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日(外一首)
【出 处】
:
青年文学家
【发表日期】
:
2022年7期
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对活猪采用大腿肌肉注射法持续给予一定浓度的克伦特罗溶液,饲养至稳定状态后,宰杀取猪肉部分制备猪肉冻干粉中克伦特罗基质标准物质.样品检测参考GB/T 22286—2008《动物源性食品中多种β-受体激动剂残留量的测定》,采用同位素内标液相色谱质谱联用法检测克伦特罗的含量,并对样品中克伦特罗的均匀性和稳定性进行评价.定值采用同一检测方法8家实验室协作定值方式,并对标准物质的不确定度进行评估.结果表明,该标准物质的均匀性和稳定性满足标准物质制备的要求,标准物质中克伦特罗含量定值结果为(0.927±0.075)μ
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