	7.31	9.10 ± 0.01	124.64	7.37 ± 0.84	102.19	19.84
SUN21XZ	20.08	19.7 ± 0.01	98.12	18.59 ± 0.21	92.54	5.86
SUN22XZ	5.54	6.95 ± 0.01	126.32	5.63 ± 0.03	102.73	20.62
SUN23XZ	14.94	15.2 ± 0.01	101.81	14.95 ± 0.05	100.40	1.40
SUN24XZ	9.40	11.4 ± 0.01	120.84	9.93 ± 0.03	105.74	13.30
SUN25XZ	15.06	18.6 ± 0.01	123.02	14.91 ± 1.10	98.94	21.72
SUN26XZ	16.06	17.8 ± 0.01	110.34	16.59 ± 0.04	104.78	5.17
SUN28TZ	4.82	5.01 ± 0.01	104.37	4.93 ± 0.01	102.71	1.54
SUN30XZ	7.23	8.88 ± 0.01	123.27	7.75 ± 0.42	107.64	13.52
SUN32XZ	16.06	18.1 ± 0.01	112.15	17.32 ± 0.01	107.27	4.45
SUN35TZ	9.32	11.1 ± 0.01	118.46	11.20 ± 0.31	120.22	−1.47