4中药标准物质的制备和标定4.1中药化学对照品4.1.1品种的确定根据国家药品标准修订和颁布提出的使用要求(品种、用途),确定需要制备的新品种,或一个批号分发完成后须更换批次制备的品种。4.1.2中药化学对照品原料的制备根据品种情况,组织或委托有关的科研院所或生产企业提取分 4 Preparation and calibration of TCM reference materials 4.1 TCM chemical reference materials 4.1.1 Determination of species According to the application requirements (variety, use) proposed by the revision and promulgation of national drug standards, the new varieties to be prepared are determined, or a lot number must be distributed after completion. Replace batch prepared varieties. 4.1.2 Preparation of raw materials for reference materials for traditional Chinese medicine chemistry According to the situation of varieties, the organization or commissioning of relevant scientific research institutes or production enterprises to extract points