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internal calibration method
释义
internal calibration method
Encyclopedia
理学
内标法
释
internal calibration method
内标法
不用标准物质作对照,只用一定量的纯物质作为内标物,加入待测样品中同条件测定,由相对校正因子计算待测组分的量的定量分析方法。又称内标校正方法。仪器分析中的一种比较准确的定量分析方法。该法的内标物要严格选择。内标物应是一个已知的能与待测组分良好分离的纯化合物,最好与待测组分有相同或类似的理化性质、仪器响应特征,例如同系物等。
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