Ultrasound-Assisted Extraction of Micro- and Macroelements in Fruit Peel Powder Mineral Supplement for Osteoporosis Patients and Their Determination by Flame Atomic Absorption Spectrometry

Table 7

Parameters of the calibration curve, results of detection limits, and precision studies.

Metal	m	b	r^2	LOD (μg ^−1)	LOQ (μg ^−1)	(%) RSD
Mn	0.1338	0.1532	0.9987	0.012	0.040	1.41
Fe	0.0982	0.1384	0.9991	0.017	0.056	0.43
Cu	0.7552	0.1973	0.9989	0.019	0.063	1.38
Zn	0.1231	0.1452	0.9981	0.018	0.059	2.29
Mg	0.4293	0.2180	0.9998	0.006	0.017	1.67
K	11.200	9.110	0.9978	0.058	0.175	0.59
Ca	0.3168	0.2314	0.9991	0.023	0.053	0.87