Table 2005.07A.

Interlaboratory study resutls for the determination of total β-carotene

Sample No.	Sample matrix	Unit	Mean	s_r	s_R	RSD_r,%	RSD_R,%	r	R	HorRat value
101, 114	Softgel with β-carotene and lycopene present	mg/capsule	0.527	0.032	0.052	6.17	9.88	0.091	0.146	See Table 2005.07C
102, 120	Capsule, β-carotene from carrot oil	mg/g	0.505	0.053	0.072	10.52	14.29	0.148	0.202	2.28
103, 118	Multivitamin tablet	mg/g	0.535	0.122	0.124	22.88	23.09	0.343	0.346	3.72
104, 112	Softgel, β-carotene in soy oil	mg/capsule	15.68	1.05	1.19	6.70	7.60	2.94	3.33	See Table 2005.07C
105, 109	Softgel, β-carotene in unknown oil	mg/capsule	6.65	0.061	0.801	9.09	12.04	1.69	2.24	See Table 2005.07C
106, 110	Placebo tablet	mg/g	0	NA^a	NA	NA	NA	NA	NA	NA
107, 119	Beadlets used as raw material	mg/g	196	11	24	5.39	12.3	29.57	67.43	4.81
108, 116	Multivitamin/multimineral tablet	mg/g	0.516	0.019	0.034	3.68	6.61	0.053	0.095	1.06
111, 121	Softgel, β-carotene in fish oil	mg/capsule	0.056	0.0041	0.0076	7.23	13.56	0.011	0.021	See Table 2005.07C
113, 117	Hard tablet	mg/g	49	3	3.6	6.22	7.31	8.53	10.03	2.32
115, 122	Softgel with vitamins A and E present	mg/capsule	15.19	1.10	1.1	7.25	7.25	3.09	3.09	See Table 2005.07C
2–1, 2–4	Ultracarotenoid softgel	mg/capsule	16.92	0.44	0.87	2.60	4.87	1.23	2.31	See Table 2005.07C
2–2, 2–3	Carotenoid softgel	mg/capsule	3.55	0.029	0.32	0.82	9.10	0.081	0.90	See Table 2005.07C

NA = Not applicable.