Premium
Validation of mineral analytical method for food composition data‐up construction (1043.5)
Author(s) -
Hwang Jinbong,
Oh Mira,
Kim Soyoung,
Kim Sena,
Nam Jinsik
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.1043.5
Subject(s) - chemistry , potassium , magnesium , detection limit , zinc , sodium , manganese , phosphorus , calcium , copper , standard addition , inductively coupled plasma mass spectrometry , inductively coupled plasma , inductively coupled plasma atomic emission spectroscopy , environmental chemistry , mass spectrometry , chromatography , physics , plasma , organic chemistry , quantum mechanics
The analytical method for the determination of minerals (sodium, calcium, potassium, phosphorus, magnesium, iron, copper, manganese, and zinc) in foods by inductively coupled plasma optical emission spectrometry (ICP‐OES) was validated in terms of precision, accuracy, and linearity. SRM 1849a was used as a test sample which was purchased from NIST in USA. Regression analysis revealed good correlation coefficient ( r 2 ) that was higher than 0.999. Recovery efficiencies of the minerals ranged from 90.36 % to 110.63 %, and the limit of detection (LOD) and the limit of quantification (LOQ) by ICP‐OES were less than 0.1005 mg/kg and less than 0.3351 mg/kg, respectively. The inter‐day of accuracy was between 1.19 and 18.19 % (n=12), and intra‐day of accuracy was from 0.09 to 4.80 % (n=3). In addition, the amounts of minerals were determined that several kinds of cereals and variety vegetables were purchased from Rural Development Administration (RDA) in Korea. The levels of sodium, calcium, potassium, phosphorus, magnesium, iron, copper, manganese, and zinc in cereals and vegetables ranged from 0.33 to 1371.55 mg/kg, 2.70 to 1494.81 mg/kg, 5.07 to 4939.06 mg/kg, 7.95 to 564.47 mg/kg, 3.92 to 606.94 mg/kg, 0.13 to 31.61 mg/kg, 0.01 to 1.58 mg/kg, 0.05 to 16.98 mg/kg and 0.07 to 11.27 mg/kg, respectively. These results suggest that analytical method verified in the present study will be used as a public analytical method to draw up food composition database for national health promotion.