Weighing is inherently a more positive and accurate method. 称重法从根本上说是一种更可靠和更精确的方法。
Methods Use weighing method to weight the dry matter and an HPLC method to determine the content of isoimperatorin in A. dahurica root. 方法采用称重法测定白芷干物质,高效液相色谱法测定根中异欧前胡素。