The mean ± SE concentrations of Ni, Cr, Cu, Zn and Pb in (μg • g-1) isolated from 58 bottles of over the counter herbal supplements.

The mean ± SE concentrations of Ni, Cr, Cu, Zn and Pb in (μg • g-1) isolated from 58 bottles of over the counter herbal supplements.以微克每克（μg•g⁻¹）为单位，从58瓶非处方草本补充剂中分离得到的镍（Nickel）、铬（Chromium）、铜（Copper）、锌（Zinc）与铅（Lead）的浓度数据，均以平均值±标准误（Standard Error，SE）表示。