
Keywords: طیف سنجی پلاسمای پیوندی الکتریکی; ICP; Inductively coupled plasma spectrometry; MADL; Maximum allowable dose level; PTTIL; Provisional tolerable total intake level; PTWI; Provisional tolerable weekly intake; UL; Tolerable upper intake level; XRF; X-ray fluorescence; Lead; Cadmium; Arsenic