Table 2.

Results for As, Cd, Mo, and Pb in CRM, certified values, and recoveries.

	As	Cd	Mo	Pb
Found (mg/kg) mean minimum–maximum	0.276 0.271–0.284	0.186 0.174–0.194	0.300 0.271–0.318	1.78 1.72–1.83
CRM (mg/kg)	0.28 ± 0.07 *	0.17 ± 0.04 *	0.32 ± 0.08 *	1.8 ± 0.4 *
Recovery (%)	98	110	94	99

* 95% confidence interval.