目的： 通过电感耦合等离子体发射光谱（ICP-OES）测定不同方法消解的不同药品中金属元素,比较不同药品消解条件的优缺点。方法： 高频功率为1 150 W,等离子体气流速10 L·min-1,分析谱线为189.0（As）、226.5（Cd）、182.2（Pb）、217.5（Sb）、202.5（Zn）。结果： 2 种药品在4 种消解方法下均完全消解,消解液呈无色或淡黄色。1 种药品在超高压（6.08×107 Pa）微波消解中,消解液呈无色或淡黄色,消解完全,但在另3 种消解方法处理下,消解液会析出,呈浑浊状态,表明未完全消解。结论： 不同类型药品,采用的消解方式不同;对于其他方法难消解的样品,采用超高压微波消解,具有干扰小,消解时间短,污染程度小等优点。
Objective： To determine the metal elements in different drugs digested by different methods by inductively coupled plasma-optical emission spectrometry（ ICP-OES）,so as to compare the advantages and disadvantages of different digestion conditions. Methods： The plasma gas flow rate was set at 10 L·min-1 while RF powers was 1 150 W,and analytical lines of element were 189.0 nm（As）,226.5 nm（Cd）,182.2 nm（Pb）,217.5 nm（Sb）,202.5 nm（Zn）. Results： Two drugs were completely digested under four digestion methods,and the digestion solution was colorless or light yellow. One drug was completely digested under ultra-high pressure （6.08×107 Pa）microwave digestion,and the digestion solution was colorless or light yellow. But under the other three digestion methods,the digestion solution would precipitate and be turbid,indicating that it was not completely digested. Conclusion： Different types of drugs use different digestion methods. For samples that are difficult to digest by other methods,ultrahigh-pressure microwave digestion is used,which has the advantages of low interference,short digestion time,and low pollution.
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