Table 3.

Batch to batch heavy metals analysis of the NF

Parameter (unit)	Batch number						Method of analysis
	#11	#12	#13	#14	#15	#16
Heavy metals
Arsenic (mg/kg)	0.23	0.19	0.28	0.29	0.20	0.22	ICP‐MS (USP 730)
Cadmium (mg/kg)	0.067	0.061	0.066	0.063	0.050	0.035
Lead (mg/kg)	0.02	0.02	0.02	0.02	0.04	0.01
Mercury (mg/kg)	0.027	0.021	0.042	0.035	0.027	0.025

ICP‐MS: Inductively Coupled Plasma‐Mass Spectroscopy; USP: United States Pharmacopeia.