目前,由于保健药品(饮、食品)的种类越来越多,其组分也较复杂,各种人为加入的元素如铁、锌、钙等含量较高,在样品分析过程中难免要相互干扰。在测定这类样品中铅的浓度时,按照ＧＢ5009,12,96双硫腙比色法测得铅含量严重超标,其数值一般在1.0～2.0ｍｇ/Ｋｇ,明显高于其它食品。 At present, due to more and more types of health-care medicines (beverages and foods) and their components are also complicated, various artificially added elements, such as iron, zinc and calcium, are high in content and inevitably interfere with each other in sample analysis . In determining the concentration of lead in such samples, the content of lead in the samples exceeded the standard in accordance with GB5009,12,96 dithizone colorimetric method. The value is generally 1.0-2.0mg / Kg, which is obviously higher than that of other foods.