We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Determination of heavy metals in chinese prickly ash from different production areas using inductively coupled plasma-mass spectrometry.
- Authors
Xing-Bao Tao; Wei Peng; Xiao-Qin Yu; Da-Shuai Xie; Mei-Bian Hu; Dan Yan; Chong-Bo Zhao; Wei-Dong Jiang; Chun-Jie Wu
- Abstract
Purpose: To determine the heavy metal content of Chinese prickly ash (CPA) produced in various areas of China. Methods: CPA samples collected from different production areas in China were subjected to microwave digestion, and the contents of copper (Cu), nickel (Ni), chromium (Cr), lead (Pb), cadmium (Cd), arsenic (As), mercury (Hg), tin (Sn), and antimony (Sb) were determined by inductively coupled plasma-mass spectrometry (ICP-MS). Results: Heavy metal levels in the CPA samples followed the order: Cu (3.29-24.17 mg/kg) > Cr (0.04- 7.33 mg/kg) > Ni (0.88-6.86 mg/kg) > Pb (0.00-3.84 mg/kg) > As (0.0011-1.08 mg/kg) > Cd (0.029-0.211 mg/kg) > Sb (0.03-0.21 mg/kg) > Sn (0.00-0.15 mg/kg) > Hg (0.000-0.032 mg/kg). Metal-to-metal correlation studies showed that there were significant correlations between Cu-Cr (p = -4.02), Cu-Ni (p = 0.561), Cu-As (p = 0.554) and Ni-As (p = 0.428) at the 0.01 level. Also, some metal-to-metal correlations were observed in Pb-Cr (p = 0.351), Pb-Cu (p = -0.310), Sb-Cd (p = 0.322), Sb-Hg (p = 0.311) and Cd-Sn (p = 0.309) at the 0.05 level. The highest concentrations of Pb and As in CPA exceeded the maximum permissible limits in China. Based on current safety standards, the concentrations of heavy metals in these CPA samples mean they are safe for human consumption. Conclusions: The status of heavy metal concentrations of CPA should be further investigated in Sichuan, Shaanxi, Shanxi and Jiangsu. In addition, ICP-MS is a reliable and rapid technique for the determination of the heavy metals in CPA.
- Subjects
CHINA; HEAVY metals; PEPPER (Spice); INDUCTIVELY coupled plasma mass spectrometry; STATISTICAL correlation
- Publication
Tropical Journal of Pharmaceutical Research, 2016, Vol 15, Issue 8, p1767
- ISSN
1596-5996
- Publication type
Article
- DOI
10.4314/tjpr.v15i8.24