Microwave-Assisted Digestion Using Dilute Nitric Acid and Hydrogen Peroxide for Multielement Determination in Wheat Flour by ICP-MS

Table 5

Concentrations of elements (mg kg⁻¹) determined in wheat flour for imported samples of wheat, showing minimum, maximum, and mean concentrations.

	Mg	K	Ca	Al	Mn	Fe	Cu	Zn	Se	Rb	V	Cd	As
Superior wheat	455	2042	328	2.17	11.4	49.7	1.55	9.7	0.20	3.01	0.01	0.03	0.0022
Brawn wheat	1795	5174	641	3.62	51.5	28.0	6.94	16.0	0.08	7.88	0.008	0.01	0.01
Foom wheat	3466	8016	715	17.13	52.9	90.9	12.03	38.2	0.04	11.32	0.024	0.06	0.006
Gulf brawn wheat	1381	4742	331	15.34	30.5	60.2	6.93	20.1	1.2	6.68	0.02	0.03	0.004
Dubai wheat	1752	4286	454	4.64	28.1	27.9	6.14	19.3	0.01	7.14	0.005	0.03	0.001
Imported organic wheat	1416	4384	522	5.0	19.98	20.8	7.5	18.7	0.01	6.18	0.01	0.02	0.004
Max	3466	8016	715	17.13	52.9	90.9	12.03	38.2	1.2	11.32	0.024	0.06	0.01
Min	455	2042	328	2.17	11.4	27.9	1.55	9.7	0.01	3.01	0.005	0.01	0.001
Max-min	3011	5974	387	14.96	41.5	63	10.48	28.5	1.19	8.31	0.019	0.05	0.009
Mean	1710.8	4774	498.5	7.98	32.39	46.25	6.84	20.33	0.25	7.04	0.014	0.03	0.0045